Article
Chemistry, Multidisciplinary
Daojun Zhang, Jingchao Zhang, Jiaqi Li, Chengxiang Li, Yuting Li, Yingying Liu, Renchun Zhang
Summary: Introducing nickel ions to Co9S8 electrode material improves its electronic structure, while the design of mesoporous hollow spheres enhances conductivity and specific capacitance. The NixCo9-xS8 mesoporous hollow spheres synthesized through partial ion-exchange exhibit excellent performance in supercapacitors and Ni/Co-Zn batteries.
Article
Materials Science, Multidisciplinary
Jiyuan Liang, Zhen Wang, Litao Huang, Pan Zou, Xiaolang Liu, Qian Ni, Xinyu Wang, Wenjun Wang, Runming Tao
Summary: A novel nitrogen-doped graphene with different microstructures is synthesized through an in situ interlamination self-assembling method, using in situ formed Fe3(PO4)2 and organoamine as the catalyst and carbon source, respectively. Bubble-like and sheet-like nitrogen-doped graphene are obtained by tuning the alkyl chain length in organoamine, octylamine, and dodecylamine. The as-prepared graphene electrode material exhibits good rate capability and cyclic performance, delivering promising practicality for energy storage applications.
ACS MATERIALS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Meng Guo, Xuyang Li, Xueguo Liu, Huiyan Pan, Keliang Wu, Yan Xue, Bingke Li, Yinghan Cao
Summary: This study fabricated FeCoS2/NG composite as an advanced positive electrode material for supercapacitors with superior electrochemical performance, including high specific capacitance, outstanding cycle stability, and excellent energy density.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Ceramics
Feng Han, Duanzhi Duan, Weixuan Jing, Qian Wu, Bian Tian, Zhongkai Zhang, Junshan Liu, Yu Sun, Zhuangde Jiang
Summary: This study introduces a plasma-assisted treatment strategy to enhance the electrochemical performance of nitrogen-doped graphene fibers, resulting in a significant improvement of the supercapacitor's performance. The plasma treatment increases the specific surface area, tunes hierarchically porous structure, and improves wettability of the NGFs, leading to higher capacitance and energy density. The plasma-treated NGFs exhibit superior rate capability and cyclic performance, making them promising candidates for high-performance and flexible power sources in future wearable electronics.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Rui Liu, Rui Jiang, Yu-Han Chu, Wein-Duo Yang
Summary: In the novel electrode fabrication method, graphene plays a crucial role as a buffer layer enhancing the conductivity of MnO2, leading to excellent electrochemical performance and long cycle life of the electrodes.
Article
Energy & Fuels
Rajaiah Dhilip Kumar, Alagarasan Jagadeesh Kumar, S. Balachandran, Fedor Vasilievich Kusmartsev, Amira Ben Gouider Trabelsi, Fatemah H. Alkallas, S. Nagarani, V. Sethuraman, Byeong-Kyu Lee
Summary: In this study, Ni-doped ZnO nanoflowers with a chrysanthemum-flower-like structure were synthesized using a conventional hydrothermal method. The prepared materials exhibited a hexagonal wurtzite structure, as confirmed by X-ray diffraction. The Ni-doped ZnO nanoflowers showed excellent pseudo-capacitance behavior, achieving a maximum specific capacitance value of 1090 F/g. The fabricated electrode also showed high stability and columbic efficiencies of 101% and 89%, respectively.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Subbukalai Vijayakumar, Ganesh Dhakal, Soo-Hyun Kim, Jintae Lee, Yong Rok Lee, Jae-Jin Shim
Summary: In this study, Zn-Co-S nanostrip cluster arrays were successfully synthesized on Ni foam through a two-step hydrothermal process. These arrays exhibited higher specific capacity and electrochemical performance compared to ZnCo2O4, showcasing their potential for hybrid supercapacitor applications.
Article
Chemistry, Applied
Chuan Yuan, Mao Chen, Kai Zhu, Jun Ni, Shuang Wang, Bin Cao, Shan Zhong, Jingsong Zhou, Shurong Wang
Summary: Three-dimensionally nitrogen-doped interconnected porous carbons were prepared from cost-effective biomasses and utilized as EDLC electrodes, showing excellent capacitive behaviors and cycling stability.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Min Li, Yunyun Luo, Chen Jia, Qiankun Zhang, Guoxi Luo, Libo Zhao, Rabah Boukherroub, Zhuangde Jiang
Summary: In this study, bimetal nickel-cobalt phosphate nanostructures were successfully synthesized on nickel foam for hybrid supercapacitors by a facile one-step electrodeposition method. The optimized NiCoP/NF2 electrode exhibited excellent capacitive performance with high specific capacity, good rate performance, and high coulombic efficiency. The proposed electrodeposition synthesis process and the prepared NiCoP composites show great potential for applications in energy storage technology.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Jiangtao Cai, Liuhua Hou, Chen Chen, Yujin Lan, Yongqiang Dang, Youyu Zhu, Jianlan Zhang, Shiyong Zhao, Yating Zhang
Summary: A novel activated nitrogen-doped hierarchically porous carbon material was synthesized using a simple preparation process. The material exhibits high specific surface area, well-developed pore volume, moderate nitrogen dopant content, and shows excellent performance as a supercapacitor electrode, with high capacitance, good rate performance, high energy density, and cycling stability.
Article
Energy & Fuels
Jiamei Yang, Fuquan Xiong, Hang Wang, Bole Ma, Feng Guo, Yan Qing, Fuxiang Chu, Yiqiang Wu
Summary: In this study, nitrogen-doped lignin-based carbon nanospheres (NCS) were successfully prepared and showed potential applications in supercapacitors. The introduction of nitrogen atoms increased the active site of the materials and improved the capacitance performance.
Article
Physics, Applied
Shilin Wu, Cheng Zhang, Xiaoyang Cui, Shuai Zhang, Qing Yang, Tao Shao
Summary: Heteroatom doping through radio-frequency plasma treatment is shown to be an effective method for simultaneous doping and reduction of graphene oxide, resulting in significantly improved specific capacitances. Nitrogen-doped reduced graphene oxide shows better rate capability compared to boron-doped reduced graphene oxide. The plasma treatment method is more energy-saving and eco-friendly than conventional high-temperature carbonization and wet chemical methods, offering potential for broad applications of incorporating various heteroatoms into graphene lattice.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Energy & Fuels
Zhenxiang Zhu, Zhenxing Wang, Zhaohu Ba, Jie Dong, Qinghua Zhang, Xin Zhao
Summary: A three-dimensional N- and S-doped holey graphene hydrogel was prepared to achieve optimized pore structure and high conductivity for high performance supercapacitor electrodes. The binder-free electrode exhibited excellent gravimetric and volumetric capacitance, retaining a high percentage of original capacitance after numerous cycles, showcasing great potential for practical applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Electrochemistry
Jin Chang, Xindong Du, Jing Feng
Summary: In this study, Co doped Ni(OH)2 and NiOOH array structure were synthesized using a hydrothermal method. The use of vertical hanging Ni foam provided sufficient reaction sites to ensure the full growth of the array structure, resulting in a large mass loading of active materials. The presence of embedded CH3COO- and strong electron exchange between Ni(OH)2 or NiOOH and Ni facilitated efficient ion and electron transport, leading to improved capacitive and rate performance of the material.
ELECTROCHIMICA ACTA
(2023)
Article
Energy & Fuels
Bing Bai, Linlin Qiu, Yongfeng Yuan, Lixin Song, Jie Xiong, Pingfan Du
Summary: This study presents a strategy to enhance the electrochemical performance of fiber electrodes by constructing nitrogen-doped siloxene/graphene composites. The composites demonstrate a synergistic effect for enhancing ion diffusion and offer flexibility. The nitrogen-doped siloxene/graphene hybrid fibers show remarkable electrochemical performance and exceptional mechanical flexibility for fiber-based supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Guangsheng Luo, Haifu Huang, Chenglong Lei, Zhenzhi Cheng, Xiaoshan Wu, Shaolong Tang, Youwei Du
APPLIED SURFACE SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
Guangsheng Luo, Haifu Huang, Zhenzhi Cheng, Chenglong Lei, Xiaoshan Wu, Shaolong Tang, Youwei Du
FUNCTIONAL MATERIALS LETTERS
(2017)
Article
Electrochemistry
Cheng Zhang, Chenglong Lei, Chao Cen, Shaolong Tang, Mingsen Deng, Yuliang Li, Youwei Du
ELECTROCHIMICA ACTA
(2018)
Article
Chemistry, Physical
Haifu Huang, Zhenzhi Cheng, Chenglong Lei, Shaolong Tang, Youwei Du
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
Guangsheng Luo, Haifu Huang, Zhenzhi Cheng, Chenglong Lei, Xiaoshan Wu, Shaolong Tang, Youwei Du
MATERIALS TECHNOLOGY
(2019)
Article
Engineering, Electrical & Electronic
Junfeng Zhao, Chenglong Lei, Youwei Du
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2019)
Article
Crystallography
Xueyin Song, Chenglong Lei, Wei Zhong
Article
Materials Science, Ceramics
Qing Lin, Chenglong Lei, Jinpei Lin, Yun He, Jianghui Dong, Liping Wang
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Physical
Chenglong Lei, Youwei Du
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Chenglong Lei, Chuannan Ge, Xue Ge, Jin Qian, Youwei Du
Summary: The study explored the effects of ZnO loading on flaky FeSiAl alloys and found that excessive ZnO deposition led to the formation of large nanoparticles and a decrease in saturation magnetization. By controlling the weight ratio of ZnO to FeSiAl, optimal impedance matching and high dielectric loss were achieved, resulting in improved microwave absorption performance. This suggests that low density and semiconductor ZnO composites show promise for future lightweight and high-performance microwave absorption applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Cheng Zhou, Chenglong Lei, Jin Qian, Chuannan Ge, Shaolong Tang, Youwei Du
Summary: Spherical Ag@Ni immiscible alloy powders were successfully fabricated by combining in situ de-wetting and phase separation methods. The effects of temperature and atom ratio on the morphology, structure, and phase separation were investigated.
Article
Materials Science, Multidisciplinary
Chuannan Ge, Chenglong Lei, Bo Wang, Yakun Wang, Zhouhao Peng
Summary: In this study, manganese oxide was fabricated on the surfaces of flaky FeSiAl alloys using hydrothermal method to construct heterogeneous compositions with nanoscale architectures. The research found that the crystal structure of the FeSiAl alloy was not destroyed during the high-temperature hydrothermal growth of Mn3O4. The adjustable morphology of the composites, affected by the loading content of Mn3O4, resulted in nano-sheets or nano-particles. The microwave absorption properties of the composites were also investigated.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Analytical
Pingping Sun, Chenglong Lei, Chuannan Ge, Yunjun Guo, Xingxing Zhu
Summary: This paper presents a compact piezo-inertia actuator with a double rocker-type flexure hinge mechanism, aiming to achieve high speed, high resolution, and low deviation between positive and reverse velocities. The experimental results demonstrate that the designed actuator has a minor speed deviation and good output characteristics.
Article
Chemistry, Multidisciplinary
Chuannan Ge, Chenglong Lei, Bo Wang, Yakun Wang, Zhouhao Peng, Zhitong Wang, Yunjun Guo
Summary: Nanosized spinel ferrites MFe2O4 (M = Mn, Co, Ni, Cu, Zn)-coated flaky FeSiAl alloy composites were successfully synthesized. The nanoferrites preferred to grow into nanoplatelets due to induced or restricted growth on the flaky surface of FeSiAl. The annealing temperature affected the nanosized morphology, coating, and magnetic properties of the composites.
Article
Physics, Condensed Matter
Chuannan Ge, Chenglong Lei, Bo Wang, Zhouhao Peng, Zhitong Wang, Xue Ge
Summary: Magnetite nanosheet coated flaky FeSiAl alloy composite powder was successfully synthesized and its morphology, composition, crystal structure, magnetism and electromagnetic performance were systematically studied. The saturation magnetization of the composite powder decreased, with the CoFe2O4 coated sample exhibiting the highest saturation magnetization. The complex permittivity and dielectric loss of the composite powder increased, while the magnetic loss decreased.
SOLID STATE COMMUNICATIONS
(2023)