Article
Materials Science, Multidisciplinary
F. Scaravaggi, S. Sauerland, L. Wang, R. Kappenberger, P. Lepucki, A. P. Dioguardi, X. Hong, F. Caglieris, C. Wuttke, C. Hess, H-J Grafe, S. Aswartham, S. Wurmehl, R. Klingeler, A. U. B. Wolter, B. Buechner
Summary: Through magnetic susceptibility studies and high-resolution capacitance dilatometry experiments, we identified the phase diagram properties of Co-doped LaFeAsO. As the Co content increases, the antiferromagnetic and nematic phases gradually weaken, with bulk superconductivity appearing around 6% Co content. However, superconductivity decreases as the Co content goes higher.
Article
Chemistry, Physical
A. A. Mubarak, Saad Tariq, B. O. Alsobhi, Farida Hamioud, Ayash O. Alrashdi
Summary: The theoretical work investigates the influence of V doping in LaFeO3, showing that V-25% doping exhibits the highest ferromagnetism and transparency, making it suitable for magnetic tunnel junction applications.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qing Cao, Zhaoyang Cheng, Jiajun Dai, Tianxiao Sun, Guixiang Li, Lili Zhao, Jiayuan Yu, Weijia Zhou, Jianjian Lin
Summary: This study presents a rational design of ZnCo2O4 bimetal oxide templates to heterogeneously dope Zn and N into carbon nanotubes, resulting in enhanced catalytic performance for hydrogen evolution reaction. The utilization of Zn as an electronic regulator and activity promoter provides new insights for the design of high-efficiency electrocatalysts.
Article
Materials Science, Ceramics
Fenqi Du, Dongmei Yang, Yue Sun, Yang Jiao, Feng Teng, Haibo Fan
Summary: This study synthesized Zn-doped Ga2O3 nanofibers with various concentrations through electrospinning, showing superior photocatalytic performance compared to undoped Ga2O3 nanofibers. Zn doping replaced Ga sites, increasing oxygen vacancy concentration and enhancing photocatalytic properties. The formation of a Ga2O3/ZnGa2O3 hybrid structure with increasing Zn concentration further improved photocatalytic performance through carrier separation and heterojunctions.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Xinyan Wang, Can Wang, Xiaokang Yao, Yong Zhou, Ning Liang, Qiao Jin, Kun Chen, Meng He, Erjia Guo, Chen Ge, Guozhen Yang, Kuijuan Jin
Summary: In this study, Zn-doped BiFeO3 thin films were successfully grown on SrRuO3-buffered SrTiO3 substrates by pulsed laser deposition. The high-concentration Zn doping did not suppress the ferroelectric polarization of the films, while reducing leakage current and enhancing the photovoltaic effect. Optical and photoelectron spectroscopy measurements revealed that Zn doping increased oxygen vacancies and induced a structural evolution in the thin films, resulting in a blue-shift of the optical bandgap and an increase in the work function. The reduction of leakage current and the enhancement of photovoltaic effect were attributed to the variation of interfacial Schottky junctions and oxygen vacancies with doping. This study provides systematic insights into the effects of Zn doping on the physical properties of BiFeO3 thin films.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lior Asor, Jing Liu, Shuting Xiang, Nir Tessler, Anatoly I. Frenkel, Uri Banin
Summary: Doped heavy metal-free III-V semiconductor nanocrystal quantum dots (QDs) have attracted great interest for both their fundamental doping characteristics and their applicability in p-n homojunction devices. In this study, p-type doping of InAs NCs was achieved through the use of Zn, allowing for control over the charge carrier type in InAs QDs field effect transistors. X-ray absorption spectroscopy analysis confirmed substitutional doping by Zn2+ replacing In3+. Surface passivation by Zn was also observed, leading to enhanced near infrared photoluminescence. This research paves the way for the fabrication of optoelectronic devices active in the short-wave infrared region using heavy-metal free nanocrystal building blocks.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Hardy Shuwanto, Hairus Abdullah, Dong-Hau Kuo, Noto Susanto Gultom
Summary: Y-doped Zn(O,S) nanocatalysts were successfully synthesized and utilized for photocatalytic hydrogen evolution reaction and hydrogenation reaction. The formation of oxysulfide was confirmed by XRD, SAED, and DRS analyses. The mechanisms of HER and PHR were proposed, including steps of solvation, adsorption, pinning, and surface hydrogenation reactions.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Chongshang Guan, Tian Hou, Wuyang Nie, Qian Zhang, Libing Duan, Xiaoru Zhao
Summary: Different BiOBr powders (without and with Zn doping) were prepared and their properties were studied. Zn doped BiOBr exhibited higher carrier transportation ability, which improved the photocatalytic performance. The enhanced performance was attributed to the improved energy band structure and increased oxygen vacancy generation caused by Zn doping. The Zn doping synergized with oxygen vacancies to enhance carrier separation and transfer, leading to 1.75 times higher CH4 generation during CO2 photocatalytic reduction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Bingfeng Li, Jiahui Hong, Yuejie Ai, Yezi Hu, Zewen Shen, Shaojun Li, Yingtong Zou, Sai Zhang, Xiangke Wang, Guixia Zhao, Xiaoxiang Xu
Summary: Cu-doped SrTiO3 exhibits strong absorption of visible and near-infrared light, enabling efficient oxidation of benzyl alcohol to benzyl aldehyde with high selectivity. The introduction of Cu dopants leads to an increase in oxygen vacancies and interband transitions, extending the light response range of SrTiO3 and enhancing charge carrier separation efficiency.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Hai Wang, Ruiping Jing, Jingran Shi, Mengyuan Zhang, Sanmei Jin, Zhonglong Xiong, Long Guo, Qingbo Wang
Summary: In this study, Mo-doped NH4V4O10 was synthesized via a facile method and showed high capacity, excellent cycle performance, and improved electrochemical performance as a cathode material in aqueous Zn-ion batteries. The Mo doping enhanced the conductivity and Zn ion diffusion coefficient of NH4V4O10, providing a new strategy for designing potential cathodes for Zn-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Defeng Liu, Wei Xu, Dezhou Zheng, Yi Wang, Fuxin Wang, Lijun Zhou, Zanxiang Nie, Xihong Lu
Summary: Doping sulfur into NiCo2O4 (S-NCO) is an effective approach to improve the discharge capacity and cycling durability of alkaline Ni//Zn batteries, due to its higher electric conductivity and faster reaction kinetics. The S-NCO//Zn battery exhibits a higher areal capacity (0.721 mAh cm(-2) at 1 mA cm(-2)), no capacity attenuation after 4000 cycles, and a satisfactory coulombic efficiency of approximately 100%. Moreover, the S-NCO material shows excellent flexibility with stable electrochemical performance under various conditions.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Anastasia V. Egorova, Ksenia G. Belova, Irina E. Animitsa
Summary: The LaIn1-xZnxO3-1/2x samples were synthesized for the first time via solid-state reaction method. The effect of Zn2+ doping on the structure, water uptake and electrical properties of LaInO3 was investigated. The results show that Zn2+ is a good alternative to alkaline earth metals and improves the conductivity of the ceramics. The phase exhibits oxygen-ionic transport at temperatures below 500°C and protonic transport at temperatures below 600°C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Ceramics
Song Keke, Huang Hao, Lu Mengjie, Yang Anchun, Weng Jie, Duan Ke
Summary: Doping of trace elements in hydroxyapatite affects morphology and crystal growth direction, with manganese, zinc, and magnesium showing higher doping efficiency due to their similar ion radii to calcium. Copper, silicon, and selenium exhibit lower doping efficiency due to complexation or differences in geometry and charge. This study provides insights into the relationship between doping behavior and ion characteristics for the design and development of functionalized hydroxyapatite.
JOURNAL OF INORGANIC MATERIALS
(2021)
Article
Chemistry, Physical
Bo He, Jing Huang, Peng Ji, Tuan K. A. Hoang, Mei Han, Linjie Li, Lei Zhang, Zhongfeng Gao, Junhong Ma, Jian Zhi, P. Chen
Summary: This study proposes a strategy of Al doping to improve the performance of MnO as a cathode material for aqueous zinc ion batteries. The results show that Al-MnO exhibits high specific capacity and long-term capacity retention, providing novel insights into the design of cathodes for low cost and high safety aqueous ZIBs with excellent electrochemical performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Tianchi Chen, Fangchang Lin, Hongming Wu, Dengfeng Zhou, Jiling Song, Jianbing Guo
Summary: The LiNi0.5-xZnxMn1.48Y0.02O4 (x = 0.01, 0.03, 0.05) series were prepared via a sol-gel method to improve the electrochemical performance of the LiNi0.5Mn1.5O4 (LNMO) sample. The Zn-Y co-doping led to increased lattice parameters, morphological evolution, decreased Mn3+ content, and better electrochemical properties compared to the pristine LNMO. Among the samples, LiNi0.47Zn0.03Mn1.48Y0.02O4 (0.03ZnY) showed optimal electrochemical properties at room temperature and elevated temperature, with a higher discharge capacity and capacity retention than the pristine sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Shulun Han, Chi Sin Tang, Linyang Li, Yi Liu, Huimin Liu, Jian Gou, Jing Wu, Difan Zhou, Ping Yang, Caozheng Diao, Jiacheng Ji, Jinke Bao, Lingfeng Zhang, Mingwen Zhao, Milorad V. Milosevic, Yanqun Guo, Lijun Tian, Mark B. H. Breese, Guanghan Cao, Chuanbing Cai, Andrew T. S. Wee, Xinmao Yin
Summary: The recently discovered kagome topological superconductor AV(3)Sb(5) (A = K, Rb, Cs) has a unique structural motif that can host diverse topologically non-trivial phenomena. It remains unclear how atomic-level properties and many-body effects contribute to these symmetry-breaking phenomena. In this study, the role of V3d-Sb5p orbital hybridization in mediating the CDW phase transition in CsV3Sb5 is reported. The results highlight the critical role of Sb orbitals and establish orbital hybridization as the direct mediator of the CDW states and structural transition dynamics in kagome unconventional superconductors.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Guorui Xiao, Wuzhang Yang, Qinqing Zhu, Shijie Song, Guang-Han Cao, Zhi Ren
Summary: A series of new Cr5+xMo35xW12Re35Ru13C20 high-entropy alloys have been synthesized and characterized, showing bulk superconductivity. The lattice parameter and superconducting transition temperature vary with different compositions.
SCRIPTA MATERIALIA
(2023)
Article
Physics, Applied
Yupeng Li, Jingang Zhou, Miaocong Li, Lei Qiao, Chenxi Jiang, Qiming Chen, Yuke Li, Qian Tao, Zhu-An Xu
Summary: This study demonstrates the significant enhancement of large anomalous Nernst effect (ANE) in magnetic topological materials (MTMs) with kagome lattice by tuning the Fermi level to Dirac nodal points.
PHYSICAL REVIEW APPLIED
(2023)
Article
Materials Science, Multidisciplinary
Bin Liu, Wuzhang Yang, Guorui Xiao, Qinqing Zhu, Shijie Song, Guang-Han Cao, Zhi Ren
Summary: In this study, two new high-entropy silicides, (Nb0.1Mo0.3W0.3Re0.2Ru0.1)(5)Si-3 and (Nb0.2Mo0.3W0.3Re0.1Ru0.1)(5)Si-3, were synthesized and their crystal structure and physical properties were characterized. The results showed that both compounds were weakly coupled bulk superconductors with a tetragonal W5Si3-type phase and disordered cation distribution. Notably, these high-entropy silicides exhibited higher critical temperatures and the largest B-c2(0)/T-c ratios among superconductors with the same structural type.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Chemistry, Organic
Zhibin Du, Shiwen Liu, Yuke Li, Junjie Peng, Yanji Sun, Yanshan Song, Yuxuan Liu, Xiaojun Zeng
Summary: In this study, we achieved alpha- and delta-C(sp(3))-H alkylation of nitroalkanes with switchable regioselectivity by exploiting different activation modes of fluoroamides. Cu catalysis enabled the interception of a distal C-centered radical by a N-centered radical, allowing the coupling of nitroalkanes and unactivated delta-C-H bonds. Additionally, imines generated in situ by fluoroamides were trapped by nitroalkanes to realize the alpha-C-H alkylation of amides. Both of these scalable protocols have broad substrate scopes and good functional group tolerance.
Article
Engineering, Environmental
Dan Zeng, Yan Dong, Huajun Cao, Yuke Li, Bernard Hon, Cuimei Ma, Chris Yuan, Michael Z. Hauschild
Summary: This paper studies the environmental benefits of China's planned control measures on vehicular emissions. The research shows that burden-shifting may occur for electric vehicle deployment and demand-side interventions. In order to achieve the carbon peak goal, it is necessary to significantly improve the internal combustion engine vehicle fleet or the power grid.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Chemistry, Analytical
Kuigeng Lin, Yuke Li, Yunhao Wu, Haoran Fu, Jianqun Jiang, Yunmin Chen
Summary: This paper proposes a deep learning-based unbalanced force identification model that incorporates ResNet with handcrafted features and optimizes the loss function for imbalanced datasets. The model outperforms benchmark models in terms of accuracy and stability, reducing MAE by 15% to 51% and RMSE by 22% to 55% in the test dataset. It also shows high accuracy and strong stability in continuous identification during the speed-up process, surpassing the current traditional method by 75% in MAE and 85% in median error, providing guidance for counterweight and ensuring unit stability.
Article
Chemistry, Multidisciplinary
Yi Lian, Yuke Li, Yipan Lou, Zexu Liu, Chang Jiang, Zhengda Hu, Jicheng Wang
Summary: In this paper, an adjustable trifunctional absorber using vanadium dioxide (VO2) as the phase transition material is demonstrated to achieve broadband, narrowband and superimposed absorption in the mid-infrared domain. The absorption modes can be switched by modulating the temperature to regulate the conductivity of VO2. The absorber functions as a bidirectional perfect absorber with wideband and narrowband absorption in the metallic state of VO2, while superposed absorptance can be generated when VO2 is in the insulating state. The inner mechanism of the absorber is explained using the impedance matching principle. The designed metamaterial system shows promising applications in sensing, radiation thermometers, and switching devices.
Article
Chemistry, Multidisciplinary
Hou-Hong Li, Yang Liu, Hong-Sheng Chen, Ji Wang, Yu-Ke Li, Yang Zhao, Rui Sun, Jin-Gang He, Fang Wang, Jian-Guo Chen
Summary: This study reveals that inhibiting the medial septum-dentate gyrus circuit can reverse depression-like behavior induced by chronic social defeat stress. Further analysis shows that inhibiting gamma-aminobutyric acidergic neurons in the medial septum projecting to the dentate gyrus increases the expression of platelet-derived growth factor-BB in somatostatin positive interneurons of the dentate gyrus, contributing to the antidepressant-like effects. Overexpression or exogenous administration of platelet-derived growth factor-BB in the dentate gyrus rescues the inhibitory effects of chronic stress on neural stem cells proliferation, dendritic growth of adult-born hippocampal neurons, and depressive-like behaviors.
Article
Crystallography
Yi Liu, Jing Li, Shi-Jie Song, Wu-Zhang Yang, Jin-Ke Bao, Wen-He Jiao, Xiao-Feng Xu, Zhi Ren, Guang-Han Cao
Summary: We report the possible coexistence of nontrivial topology and antiferromagnetism in EuCdBi2. X-ray diffraction results show that EuCdBi2 has the same space group as SrMnBi2 and EuMnBi2. Magnetization, electrical transport, and specific heat measurements indicate an antiferromagnetic transition at 20 K. The large positive magnetoresistance is considered to come from Dirac bands, and Hall measurements show a crossover of Hall resistance from negative to positive values at around 150 K. EuCdBi2 could serve as a new platform to study the interplay of topological bands and antiferromagnetic order.
Article
Biochemistry & Molecular Biology
Mohanad Abunada, Nirajan Dhakal, William Z. Andyar, Yuke Li, Pamela Ajok, Noreddine Ghaffour, Jan C. Schippers, Maria D. Kennedy
Summary: This study aimed to calibrate and validate the MFI-UF method to ensure accurate measurements of particulate fouling in RO. The calibration of MFI-UF using standard particles showed strong linearity for dextran solutions but lack of reproducibility. For polystyrene solutions, MFI-UF linearity was verified at higher ranges but underestimated at lower ranges. Validation of MFI-UF using natural water demonstrated strong linearity over the entire measured range. Further research is needed to calibrate MFI-UF using heterogeneous mixtures of standard particles.
Article
Chemistry, Multidisciplinary
Shi-Jie Song, Jia-Yi Lu, Qin-Qing Zhu, Zhi Ren, Guang-Han Cao
Summary: Na2Fe2S2O exhibits an anti-K2NiF4-type structure with [Fe2S2O]2- block layers. It shows antiferromagnetic insulating behavior with a Neel temperature of 91.5 K. The Fe-S bond distance is found to be the main factor determining the Neel temperature, and short-range spin correlations are observed above the Neel temperature.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Multidisciplinary
Jinmeng Zhu, Jinghan Ding, Yuke Li, Qi Wang, Fan Yang, Cong Jia, Yaxu Zhang, Xichen Zhao, Wenqiang Dong, Jia Wang, Zhiyong Lu, Xuanhua Li
Summary: After years of research, nanolime (NL) has emerged as a potential alternative for the conservation of cultural heritage. However, its poor kinetic stability in water has been a major challenge. This study successfully achieved water dispersion of NL by modifying an ionic liquid (IL). The IL binds to NL particles and significantly alters their morphology and size, resulting in excellent kinetic stability and improved penetration depth. This research contributes to the field of NL-related materials and enhances their utilization in preserving water-insensitive cultural heritage.
Article
Computer Science, Artificial Intelligence
Yue Wang, Xu Jia, Lu Zhang, Yuke Li, James H. Elder, Huchuan Lu
Summary: RGB-D saliency detection combines RGB images and depth maps to improve the prediction of salient regions. A transformer-based structure is proposed to fully integrate information at multiple scales and modalities. Experimental results show that the proposed network outperforms state-of-the-art methods in terms of performance and efficiency.
PATTERN RECOGNITION
(2023)
Article
Materials Science, Multidisciplinary
Wen -He Jiao, Shaozhu Xiao, Wei Liu, Yi Liu, Hang-Qiang Qiu, Keqi Xia, Shaolong He, Yuke Li, Guang-Han Cao, Xiaofeng Xu
Summary: Topological quantum materials, especially those with low dimensionality, have attracted significant attention in the field of condensed-matter physics due to their rich implications for topological physics and potential applications in next-generation spintronic devices. In this study, we investigated the crystal growth, magnetotransport properties, Hall effect, and quantum de Haas-van Alphen (dHvA) oscillations of a quasi-one-dimensional ternary telluride NbNiTe5. We observed pronounced dHvA oscillations with three major frequencies under a magnetic field, indicating the presence of holelike Fermi surface sheets formed by two different bands.
