Article
Chemistry, Multidisciplinary
Xilan Feng, Dapeng Liu, Baolin Yan, Mingzhe Shao, Zhimin Hao, Guobao Yuan, Haohan Yu, Yu Zhang
Summary: By triggering the aqueous auto-redox reactions between reductive Ce(OH)(3) and oxidative MnO4-/Pd2+ ions, PdO/Mn3O4/CeO2 (PMC) nanocomposites were formed, showing strong synergistic effects. The HPMC nanocomposites exhibited excellent performance in photoassisted thermal catalytic CH4 combustion, with a reduced light-off temperature of 180 degrees C under visible light irradiation. The catalytic reaction process followed the classic MVK mechanism, with O-2 adsorption/activation into active oxygen species (O*) being the rate-determining step for CH4 conversion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Energy & Fuels
Chunli Guo, Huaiyan Wang, Yanzhen Liu, Yuyu Zhang, Suxia Cui, Zhen Guo, Canliang Ma
Summary: 1D/2D homo-orientation Co3O4/NiCo2O4 composites were vertically synthesized on nickel foam, showing excellent performance characteristics such as good rate capability, long-term cycling stability, high energy density, and power density.
Article
Chemistry, Physical
Qiuyan Shen, Shuo Zhou, Feng-Lei Yang, Xiaojun Wang, Xiguang Han
Summary: In this article, a tubular-hexagonal beta (beta)-In2S3/In2O3 heterojunction with a porous shell encapsulated by N-doped carbon was prepared under a controlled sulfidation before the annealing treatment. The intimate contact between In2O3 and In2S3 is guaranteed, and the separation efficiency of photogenerated carriers is improved by coating with N-doped carbon. Experimental results show that this material exhibits high efficiency, good recyclability, and excellent functional-group tolerance in photocatalyzing the coupling of amines to imines.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Yafen Tian, Xiangyu Zhu, Muhammad Abbas, Daniel W. Tague, John P. Ferraris, Kenneth J. Balkus
Summary: In this study, two-dimensional mesoporous hexagonal carbon sheets (MHCSs) were prepared using mesoporous Mg(OH)(2) hexagonal sheets as a template and acetylene gas as the carbon precursor. The MHCSs exhibited high specific surface area and a hierarchical microporous-mesoporous structure, enabling rapid ion transport and superior electrochemical performance.
Article
Chemistry, Multidisciplinary
Ya Feng, Henan Li, Taiki Inoue, Shohei Chiashi, Slava Rotkin, Rong Xiang, Shigeo Maruyama
Summary: The synthesis of one-dimensional van der Waals heterostructures enables new possibilities in electronics and optoelectronics, with different electrical characteristics induced by natural doping in semiconducting single-walled carbon nanotubes and molybdenum disulfide. Assembling semiconducting single-walled carbon nanotubes, insulating boron nitride nanotubes, and semiconducting molybdenum disulfide nanotubes creates a radial semiconductor-insulator-semiconductor heterojunction. Application of opposite potential polarity on these nanotubes leads to a rectifying effect.
Article
Chemistry, Multidisciplinary
Liting Yang, Jing Zheng, Jingli Xu, Baishun Zhang, Min Zhang
Summary: A facile approach for preparing Fe3O4@SiO2@C/Ni microtubes is reported, which serve as catalyst and adsorbent. The coating of SiO2 and PDA-Ni2+ layers and removal of MoO3 cores are easily achieved simultaneously in ammonia solution with a one-step reaction. The resulting hybrid microtubes exhibit catalytic reduction towards 4-NP and highly selective adsorption on BHb, with good cyclic stability.
Article
Multidisciplinary Sciences
Xuanzhang Li, Yang Wei, Zhijie Wang, Ya Kong, Yipeng Su, Gaotian Lu, Zhen Mei, Yi Su, Guangqi Zhang, Jianhua Xiao, Liang Liang, Jia Li, Qunqing Li, Jin Zhang, Shoushan Fan, Yuegang Zhang
Summary: A 1D semimetal-2D semiconductor contact using single-walled carbon nanotube electrodes is able to achieve contact lengths in the sub-2 nm region, with smaller van der Waals gaps and tunable Schottky barrier heights via gate potential for Ohmic contact. The study presents a basis for further miniaturization of nanoelectronics.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Beiyang Guo, Jianfeng Ma, Yichao Shi, Kewen Zheng, Minghong Wu, Guofa Ren, Sridhar Komarneni
Summary: A Co3O4/CoO catalyst system activated with bisulfite was established for efficient methylene blue degradation. The material was characterized and showed promising results in both degradation and magnetic separation abilities. This novel system may serve as a new approach for wastewater treatment.
CERAMICS INTERNATIONAL
(2021)
Article
Mathematics, Applied
Shuang Li, Lianhe Li
Summary: This study presents the explicit expression of Eshelby tensors for one-dimensional hexagonal quasicrystal composites using Green's function method, providing closed forms for various inclusion shapes in the matrices. Utilizing these tensors, analytical expressions for the effective properties of the composites are derived based on the Mori-Tanaka method, with discussions on the effects of inclusion volume fraction on composite materials' elastic properties.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2021)
Article
Chemistry, Physical
Yan Chen, Xuewei Su, Mingliang Ma, Yongbo Hou, Chenggang Lu, Fei Wan, Yong Ma, Zilong Xu, Qinghao Liu, Mengyuan Hao, Ronglan Pan, Yi Liu
Summary: Novel one-dimensional magnetic flower-like CoFe2O4@Bi2WO6@BiOBr composite photocatalysts were prepared and characterized. The photocatalysts exhibited excellent photocatalytic efficiency and stability. The possible mechanism of the photocatalytic degradation process was proposed based on experimental results.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Mathematics, Applied
Xin Zhang, Minghao Zhao, Cuiying Fan, C. S. Lu, Huayang Dang
Summary: In this paper, the three-dimensional interfacial fracture in a one-dimensional hexagonal quasicrystal coating structure is analyzed. The study focuses on a planar interface crack with arbitrary shape using the displacement discontinuity method and proposes a boundary element method for numerical simulation. Stress intensity factors and energy release rates are determined, and the effects of influencing factors on the fracture behavior are discussed. The findings are important for understanding and predicting the fracture behavior of coating structures.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2022)
Article
Engineering, Environmental
Duong Dinh Tuan, Hongta Yang, Nguyen Nhat Huy, Eilhann Kwon, Ta Cong Khiem, Siming You, Jechan Lee, Kun-Yi Andrew Lin
Summary: This study aimed to construct a novel porous heterogeneous catalyst using sodium borohydride for reducing bromate, achieving complete reduction within 20 minutes. The resulting catalyst, HPCO, showed remarkable catalytic activities and reusability over multiple cycles, indicating its effectiveness for bromate reduction in water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Duyu Chen, Yu Liu, Yu Zheng, Houlong Zhuang, Mohan Chen, Yang Jiao
Summary: This work extends the concept of disorder hyperuniformity to quasi-one-dimensional materials like carbon nanotubes, and quantifies density fluctuations in amorphous carbon nanotubes with randomly distributed Stone-Wales defects. The study finds that all of these amorphous nanotubes exhibit hyperuniformity, regardless of their properties, and that they are energetically more stable than metallic nanotubes as more defects are introduced.
Article
Mechanics
Xin Zhang, CuiYing Fan, Chunsheng Lu, MingHao Zhao, HuaYang Dang
Summary: Based on the displacement and temperature discontinuity boundaries, the three-dimensional fracture behavior of an interface crack in a one-dimensional hexagonal quasi-crystal coating under thermal-mechanical loads is investigated. The fundamental solutions for interfacial displacement and temperature discontinuities are derived using the Hankel transform technique, and the corresponding boundary integral-differential equations are constructed. A boundary element method is proposed based on the derived Green's functions with uniform discontinuities over a ring element. The effects of material mismatch, coating thickness, crack size, and applied loads on the fracture behavior are discussed through numerical case studies.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Chemistry, Multidisciplinary
Yoo Sang Jeon, Bum Chul Park, Min Jun Ko, Jun Hwan Moon, Eunjin Jeong, Young Keun Kim
Summary: The study demonstrates a facile strategy and fabrication mechanism to synthesize nanotubes or nanocoils by selecting specific additives, providing a promising approach for preparing desired nanostructures. The addition of L-ascorbic acid allows for the regulation of nanostructure morphology, while vanadyl ascorbate plays a key role in surface conduction and structure assembly.
Review
Chemistry, Multidisciplinary
Zhihong Zhang, Xiaonan Yang, Kaihui Liu, Rongming Wang
Summary: Two-dimensional (2D) materials with special crystal structure exhibit unique properties, making them promising in fields such as electronics and optoelectronics. To realize their applications, especially in integrated devices, the growth of large-size single crystals is necessary. Epitaxy, specifically the growth of 2D materials with specific orientations on single-crystal substrates, is the most feasible way to achieve this. The lattice symmetry relation and interaction between 2D materials and the substrate determine the epitaxy behaviors, which are systematically discussed in this article. Opportunities and challenges for the epitaxy of 2D single crystals in the future are summarized.
Article
Chemistry, Multidisciplinary
Wenrui Li, Haofei Zhao, Hao Li, Rongming Wang
Summary: Efficient and low-cost Fe-doped NiS nanosheets grown on conductive carbon fiber paper were fabricated through a two-step hydrothermal process for enhanced oxygen evolution reaction (OER) performance. The Fe-NiS@CFP catalyst exhibited superior electrocatalytic activity with low internal and interface charge-transfer resistance, leading to an overpotential of 275 mV at 100 mA cm(-2) and stable performance for at least 50 hours as an OER electrode. This work provides insights into the design and fabrication of non-noble metal sulfide electrocatalysts.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Physical
Aixian Shan, Xueai Teng, Yu Zhang, Pengfei Zhang, Yingying Xu, Chengrang Liu, Hao Li, Huanyu Ye, Rongming Wang
Summary: This study synthesizes Pt nanoparticles decorated on MoS2 nanosheets and demonstrates their enhanced electrocatalytic activity and stability through electronic structure modulation, resulting in lower overpotential and smaller Tafel slope.
Article
Chemistry, Multidisciplinary
Xiaofang Zhang, Dongliang Tian, Feng Yang, Haofei Zhao, Woon-Ming Lau, Rongming Wang
Summary: This study demonstrates a strategy for the controllable synthesis of graphite shells (GSs) and carbon nanotubes (CNTs) by regulating the interface interaction via in situ pyrolysis. The results show that the growth modes and catalyst nanoparticle size of carbon nanostructures vary with temperature.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jiatian Fu, Liyun Zhao, Liang Zhou, Kang Wu, Jiaxing Du, Xiangzhuo Wang, Jiepeng Song, Lijie Zhu, Fan Zhou, Yahuan Huan, Lihong Bao, Rongming Wang, Qing Zhang, Yanfeng Zhang
Summary: This study reports the large-area uniform growth of monolayer, bilayer, and few-layer 1T-SnSe2 single-crystal flakes on mica substrates via chemical vapor deposition. The feeding amount of Sn precursor and flow rate of hydrogen carrier were found to be crucial parameters for the thickness-controlled growth. Furthermore, the study discovered that 1T-SnSe2 exhibits clear second harmonic generation, with its intensity showing a linear dependence on thickness.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Pengfei Zhang, Hongmei Qiu, Huicong Li, Jiangang He, Yingying Xu, Rongming Wang
Summary: This study investigates the microscopic mechanism of OER on the surface of Ni12P5 using computational and simulation methods. It reveals that the nonmetallic P atom serves as the active site, and the dissociation process occurs stepwise. The rate-determining step of OER on Ni12P5 is the formation of the OOH group, leading to the lowest overpotential and enhanced catalytic activity compared to other nickel phosphides. Furthermore, the charge of Ni and P sites has a linear relationship with the adsorption energy of OH and O, which can be utilized for optimizing OER catalysts.
Article
Chemistry, Multidisciplinary
Tianyu Xia, Kai Zhao, Youqi Zhu, Xiaoyan Bai, Han Gao, Ziyu Wang, Yue Gong, Menglin Feng, Shunfang Li, Qiang Zheng, Shouguo Wang, Rongming Wang, Haizhong Guo
Summary: Mixed-dimensional Pt-Ni alloy polyhedral nanochains were fabricated to address the unbalanced relationship between activity and stability in Pt nanocatalysts. These nanochains exhibited significantly enhanced mass activity for methanol oxidation reaction and improved stability against CO poisoning. Additionally, they achieved a higher half-wave potential for oxygen reduction reaction.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Haofei Zhao, Yuchen Zhu, Huanyu Ye, Yang He, Hao Li, Yifei Sun, Feng Yang, Rongming Wang
Summary: Nanocrystals play a crucial role in material sciences and industry. Designing nanocrystals with desired structures and properties is a major challenge that requires a deep understanding of atomic-scale dynamics. In situ transmission electron microscopy (TEM), especially environmental TEM, has provided valuable insights into nanocrystals. This comprehensive review highlights the progress in the understanding of nanocrystal dynamics, including nucleation and growth, structure evolution, and dynamics in reaction conditions.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yange Wang, Yechen Wang, Jing Bai, Sibin Duan, Rongming Wang, Woon-Ming Lau
Summary: In this study, a hierarchical TA-Fe@Ni-WOx structure was synthesized by interfacial coordination assembly, which showed enhanced catalytic activity for the oxygen evolution reaction. The introduction of Fe ion-chelated tannic acid improved the electronic structure of Ni-WOx, resulting in low over-potentials and excellent OER performance in alkaline electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yadi Cao, Yinghui Sun, Huanhuan Yang, Liang Zhou, Qianming Huang, Jiajie Qi, Pengfei Guan, Kaihui Liu, Rongming Wang
Summary: In this study, the directional migration and structural evolution of Au nanoparticles on anisotropic ReS2 were investigated using aberration-corrected transmission electron microscopy. It was found that Au nanoparticles with diameters below 3 nm preferentially migrate along the b-axis direction. Density functional theory calculations revealed that the lower diffusion energy barrier enables the directional migration. The coalescence kinetics of Au nanoparticles were quantitatively described using the relationship r(2) = Kt. This work provides an atomic-resolved dynamic analysis method for studying the interfacial structural evolution of metal/2D materials, which is crucial for understanding the stability of nanodevices based on mixed-dimensional nanomaterials.
Article
Materials Science, Multidisciplinary
Yu Zhang, Xue-Ai Teng, Ze-Qun Ma, Rong-Ming Wang, Woon-Ming Lau, Ai-Xian Shan
Summary: A novel synthesis strategy for FeOOH hollow tubes with one-dimensional and hollow features was proposed and successfully implemented. The FeOOH scaly hollow tubes exhibited outstanding catalytic activity, low Tafel slope, and robust stability as oxygen evolution reaction catalysts. This work enhances the feasibility to broaden the design ideas of transition metal-based catalysts.
Article
Chemistry, Multidisciplinary
Xiaoyan Bai, Tianqi Cao, Tianyu Xia, Chenxiao Wu, Menglin Feng, Xinru Li, Ziqing Mei, Han Gao, Dongyu Huo, Xiaoyan Ren, Shunfang Li, Haizhong Guo, Rongming Wang
Summary: Constructing a heterogeneous interface using different components is an effective way to achieve the bifunctionality of nanocatalysts, and synergistic interactions between multiple interfaces can optimize the performance of single-interface nanocatalysts. A multiple-interfaced sandwich-like nanostructure MoS2/NiSe2/reduced graphene oxide (rGO) is prepared, showing excellent catalytic performance in water splitting reactions. Assembled into a modified two-electrode system, the nanostructures exhibit an overpotential even exceeding that of noble metal nanocatalysts.
Article
Chemistry, Physical
Xiaodan Wang, Yao Lu, Rui Li, Dongsheng Ren, Xiaoyue Wang, Chunxue Liu, Rongming Wang, Xiang Hu, Zhenhai Wen, Xiangming He
Summary: This study reports a superlattice Zn3V2O7-C as a conversion-type cathode material for AZIBs, which exhibits high capacity and long-term stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuan Ma, Yongqing Chen, Tao Guo, Hong-Hui Wu, Rongming Wang, Yang He, Luning Wang, Lijie Qiao
Summary: In this study, the atomic shuffling mechanism during twinning nucleation in rhenium nanocrystals was analyzed using in situ high-resolution transmission electron microscopy. It was found that the double-layered prismatic planes initially shuffle into single-layered BCT planes, and subsequently adjacent BCT planes shuffle in opposite directions to form the basal planes of the twin embryo. Molecular dynamic simulations further confirmed this shuffling mechanism. These findings provide direct evidence of shuffle-dominated twinning nucleation with atomic details, which may contribute to better control of this critical twinning mode in HCP metals.
Article
Chemistry, Multidisciplinary
Shiyu Zhu, Yun Liu, Yue Gong, Yuting Sun, Kang Chen, Yuan Liu, Weidi Liu, Tianyu Xia, Qiang Zheng, Han Gao, Haizhong Guo, Rongming Wang
Summary: PtCo@PtIr nanoparticles with a quasi-octahedral PtCo nanocrystal core and an ultrathin PtIr atomic layer shell are successfully designed and fabricated. With their unique geometric and core-shell features, the PtCo@PtIr nanoparticles exhibit significantly higher mass and specific activities as an ORR catalyst compared to a commercial Pt/C catalyst, and show extraordinary durability. Furthermore, when evaluated with the ORR-OER dual reaction, the PtCo@PtIr nanoparticles demonstrate a small ORR-OER overpotential gap, indicating their great potential as a bifunctional electrocatalyst for fuel cell applications.
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.
