Article
Chemistry, Multidisciplinary
Zhang Yu, Li Zhi, Saurabh Singh, Amin Nozariasbmarz, Li Wenjie, Aziz Genc, Yi Xia, Zheng Luyao, Seng Huat Lee, Sumanta Kumar Karan, Gagan K. Goyal, Liu Na, Sanghadasa M. F. Mohan, Mao Zhiqiang, Andreu Cabot, Christopher Wolverton, Bed Poudel, Shashank Priya
Summary: This study demonstrates the use of S and Se co-doping to stabilize p-type AgSbTe2 materials, which exhibit an outstanding maximum figure of merit (zT(max)) of 2.3 at 673 K and an average figure of merit (zT(ave)) of 1.59 over the wide temperature range of 300-673 K. The exceptional performance is attributed to enhanced carrier density, improved Seebeck coefficient, and higher stability beyond 673 K. These results provide an effective strategy for engineering high-performance TE materials in the mid-temperature range.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Subhajit Roychowdhury, Tanmoy Ghosh, Raagya Arora, Manisha Samanta, Lin Xie, Niraj Kumar Singh, Ajay Soni, Jiaqing He, Umesh Waghmare, Kanishka Biswas
Summary: By optimizing atomic disorder and cadmium doping in polycrystalline silver antimony telluride, high thermoelectric performance with near room-temperature figure of merit ZT of around 1.5 and maximum ZT of around 2.6 at 573 kelvin is achieved. This strategy of enhancing cationic ordering while reducing lattice thermal conductivity is applicable to most thermoelectric materials with inherent atomic disorder.
Article
Chemistry, Multidisciplinary
Vaishali Taneja, Subarna Das, Kapildeb Dolui, Tanmoy Ghosh, Animesh Bhui, Usha Bhat, Dinesh Kumar Kedia, Koushik Pal, Ranjan Datta, Kanishka Biswas
Summary: This study demonstrates the PGEC-like behavior of AgSbTe2 by tuning atomic disorder through Yb doping, resulting in outstanding thermoelectric performance. Enhanced atomic ordering induced by doping decreases the overlap between hole and phonon mean free paths, leading to PGEC-like transport behavior. The formation of cation-ordered domains scatters heat-carrying phonons, resulting in a temperature-independent glass-like thermal conductivity. This strategy paves the way for achieving high thermoelectric performance in various disordered crystals.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zichen Gong, Kivanc Saglik, Jing Wu, Ady Suwardi, Jing Cao
Summary: By combining an off-stoichiometric composition and a non-equilibrium process, the thermoelectric performance of AgSbTe2 has been improved significantly, addressing the issues of high electrical resistivity and low Seebeck coefficient.
Article
Chemistry, Physical
Yi Wu, Pengfei Qiu, Yuan Yu, Yifei Xiong, Tingting Deng, Oana Cojocaru-Miredin, Matthias Wuttig, Xun Shi, Lidong Chen
Summary: AgSbTe2-based ternary chalcogenides can be stabilized below their decomposition threshold, and Ag0.9Sb1.1Te2.1 demonstrates excellent thermoelectric performance, making it a promising candidate for miniaturized refrigeration and power generation in the low- and middletemperature ranges.
JOURNAL OF MATERIOMICS
(2022)
Article
Materials Science, Multidisciplinary
Tao Hong, Dongyang Wang, Bingchao Qin, Xiao Zhang, Yongjin Chen, Xiang Gao, Li-Dong Zhao
Summary: This study successfully optimized the thermoelectric transport properties of SnTe by introducing excess Pb and alloying with AgSbTe2. This stepwise strategy significantly improved the ZT value, showing promising potential for SnTe as a thermoelectric material.
MATERIALS TODAY PHYSICS
(2021)
Review
Chemistry, Physical
Tanmoy Ghosh, Subhajit Roychowdhury, Moinak Dutta, Kanishka Biswas
Summary: Recent research has achieved highly optimized thermoelectric performance in AgSbTe2, addressing the long-standing issue of Ag/Sb cationic ordering in polycrystalline samples. This study provides a new approach for designing thermoelectric materials and highlights the importance of atomic order-disorder optimization strategy in enhancing thermoelectric properties.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Jing Cao, Jinfeng Dong, Kivanc Saglik, Danwei Zhang, Samantha Faye Duran Solco, Ivan Joel Wen Jie You, Hongfei Liu, Qiang Zhu, Jianwei Xu, Jing Wu, Fengxia Wei, Qingyu Yan, Ady Suwardi
Summary: Inorganic thermoelectrics have made significant progress due to advancements in physical understanding and structural properties. P-type AgSbTe2 has emerged as one of the best materials for low and medium temperature applications, but it suffers from stability and consistency issues. This study investigates the variability of AgSbTe2 properties and proposes a non-equilibrium annealing strategy for achieving consistent properties. The optimized annealed and quenched pristine AgSbTe2 demonstrates a peak zT of 1.15 at 623 K. Without the presence of stabilizing dopants, it is recommended to use AgSbTe2 for cooling near room temperature and for waste heat harvesting above 633 K.
Article
Chemistry, Physical
Xiaohe Zhang, Lin Sun, Peng Jiang, Xinhe Bao
Summary: This study successfully modulates the concentration of vacancies and grain size in oriented Cd-doped AgSbTe2 films, improving the electrical conductivity and power factor. The thermal conductivity of the AgSbTe2-based thin films is significantly reduced by the scattering induced by nanostructures and grain boundaries. The research demonstrates that the modulation of vacancies and microstructures is a feasible way to enhance the TE performance of AgSbTe2-based films.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Animesh Bhui, Subarna Das, Raagya Arora, Usha Bhat, Prabir Dutta, Tanmoy Ghosh, Riddhimoy Pathak, Ranjan Datta, Umesh V. Waghmare, Kanishka Biswas
Summary: Defect engineering, achieved by precise tuning of atomic disorder, can significantly enhance thermoelectric performance. The introduction of Hg doping into AgSbTe2 reduces structural disorder, increases carrier mobility, and lowers lattice thermal conductivity. A high thermoelectric figure-of-merit, zT, is achieved at 570K.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Jae Ki Lee, Byungki Ryu, Sungjin Park, Ji Hee Son, Jongho Park, Jeongin Jang, Min-Wook Oh, SuDong Park
Summary: The study examined the effect of the AgSbTe2 microstructure on the thermoelectric conversion efficiency of an AgSbTe2 based alloy. It was found that the single-phase metastable structure with nanoscale precipitates exhibited the best thermoelectric performance, while the multiphase structure, despite having low thermal conductivity, had a balanced Seebeck coefficient due to the presence of multiple phases, resulting in a lower thermoelectric power factor.
Review
Physics, Multidisciplinary
Hongxia Liu, Xinyue Zhang, Wen Li, Yanzhong Pei
Summary: This article reviews the crystal structure, band structure, microstructure, synthesis techniques, and thermoelectric transport properties of TAGS-based alloys, as well as investigates successful strategies for enhancing their thermoelectric performance, providing opportunities for the development of other thermoelectric materials.
Article
Nanoscience & Nanotechnology
Rui Du, Guangbiao Zhang, Min Hao, Xiaowei Xuan, Panpan Peng, Pengya Fan, Haotian Si, Gui Yang, Chao Wang
Summary: In this study, AgSb1-xMgxTe2 samples were synthesized to improve the thermoelectric performance of AgSbTe2 by inhibiting the formation of Ag2Te impurity phase through Mg doping. The electrical conductivity of the samples was greatly improved due to the reduction of Ag2Te with n-type electrical conductivity. Moreover, Mg doping improved the configurational entropy change and decreased the lattice thermal conductivity over the entire temperature range of measurement.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Shan Gao, Xinjian Li, Wenting Ji, Yaqi Chen, Haidong Yu, Yuewen Zhang, Hongan Ma, Xiaopeng Jia
Summary: In this study, a high-temperature and high-pressure synthesis method was employed to successfully synthesize SrTiO3 samples with improved electrical properties without the need for post-synthesis reduction annealing. Additionally, by doping lanthanum at different pressures, the performance of the samples was further enhanced.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Javier Gainza, Federico Serrano-Sanchez, Oscar J. Dura, Norbert M. Nemes, Jose Luis Martinez, Maria Teresa Fernandez-Diaz, Jose Antonio Alonso
Summary: AgSbTe2 intermetallic compound is a promising thermoelectric material with excellent performance in LAST and TAGS alloys. The atomic ordering of Ag and Sb atoms greatly influences the electronic structure of the compound. Polycrystalline AgSbTe2 synthesized by arc-melting exhibits a nanostructured dense pellet morphology, with a layer thickness of approximately 25-30 nm. Anomalies in the transport properties around 600 K can be attributed to the onset temperature for atomic ordering. The average thermoelectric figure of merit remains stable at around 0.6 from 550 to 680 K.
Article
Engineering, Environmental
Xin-Ran Zhang, Jian-Gang Guo, Li-Jun Zhou
Summary: This study investigates the effects and mechanisms of environmental pH and graphene edges on the adsorption properties between graphene and benzene using experimental and theoretical approaches. The results show that benzene is more likely to adsorb on the surface of graphene in acidic environments, and the adsorption performance is better in the center of graphene compared to the edges. The pH effect is influenced by changes in electrostatic interaction, while the edge effect is dominated by van der Waals interaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Tong-Kun Zhang, Jian-Gang Guo, Li-Jun Zhou
Summary: A theoretical model based on the Lennard-Jones potential function is proposed to study the mechanical behaviors of atoms/ions adsorption and migration on the surface of finite-size doped graphene. The results show that the type, position, and domain size of doping elements have significant effects on the adsorption sites and energy of atoms/ions. Furthermore, the doping position, size, and distribution can effectively control the migration behavior of atoms/ions on the graphene surface. This research provides important theoretical reference for applications of doped graphene and graphene heterostructures in atom/ion carriers, molecular sieves, and ion battery electrodes.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Nuclear
F. Aharonian, Q. An, Axikegu, L. X. Bai, Y. X. Bai, Y. W. Bao, D. Bastieri, X. J. Bi, Y. J. Bi, J. T. Cai, Zhe Cao, Zhen Cao, J. Chang, J. F. Chang, E. S. Chen, Liang Chen, Long Chen, M. J. Chen, M. L. Chen, S. H. Chen, S. Z. Chen, T. L. Chen, X. J. Chen, Y. Chen, H. L. Cheng, N. Cheng, Y. D. Cheng, S. W. Cui, X. H. Cui, Y. D. Cui, B. Z. Dai, H. L. Dai, Z. G. Dai, Danzengluobu, D. della Volpe, K. K. Duan, J. H. Fan, Y. Z. Fan, Z. X. Fan, J. Fang, K. Fang, C. F. Feng, L. Feng, S. H. Feng, X. T. Feng, Y. L. Feng, B. Gao, C. D. Gao, L. Q. Gao, Q. Gao, W. Gao, W. K. Gao, M. M. Ge, L. S. Geng, G. H. Gong, Q. B. Gou, M. H. Gu, F. L. Guo, J. G. Guo, X. L. Guo, Y. Q. Guo, Y. Y. Guo, Y. A. Han, H. H. He, H. N. He, S. L. He, X. B. He, Y. He, M. Heller, Y. K. Hor, C. Hou, X. Hou, H. B. Hu, Q. Hu, S. Hu, S. C. Hu, X. J. Hu, D. H. Huang, W. H. Huang, X. T. Huang, X. Y. Huang, Y. Huang, Z. C. Huang, X. L. Ji, H. Y. Jia, K. Jia, K. Jiang, Z. J. Jiang, M. Jin, M. M. Kang, T. Ke, D. Kuleshov, B. B. Li, Cheng Li, Cong Li, F. Li, H. B. Li, H. C. Li, H. Y. Li, J. Li, Jian Li, Jie Li, K. Li, W. L. Li, X. R. Li, Xin Li, Y. Z. Li, Zhe Li, Zhuo Li, E. W. Liang, Y. F. Liang, S. J. Lin, B. Liu, C. Liu, D. Liu, H. Liu, H. D. Liu, J. Liu, J. L. Liu, J. S. Liu, J. Y. Liu, M. Y. Liu, R. Y. Liu, S. M. Liu, W. Liu, Y. Liu, Y. N. Liu, W. J. Long, R. Lu, Q. Luo, H. K. Lv, B. Q. Ma, L. L. Ma, X. H. Ma, J. R. Mao, A. Masood, Z. Min, W. Mitthumsiri, Y. C. Nan, Z. W. Ou, B. Y. Pang, P. Pattarakijwanich, Z. Y. Pei, M. Y. Qi, Y. Q. Qi, B. Q. Qiao, J. J. Qin, D. Ruffolo, A. Saiz, C. Y. Shao, L. Shao, O. Shchegolev, X. D. Sheng, J. Y. Shi, H. C. Song, Yu Stenkin, V Stepanov, Y. Su, Q. N. Sun, X. N. Sun, Z. B. Sun, P. H. T. Tam, Z. B. Tang, W. W. Tian, B. D. Wang, C. Wang, H. Wang, H. G. Wang, J. C. Wang, J. S. Wang, L. P. Wang, L. Y. Wang, R. Wang, R. N. Wang, W. Wang, X. G. Wang, X. Y. Wang, Y. Wang, Y. D. Wang, Y. J. Wang, Y. P. Wang, Z. H. Wang, Z. X. Wang, Zhen Wang, Zheng Wang, D. M. Wei, J. J. Wei, Y. J. Wei, T. Wen, C. Y. Wu, H. R. Wu, S. Wu, X. F. Wu, Y. S. Wu, S. Q. Xi, J. Xia, J. J. Xia, G. M. Xiang, D. X. Xiao, G. Xiao, G. G. Xin, Y. L. Xin, Y. Xing, Z. Xiong, D. L. Xu, R. X. Xu, L. Xue, D. H. Yan, J. Z. Yan, C. W. Yang, F. F. Yang, H. W. Yang, J. Y. Yang, L. L. Yang, M. J. Yang, R. Z. Yang, S. B. Yang, Y. H. Yao, Z. G. Yao, Y. M. Ye, L. Q. Yin, N. Yin, X. H. You, Z. Y. You, Y. H. Yu, Q. Yuan, H. Yue, H. D. Zeng, T. X. Zeng, W. Zeng, Z. K. Zeng, M. Zha, X. X. Zhai, B. B. Zhang, F. Zhang, H. M. Zhang, H. Y. Zhang, J. L. Zhang, L. X. Zhang, Li Zhang, Lu Zhang, P. F. Zhang, P. P. Zhang, R. Zhang, S. B. Zhang, S. R. Zhang, S. S. Zhang, X. Zhang, X. P. Zhang, Y. F. Zhang, Y. L. Zhang, Yi Zhang, Yong Zhang, B. Zhao, J. Zhao, L. Zhao, L. Z. Zhao, S. P. Zhao, F. Zheng, Y. Zheng, B. Zhou, H. Zhou, J. N. Zhou, P. Zhou, R. Zhou, X. X. Zhou, C. G. Zhu, F. R. Zhu, H. Zhu, K. J. Zhu, X. Zuo
Summary: The LHAASO observatory analyzed KM2A data to study the flux variations of cosmic ray air showers during a thunderstorm on June 10, 2021. The number of shower events meeting trigger conditions significantly increased in atmospheric electric fields, with a maximum fractional increase of 20%. Trigger rate variations were strongly dependent on the primary zenith angle. Monte Carlo simulations using CORSIKA and G4KM2A showed good agreement with experimental data, assuming a uniform electric field of -700 V/cm with a thickness of 1500 m in the atmosphere above the observation level. The changes in shower detection rate were attributed to the modification of the number of secondary particles above the detector threshold due to acceleration/deceleration by the atmospheric electric field.
Article
Geography, Physical
Jiangang Guo, Jinfeng Wang, Chengdong Xu, Yongze Song
Summary: This article reviews the methods for spatial stratified heterogeneity (SSH) and categorizes them into four classes. Given that different stratification methods reflect distinct human understandings of spatial distributions and associations, further studies integrating SSH, advanced algorithms, and interdisciplinary methods are needed to reveal the nature of geographical attributes.
GISCIENCE & REMOTE SENSING
(2022)
Article
Physics, Condensed Matter
Zhaoxu Chen, Yuxin Yang, Jun Deng, Shixuan Du, Tianping Ying, Jiangang Guo, Xiaolong Chen
Summary: By doping or removing specific elements, NaAlGe single crystal transforms from a semiconductor to a superconductor, with a new structure potentially responsible for the emergence of superconductivity.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Chemistry, Multidisciplinary
Xu Chen, Ge Fei, Yanpeng Song, Tianping Ying, Dajian Huang, Bingying Pan, Dongliang Yang, Xiaofan Yang, Keyu Chen, Xinhui Zhan, Junjie Wang, Qinghua Zhang, Yanchun Li, Lin Gu, Huiyang Gou, Xin Chen, Shiyan Li, Jinguang Cheng, Xiaobing Liu, Hideo Hosono, Jian-gang Guo, Xiaolong Chen
Summary: This article introduces a superatomic crystal material, Au6Te12Se8, which exhibits a competition between superatomic charge-density wave (S-CDW) and superconductivity under external pressure. The S-CDW has the lowest threshold under external pressure compared to other atomic compounds and a second superconducting phase emerges above 7.3 GPa. The study found that pressure can induce mesoscopic slip of the superatoms and a 2D-3D transition of the Fermi surface topology, explaining the observed dimensional crossover of conductivity and re-entrant superconductivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Junjie Wang, Tianping Ying, Jun Deng, Cuiying Pei, Tongxu Yu, Xu Chen, Yimin Wan, Mingzhang Yang, Weiyi Dai, Dongliang Yang, Yanchun Li, Shiyan Li, Soshi Iimura, Shixuan Du, Hideo Hosono, Yanpeng Qi, Jian-gang Guo
Summary: Searching for functional square lattices in layered superconductor systems provides a clue to modify electron behavior and find exotic properties. Structural transformation of trigonal SnAs3 to square SnAs4 under pressure enables the realization of a functional As square lattice in Li0.6Sn2As2 and NaSnAs, resulting in record-high Tc values. The transfer of the conductive channel from out-of-plane to in-plane orbitals facilitates electron hopping within the 2D lattice and enhances superconductivity. Reorienting p-orbitals through a local structure transformation offers an effective strategy for modifying layered superconducting systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Yi-Xiu Du, Li -Jun Zhou, Jian-Gang Guo
Summary: The negative Poisson's ratio (NPR) of graphene is investigated using molecular dynamics (MD) simulations with orderly arranged epoxy groups on its surface. When two epoxy groups are located on the same side of a zigzag bridge in a representative cell of graphene, a ripple area appears on the surface, contributing to the NPR phenomenon. A truss structure model is proposed to understand the de-wrinkling effect during stretching. The study finds that graphene exhibits a remarkable NPR when wrinkle regions are evenly distributed along the X and Y directions in a 5 nm x 5 nm graphene. The proportion of oxygen atoms in graphene significantly affects its NPR, with the most pronounced NPR observed at 4.2% oxygen atom proportion.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Physics, Multidisciplinary
Zhenkai Xie, Meng Yang, Zhi Gang Cheng, Tianping Ying, Jian-gang Guo, Xiaolong Chen
Summary: Previous investigations have mainly focused on the interplay between superconductivity and charge density wave (CDW) in 4Hb-TaS2-2xSe2x, while the superconductivity itself, enhanced by isovalent Se substitution, has not been adequately explored. In this study, comprehensive electrical and magneto-transport measurements were conducted on single crystals of 4Hb-TaS2-2xSe2x. The results showed that the superconducting transition temperature (Tc) increases with optimal Se doping content, and Se incorporation reduces the superconductivity anisotropy in the layered structure. Furthermore, the resistivity transition widths do not follow the canonical 2D Tinkham model but have a linear relationship with the variation of the external magnetic field, emphasizing the importance of interlayer interaction in this superconducting-Mott-insulating system.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2023)
Article
Nanoscience & Nanotechnology
Jia-Wei Li, Jian-Gang Guo, Li-Jun Zhou
Summary: Many studies have shown that the nanotwinned structure and graphene reinforcing phase can improve the mechanical properties of aluminum. However, the synergistic effect of the two on the strengthening and toughening mechanisms of aluminum matrix composites has rarely been reported. In this work, molecular dynamics simulations are used to study the mechanical properties and microscopic deformation mechanisms of graphene/nanotwinned aluminum matrix composites. The effects of graphene distribution patterns, twin boundaries (TBs), their angles, and the number of graphene layers on the mechanical behaviors of the composites are analyzed.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Cell Biology
Jiangang Guo, Inka Terhorst, Paul Stammer, Abdulhakim Ibrahim, Alexander Oberhuber, Thorsten Eierhoff
Summary: This study investigated the phosphorylation of vascular endothelial cadherin (VEC) induced by short-chain fatty acid butyrate (BUT) and the signaling pathway involved. BUT specifically phosphorylated VEC at the Y731 site and engaged FFAR3, FFAR2, and c-Src kinase in the phosphorylation process. The phosphorylation of VEC was associated with increased endothelial permeability and structural changes in junctional VEC, providing insights into the pathophysiology and therapy of vascular diseases.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2023)
Article
Chemistry, Physical
Shuo-Yan Zhang, Jian-Gang Guo
Summary: The surface of Salvinia exhibits superhydrophobicity and good compressive stability due to its dense microscopic eggbeater structure villi. A theoretical model was established to analyze the interface mechanical behaviors during droplet infiltration into the microstructures. By adjusting the morphological and geometric parameters, such as the edge angle, number of branching, width, and spacing, the biomimetic structure can maintain a stable Cassie state and control the apparent contact angle. These findings provide a theoretical foundation for the design of superhydrophobic surfaces with high stability and tunable wettability.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Mechanical
Xin-Liang Li, Jian-Gang Guo
Summary: By combining molecular dynamics simulations and continuum modeling, the compressive mechanical properties of honeycomb three-dimensional (h3D), triangle-like 3D (t3D), and non-equilateral hexagon 3D (nh3D) graphene were investigated. The compressive stress-strain responses of 3D graphene can be divided into five stages, with different mechanical properties and deformation mechanisms in each stage. The selection criteria of 3D graphene are proposed based on the results obtained.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Astronomy & Astrophysics
F. Aharonian, Q. An, Q. An, L. X. Bai, Y. X. Bai, Y. W. Bao, D. Bastieri, X. J. Bi, Y. J. Bi, J. T. Cai, Z. Cao, Z. Cao, J. Chang, J. F. Chang, E. S. Chen, L. Chen, L. Chen, L. Chen, M. J. Chen, M. L. Chen, Q. H. Chen, S. H. Chen, S. Z. Chen, T. L. Chen, Y. Chen, H. L. Cheng, N. Cheng, Y. D. Cheng, S. W. Cui, X. H. Cui, Y. D. Cui, B. D'Ettorre Piazzoli, B. Z. Dai, H. L. Dai, Z. G. Dai, Dnzengluobu, D. della Volpe, K. K. Duan, J. H. Fan, Y. Z. Fan, Z. X. Fan, J. Fang, K. Fang, C. F. Feng, L. Feng, S. H. Feng, X. T. Feng, Y. L. Feng, B. Gao, C. D. Gao, L. Q. Gao, Q. Gao, W. Gao, W. K. Gao, M. M. Ge, L. S. Geng, G. H. Gong, Q. B. Gou, M. H. Gu, F. L. Guo, J. G. Guo, X. L. Guo, Y. Q. Guo, Y. Y. Guo, Y. A. Han, H. H. He, H. N. He, S. L. He, X. B. He, Y. He, M. Heller, Y. K. Hor, C. Hou, X. Hou, H. B. Hu, Q. Hu, S. Hu, S. C. Hu, X. J. Hu, D. H. Huang, W. H. Huang, X. T. Huang, X. Y. Huang, Y. Huang, Z. C. Huang, X. L. Ji, H. Y. Jia, K. Jia, K. Jiang, Z. J. Jiang, M. Jin, M. M. Kang, T. Ke, D. Kuleshov, K. Levochkin, B. B. Li, C. Li, C. Li, F. Li, H. B. Li, H. C. Li, H. Y. Li, J. Li, J. Li, J. Li, K. Li, W. L. Li, X. R. Li, X. Li, X. Li, Y. Z. Li, Z. Li, Z. Li, E. W. Liang, Y. F. Liang, S. J. Lin, B. Liu, C. Liu, D. Liu, H. Liu, H. D. Liu, J. Liu, J. L. Liu, J. S. Liu, J. Y. Liu, M. Y. Liu, R. Y. Liu, S. M. Liu, W. Liu, Y. Liu, Y. N. Liu, W. J. Long, R. Lu, Q. Luo, H. K. Lv, B. Q. Ma, L. L. Ma, X. H. Ma, J. R. Mao, A. Masood, Z. Min, W. Mitthumsiri, Y. C. Nan, Z. W. Ou, B. Y. Pang, P. Pattarakijwanich, Z. Y. Pei, M. Y. Qi, Y. Q. Qi, B. Q. Qiao, J. J. Qin, D. Ruffolo, A. Saiz, C. Y. Shao, L. Shao, O. Shchegolev, X. D. Sheng, J. Y. Shi, H. C. Song, Yu Stenkin, V Stepanov, Y. Su, Q. N. Sun, X. N. Sun, Z. B. Sun, P. H. T. Tam, Z. B. Tang, W. W. Tian, B. D. Wang, C. Wang, H. Wang, H. G. Wang, J. C. Wang, J. S. Wang, L. P. Wang, L. Y. Wang, R. Wang, R. N. Wang, W. Wang, X. G. Wang, X. Y. Wang, Y. Wang, Y. D. Wang, Y. J. Wang, Y. P. Wang, Z. H. Wang, Z. X. Wang, Z. Wang, Z. Wang, D. M. Wei, J. J. Wei, Y. J. Wei, T. Wen, C. Y. Wu, H. R. Wu, S. Wu, X. F. Wu, Y. S. Wu, S. Q. Xi, J. Xia, J. J. Xia, G. M. Xiang, D. X. Xiao, G. Xiao, G. G. Xin, Y. L. Xin, Y. Xing, Z. Xiong, D. L. Xu, R. X. Xu, L. Xue, D. H. Yan, J. Z. Yan, C. W. Yang, F. F. Yang, H. W. Yang, J. Y. Yang, L. L. Yang, M. J. Yang, R. Z. Yang, S. B. Yang, Y. H. Yao, Z. G. Yao, Y. M. Ye, L. Q. Yin, N. Yin, X. H. You, Z. Y. You, Y. H. Yu, Q. Yuan, H. Yue, H. D. Zeng, T. X. Zeng, W. Zeng, Z. K. Zeng, M. Zha, X. X. Zhai, B. B. Zhang, F. Zhang, H. M. Zhang, H. Y. Zhang, J. L. Zhang, L. X. Zhang, L. Zhang, L. Zhang, P. F. Zhang, P. P. Zhang, R. Zhang, S. B. Zhang, S. R. Zhang, S. S. Zhang, X. Zhang, X. P. Zhang, Y. F. Zhang, Y. L. Zhang, Y. Zhang, Y. Zhang, B. Zhao, J. Zhao, L. Zhao, L. Z. Zhao, S. P. Zhao, F. Zheng, Y. Zheng, B. Thou, H. Thou, J. N. Zhou, P. Zhou, R. Thou, X. X. Zhou, C. G. Zhu, F. R. Zhu, H. Zhu, K. J. Zhu, X. Zuo
Summary: In the Large High Altitude Air Shower Observatory (LHAASO), a square kilometer array is deployed to explore gamma-ray sources above 30 TeV and measure primary cosmic rays from 10 TeV to 100 PeV. This study introduces a new method using the detector untriggered probability to estimate particle density and distinguish single-particle signals detected by each detector without requiring prior knowledge. Experimental results show that this self-calibration method can determine particle numbers detected by each detector with an accuracy better than 2% within hours.
Article
Materials Science, Multidisciplinary
Xu Chen, Junjie Wang, Tianping Ying, Dajian Huang, Huiyang Gou, Qinghua Zhang, Yanchun Li, Hideo Hosono, Jian-gang Guo, Xiaolong Chen
Summary: By employing an entropy-enhancement strategy, researchers have successfully obtained a series of medium-entropy MPSe3 materials, leading to changes in their electrical and magnetic properties. The findings highlight the P-P dimer as a probe for diverse electronic structure and demonstrate the effectiveness of entropy enhancement in materials science.
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
