Article
Mechanics
Shi Tang, Qing Li, Yue Yu
Summary: In this paper, droplet jumping on V-shaped groove superhydrophobic surfaces induced by coalescence was numerically investigated using a three-dimensional multiphase lattice Boltzmann model. It was found that the self-jumping process becomes inefficient as the groove angle decreases due to increased viscous dissipation. An improved V-shaped superhydrophobic surface with a triangular prism was proposed to enhance droplet jumping performance. Numerical results showed significantly increased jumping velocity and energy conversion efficiency, up to 80% and 210% respectively, compared to the surface without the triangular prism. The enhancement was attributed to the redirection of the expanding liquid bridge by the V-shaped sidewalls and the earlier and sufficient impact of the liquid bridge on the triangular prism in the groove. The improved V-shaped superhydrophobic surface also allowed for guided jumping and more accurate prediction of the jumping angle based on the groove angle.
Article
Optics
Senyu Wang, Yiwei Ma, Xiaoyang Li, Yang Yi, Cuiting Sun, Jingyu Lin, Chengguo Tong, Yuxiang Li, Tao Geng, Weimin Sun, Libo Yuan
Summary: The proposed optical fiber sensor utilizes a triangular-prism-shaped long-period fiber grating to measure torsion with high sensitivity. The unique design of the triangular-shaped structure breaks rotational symmetry and provides the sensor with stability and linearity in torsion response. With a torsion sensitivity of 0.54 nm/(rad/m), this sensor shows promise as a highly sensitive torsion sensor.
CHINESE OPTICS LETTERS
(2021)
Article
Crystallography
Weiqiang Cheng, Yilian Xiong, Lijuan Ding, Haolin Li, Jiahao Yang, Mingming Zhu, Jianjun Chen, Guojun Zhang
Summary: Graphene-coated SiC nanowires were successfully fabricated by SiC epitaxial growth method. Firstly, centimeter-scale single crystal SiC nanowires were synthesized through carbothermal reduction method. Secondly, epitaxial graphene was grown on the surface of SiC nanowires in a high vacuum and high-temperature environment, resulting in graphene-coated pearl-chain-shaped SiC nanowires. The graphene layer coated on the surfaces of SiCnanowires and the formation of beta-SiC particles were observed. The graphene-coated pearl-chain-shaped SiCnanowires have potential applications in ceramic reinforcement, optoelectronics, mid-infrared and EM wave absorption devices.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Chemistry, Physical
Pengchao Kang, Qiqi Zhao, Tien Zhang, Wei Xue, Jinrui Qian, Zengyan Wei, Pingping Wang, Gaohui Wu
Summary: In this study, heterostructured SiC nanowires with varying contents of 3C-, 2H-, and 6H-SiC were synthesized using a simple thermal evaporation method. The content of the SiC crystal phases was regulated by adjusting the raw materials and reaction temperature. The prepared SiC nanowires had a mixed structure composed of a 3C-SiC matrix embedded with 2H-SiC and 6H-SiC nanosegments, which enhanced their electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Guanglei Zhong, Xuejian Xie, Desheng Wang, Xinglong Wang, Li Sun, Xianglong Yang, Yan Peng, Xiufang Chen, Xiaobo Hu, Xiangang Xu
Summary: A novel Al doping method using p-type SiC powder was proposed for the growth of p-type SiC crystals. The continuity and utilization rate of Al element were greatly improved by using p-type SiC powder, leading to a significant reduction in resistivity and improvement in resistivity uniformity of the crystals.
Article
Materials Science, Multidisciplinary
Z. Cheng, W. Lu, J. Shi, D. Tanaka, N. H. Protik, S. Wang, M. Iwaya, T. Takeuchi, S. Kamiyama, I. Akasaki, H. Amano, S. Graham
Summary: This study investigated the temperature-dependent thermal conductivity of doped epitaxial 6H-SiC and monocrystalline porous 6H-SiC below room temperature using time-domain thermoreflectance, revealing strong quasi-ballistic thermal transport. Doping and structural boundaries were applied to tune the quasi-ballistic thermal transport, with observations on the selective scattering effects of nitrogen and boron dopants on phonon transport.
MATERIALS TODAY PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
M. Gloginji, M. Erich, M. Kokkoris, E. Liarokapis, S. Fazinic, M. Karlusic, K. Tomic, Luketic S. Petrovic
Summary: This article focuses on introducing crystal lattice damage in 6H-SiC through ion implantation, similar to what neutron exposure would produce. Various techniques including Elastic Backscattering spectra, micro-Raman and scanning electron microscopy were used for investigating and analyzing crystal damage profiles, showing good consistency among the results obtained from different techniques.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Physical
Bangxiao Mao, Xisheng Xia, Chunhui Li, Xiaofei Zhang, Wei Liu, Guosheng Gao
Summary: The bamboo-shaped SiC nanowires reinforced SiC dense coating was successfully designed on the graphite surface by polymer pyrolysis chemical vapor deposition combined with chemical vapor deposition. The porous layer prepared with a catalyst solution of 0.1 mol/L and holding time of 2 h was easier for subsequent densification. The dense coating showed better performance compared to the loose coating.
Article
Chemistry, Inorganic & Nuclear
Yu-Ming Guan, Qixia Bai, Zhe Zhang, Tun Wu, Ting-Zheng Xie, Pingshan Wang
Summary: In this study, a truncated triangular prism with D3h symmetry was successfully constructed using a ligand with both cis- and trans-configurations upon coordination with metal. This work provides new ideas and methods for the future synthesis of low-symmetry topological supramolecules.
DALTON TRANSACTIONS
(2023)
Article
Nanoscience & Nanotechnology
Chang Cao, Bingqing Zhang, Shiwei Lin
Summary: Global environmental pollution and energy crisis have raised awareness for the development of environmentally friendly energy sources. ZnO photocatalysts play a key role in hydrogen generation from water splitting. However, the difficulty in preparing p-type ZnO limits its application. Doping of related elements into ZnO can introduce shallow acceptor energy levels and improve light absorption efficiency. P-type ZnO enables the construction of homojunctions and heterojunctions, enhancing photocatalytic water splitting performance. This Perspective discusses recent advances in the fabrication of p-type ZnO and highlights its benefits over n-type ZnO for photocatalytic applications.
Article
Engineering, Environmental
Le Liu, Ruixue Zhang, Jingkang Yao, Xiaowen Xu
Summary: In this study, an allosteric DNA triangular prism that responds to target cells with a folding behavior was engineered. It can output signals via structural change and exhibits fast migration and regulation inside cells. The DNA prism can recognize membrane receptors on target cells and induce a series of reactions, leading to cell apoptosis and reduced cell motility. This allosteric DNA nanostructure may offer new strategies for cancer cell diagnosis and treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qiufa Luo, Jing Lu, Zige Tian, Feng Jiang
Summary: In this study, the interaction between diamond abrasives and the 6H-SiC wafer surface during ultra-precision polishing was analyzed through experiments and molecular dynamics simulations. It was found that controlling material removal uniformity and restricting abrasive cutting depth to tens of nanometers or less can achieve a smooth, scratch-free and almost damage-free wafer surface. These findings provide insights into the importance of controlling material removal uniformity in nanoscale manufacturing processes.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Bing Yang, Haiying Yang, Tianbo Li, Jianming Yang, Ping Yang
Summary: The study demonstrates that growing graphene buffer layer on SiC can reduce interface thermal resistance through defect engineering, and the increase of nucleation areas and bonding of different nucleation zones will also affect heat transfer. Furthermore, a significant decrease in interface thermal resistance can be achieved with the increase in temperature.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Wenxin Tang, Wenqiang Ma, Penglu Yu, Zhifang Zhou, Jinle Lan, Yuan-Hua Lin, Xiaoping Yang
Summary: In this paper, Pb-doped BiCuSeO was prepared to improve the electrical conductivity of BiCuSeO. Adding Te powder and Te nanowires further decreased the thermal conductivity, resulting in optimized thermoelectric performance.
MATERIALS TODAY PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Z. R. Xiao, H. L. Zhu, Q. Wang, Z. Chen, Z. Y. Liu, Y. K. Zhang, Z. J. Yan, Y. F. Shi, N. Zhou, J. J. Li, J. F. Gao, X. Z. Ai, S. S. Lu, W. X. Huang, W. J. Xiong, Z. Z. Kong, J. J. Xiang, Y. Zhang, J. Zhao, J. B. Liu, Y. H. Lu, G. B. Bai, X. B. He, A. Y. Du, H. Yang, T. Yang, Z. H. Wu, J. F. Li, J. Luo, W. W. Wang, T. C. Ye
Summary: We presented and demonstrated vertical C-shaped-channel nanosheet field-effect transistors (VCNFETs) with precise control of both channel thickness and gate length. The VCNFETs were fabricated using high-quality Si/SiGe epitaxy and atomic layer deposition for nanometer-scale process control and self-aligned high-k metal gate (HKMG). The integration flow is compatible with mainstream industry processes and can be easily extended to vertically stacked devices. Perfect subthreshold swing (SS), small drain-induced barrier lowering (DIBL), and large I-ON/I-OFF ratios were achieved for both n-and p-VCNFETs.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Nanoscience & Nanotechnology
Yu Sementsov, Weiyou Yang, K. Ivanenko, S. Makhno, M. Kartel
Summary: The authors developed a method to modify carbon black reinforced rubber by adding multiwall carbon nanotubes (CNTs), which involves pre-forming a mixture of CB and CNT in a liquid, ensuring deagglomeration and uniform distribution before adding it to the rubber composition. The amount and composition of the hybrid nanofiller, as well as the method of CNTs inclusion, are determined by calculation based on specific surface area and particle size ratio. Comparison of predicted values with experimental data demonstrates the high efficiency of the method for rubber compositions with optimal characteristics.
APPLIED NANOSCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Yaqian Dong, Zhi Fang, Weiyou Yang, Bin Tang, Qiao Liu
Summary: This study presents a facile strategy to fabricate amorphous cobalt/nickel sulfide nanoflake arrays as integrated bifunctional electrocatalysts for efficient water splitting. The obtained catalyst exhibits excellent activities for both the oxygen evolution reaction and the hydrogen evolution reaction in alkaline solution. As an anode and a cathode in an alkaline electrolyzer, this catalyst shows low cell voltage and high water splitting current.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Hao Yu, Dongdong Zhang, Huilin Hou, Yu Ma, Zhi Fang, Xianlu Lu, Shang Xu, Ping Hou, Gang Shao, Weiyou Yang, Jie Teng
Summary: In this study, advanced OER/ORR bi-functional catalysts were explored based on foaming-assisted electrospinning. The addition of foaming agent helped prevent the agglomeration of FeCo alloy nanoparticles on N-doped mesoporous carbon nanofibers (FeCo@NCNF). These rationally designed electrocatalysts showed excellent bi-functional electrocatalytic activity with a low reversible overvoltage.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yu Ma, Ding Chen, Dongdong Zhang, Hao Yu, Yapeng Zheng, Weijun Li, Lin Wang, Qiao Liu, Weiyou Yang
Summary: A freestanding air cathode catalyst with exceptional catalytic bifunctions for both ORR and OER has been prepared using a facile and scalable method, showing superior performance compared to single Fe- or N-modulated counterparts and comparable to state-of-the-art Pt/C + RuO2 catalyst. This material exhibits potential applications in advanced energy conversion systems, with higher peak power density, specific capacity, and cycle stability than traditional Pt/C + RuO2-based devices.
Article
Engineering, Environmental
Xiaoqiang Zhan, Yapeng Zheng, Bing Li, Zhi Fang, Hongli Yang, Haitao Zhang, Leyao Xu, Gang Shao, Huilin Hou, Weiyou Yang
Summary: In this study, a rational design approach was adopted to construct Ta3N5/ZnIn2S4 1D/2D heterojunctions, which exhibited enhanced light absorptivity, improved charge separation and transfer, as well as abundant active sites for hydrogen evolution reaction. Under visible-light irradiation, the resulting Ta3N5/ZnIn2S4 heterojunctions showed a significantly higher H-2-production rate compared to pure Ta3N5 nanorods and ZnIn2S4 nanosheets, surpassing the reported Ta3N5-based photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Qing Shi, Hantao Liu, Junfei Liang, Yaohui Zhang, Yaqian Dong, Weiyou Yang, Qiao Liu
Summary: In this work, a one-pot strategy was developed to fabricate NiFe layered double hydroxide nanosheets interconnected by carbon nanofibers, which exhibited enhanced oxygen evolution reaction (OER) catalytic activity and stability. The catalyst showed great potential for cost-efficient water splitting devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Nanchuan Wang, Shibo Guo, Qiaochu Chen, Fengmei Gao, Weiyou Yang, Hui Fu, Jinju Zheng
Summary: The study synthesized a series of Mn2+-doped CsPbCl3 samples with different OAm-Cl contents, finding that the Mn2+ concentration was fixed at 0.65% in the samples and the Mn2+ photoluminescence exhibited an OAm-Cl content-independent lifetime. The excitonic and Mn2+ PL intensities of the NCs were strongly related to the amount of OAm-Cl, with different trends depending on the OAm-Cl content.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Applied
Wenna Liu, Xiaoxiao Li, Weijun Li, Yumin Ye, Hong Wang, Peipei Su, Weiyou Yang, Ya Yang
Summary: In this study, electrodes with robust cycling capacity for supercapacitors were explored by coating conductive PEDOT around free-standing SiC nanowires, achieving high specific capacitance and excellent cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Applied
Kai Song, Fang He, Ergang Zhou, Lin Wang, Huilin Hou, Weiyou Yang
Summary: In this study, a feasible strategy based on in-situ selective surface cation exchange was developed to activate surface water oxidation reactivity of BiVO4 photoanodes, leading to improved surface charge transfer and enhanced photoelectrochemical performance for water oxidation.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Chang Liu, Zhi Fang, Jinsong Sun, Minghui Shang, Kanghui Zheng, Weiyou Yang, Ziyi Ge
Summary: By innovatively designing D-A-D type organic cation as 2D spacer, researchers successfully optimized the structure of 2D perovskite, improving the performance of solar cells and achieving high efficiency.
Article
Materials Science, Multidisciplinary
Yu Ma, Ding Chen, Weijun Li, Yapeng Zheng, Lin Wang, Gang Shao, Qiao Liu, Weiyou Yang
Summary: This study reports the design of a freestanding bifunctional cathode for zinc-air batteries. The cathode is composed of tiny Co nanoparticles embedded in N-doped carbon nanofiber aerogels, offering uniform dispersion, balanced distribution, hierarchically porous structure, and moderate defects. The as-fabricated cathodes exhibit excellent performance, with low oxygen electrode potential and overpotential, high peak power density, large specific capacity, and remarkable stability. Moreover, the as-assembled quasi-solid-state zinc-air batteries show outstanding mechanical flexibility and cycle performance.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Dongdong Zhang, Zhi Fang, Lin Wang, Hao Yu, Xianlu Lu, Kai Song, Jie Teng, Weiyou Yang
Summary: This article reports the synthesis of single-crystalline ZnO nanosheets under ambient conditions and their controllable growth by adjusting the pH values of solutions. The ZnO nanosheets exhibit highly efficient performance in sensing ammonia, with ultrahigh sensitivity, excellent selectivity, rapid detection, and outstanding detection limit.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Chemistry, Physical
Xiaoxiao Li, Jianjun Chen, Shanliang Chen, Weijun Li, Jiahao Yang, Feng Hu, Qiliang Wei, Xinsheng Zhao, Xinfeng Zhang, Weiyou Yang
Summary: This study presents a rationally designed editable and flexible electrode composed of SiC nanowires and carbon nanotubes, which offers excellent mechanical and electrochemical properties for reliable energy storage devices that can operate under wide-temperature harsh conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Correction
Multidisciplinary Sciences
Xianlu Lu, Xuenan Pan, Dongdong Zhang, Zhi Fang, Shang Xu, Yu Ma, Qiao Liu, Gang Shao, Dingfa Fu, Jie Teng, Weiyou Yang
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Qing Shi, Qiao Liu, Yapeng Zheng, Yaqian Dong, Lin Wang, Hantao Liu, Weiyou Yang
Summary: Developed through one-step carbonization of a mixture of ZIF-67 and MPSA, bifunctional ORR/OER electrocatalysts based on CoxP@NPC can be rationally designed and fabricated in a controlled manner. Among these catalysts, Co2P@NPC exhibits the best bifunctional ORR/OER activity, leading to a zinc-air battery with high power density and stability.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
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.
