Article
Chemistry, Multidisciplinary
Zifang Zhao, Yue Liu, Fang Wan, Shuai Wang, Nannan Zhang, Lili Liu, Anyuan Cao, Zhiqiang Niu
Summary: The NRGO/Co(OH)(2) composite films prepared by a hydrothermal method exhibit excellent conductivity and catalytic activity, which help to improve the performance and cycling life of lithium-oxygen batteries.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Seungman Park, Chae Won Kim, Kyu Sang Lee, Seon Jae Hwang, Yuanzhe Piao
Summary: Developing a facile strategy to enhance the stability of transition metal phosphides for practical applications is important yet challenging. In this study, a densely packed free-standing film consisting of carbon-coated FeP nanoparticles anchored on P-doped graphene was designed. This film showed enhanced electron/ion transport kinetics, improved air stability, and excellent oxidation resistance, enabling stable and high-performance alkali metal-ion batteries.
Article
Chemistry, Physical
Min Yang, Li Liu, Hanxiao Yan, Wen Zhang, Die Su, Jiaxing Wen, Wen Liu, Yiting Yuan, Junfang Liu, Xianyou Wang
Summary: The study successfully synthesized porous nitrogen-doped Sn/C fibers film through simple electrospinning and calcination process, which exhibits outstanding electrochemical performance due to its high electronic conductivity and large porous structure.
APPLIED SURFACE SCIENCE
(2021)
Article
Electrochemistry
Haoqiang Ma, Chenxin Jin, Guojun Xu, Lijun Wen, Chuanbin Tu, Fugen Sun, Yong Li, Lang Zhou, Zhihao Yue
Summary: In this study, a simple method was used to synthesize silicon-carbon composite materials with excellent electrochemical properties. Liquid silicon source and carbon source were combined and processed to obtain a free-standing composite structure, reducing production costs.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Chuanning Yang, Wangchuan Xiao, Shizhao Ren, Qiyong Li
Summary: In this study, a flexible free-standing graphene-Fe2O3 hybrid sheet was successfully fabricated by a novel one-step hydrothermal process. The microstructure and electrochemical performance of the hybrid sheet were characterized using various techniques. The results show that the composite exhibits high initial discharge capacity and reversible capacity, as well as excellent cyclic performance and stability. Therefore, it has great potential as an anode material for lithium-ion batteries.
Article
Energy & Fuels
Xiangxiang Du, Xuejun Shi, Yanling Li, Kesheng Cao
Summary: The N, S-co-doped graphene hydrogel (N/SGH) was prepared using a hydrothermal approach with thiourea as a dopant, followed by the growth of polyaniline (PANI) on its surface. The resulting N/SGH electrode showed enhanced electrochemical performances, and further improvement was achieved by introducing PANI to the composite electrode, leading to high specific capacitance and stable cycle performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jerome Rajendran, Anatoly N. Reshetilov, Ashok K. Sundramoorthy
Summary: A novel hybrid flexible hexagonal boron nitride integrated graphene paper (BN/GrP) with high electrical conductivity and excellent flexibility was successfully fabricated via a simple vacuum filtration method. The paper showed only about 8.7% increase in sheet resistance after 1000 continuous bending cycles, demonstrating good flexibility and stability. Additionally, the BN/GrP exhibited excellent specific capacitance and high power and energy densities, making it a promising candidate for flexible energy-storage systems.
Article
Green & Sustainable Science & Technology
Bishweshwar Pant, Gunendra Prasad Ojha, Jiwan Acharya, Hem Raj Pant, Mira Park
Summary: This paper introduces an eco-friendly process to simplify carbon microfiber fabrication from discarded lokta paper. The lokta paper is transformed into flexible, free-standing, and porous carbon fiber paper through carbonization and activation processes. The activated carbonized lokta paper (ACLP) shows enhanced performance compared to carbonized lokta paper without activation (CLP) in electrochemical tests. A supercapacitor device is assembled using key components from lokta paper, and it exhibits promising performance and durability. This study demonstrates an environmentally friendly approach to make high-performance supercapacitor electrode material from discarded paper.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Qi Cheng, Zhouhong Yin, Zhenxiao Pan, Xinhua Zhong, Huashang Rao
Summary: This study designed and prepared lightweight electrodes without binders and metal current collectors to assemble high energy density Li-S batteries, achieving high sulfur loading and content, thereby improving the cycling and rate performance of the batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yi Sun, Qiujie Wu, Kuanxin Zhang, Yongchao Liu, Xin Liang, Hongfa Xiang
Summary: A novel and facile strategy for fabricating red phosphorus@nitrogen doped graphene/carbon nanotube aerogel (P@NGCA) as a free-standing anode for high energy sodium-ion batteries is proposed. The free-standing P@NGCA anode exhibits outstanding sodium storage performance with a high areal capacity of 3.3 mA h cm(-2) and superior initial Coulombic efficiency of 80%.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yu-wen Hu, Hao Yang, M. -Sadeeq Balogun, Jian Chen
Summary: In this study, the storage mechanism and effect of lithium ion intercalation in Fe2N nanoparticles grown on carbon cloth were systematically investigated using ex-situ characterizations including XRD and XPS. The results confirm the conversion storage mechanism of Fe2N as anode material for LIBs. This study provides valuable insights into Li-ion storage in other transition metal nitrides for LIBs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Tianyan Yang, Lanlan Zuo, Di Lu, Chunman Zheng, Yufang Chen
Summary: This work proposes a high SiO loading and free-standing N-doped composite nanofiber fabric by hybrid electmspinning, carbonization and gel solution impregnation. The 3D hierarchical conductive network enhances the conductivity of both the electrons and ions, and protects the SiO from structure collapse. The composite gains bending resistance and a high specific capacity of similar to 670 mAh.g(-1) at 160 mA.g(-1) after 95 cycles. The composite conductive gel-coated SiO/CNFs fabric provides an effective strategy for flexible lithium-ion batteries.
Article
Chemistry, Physical
Pengyi Lu, Xiao Yan, Xinzhong Wang, Feng Hou, Ji Liang
Summary: The leaf-like cobalt silicate nanosheet/carbon nanotube hybrid film exhibits high initial charge capacity, good rate performance, and excellent cycle performance, making it a promising candidate for LIB/SIB electrodes. The optimized 3D branch-leaf structure and combined effect of capacitance and insertion mechanism contribute to its outstanding performance in practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yu Shao, Fei Chen, Naiqing Ren, Shuo Wang, Junru Wang, Zhaoyin Wen, Chunhua Chen
Summary: In this study, a VN modified porous carbon nanofiber film was designed as a host for loading SeS2 as the cathode material, leading to enhanced Li storage capacity. The conductive porous carbon nanofibers were able to accommodate active SeS2 and accommodate the volume changes. Introducing VN nanoparticles effectively anchored the intermediate species and improved the utilization of SeS2. As a result, the SeS2@VN/CNFs cathode exhibited superior electrochemical performance and good long-term cycling stability in Li-SeS2 batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Bing Yan, Li Feng, Jiaojiao Zheng, Qian Zhang, Yizhou Dong, Yichun Ding, Weisen Yang, Jingquan Han, Shaohua Jiang, Shuijian He
Summary: This study presents a dual-strategy to enhance the performance of cellulose-derived carbon electrodes by combining free-standing nitrogen-doped carbon nano-wire array coating and pore engineering. The designed electrodes possess high specific capacitance and stable performance, making it a promising breakthrough in the field of biomass-based electrodes for supercapacitors.
APPLIED SURFACE SCIENCE
(2023)