Nanoscale Research Letters | |
3D CoMoSe4 Nanosheet Arrays Converted Directly from Hydrothermally Processed CoMoO4 Nanosheet Arrays by Plasma-Assisted Selenization Process Toward Excellent Anode Material in Sodium-Ion Battery | |
Shan Zhang1  Jun Yin1  Jing Li1  Junyong Kang1  Binbin Xu2  Yu-Ze Chen3  Teng-Yu Su3  Hsiang-Ju Liao3  Chuan-Hsun Wang3  Shao-Shin Lee3  Yu-Lun Chueh3  Jyun-Hong Chen3  Ding Chou Wu3  Ling Lee3  Yuanfei Ai3  Shu-Chi Wu3  Shin-Yi Tang3  | |
[1] Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Pen-Tung Sah Institute of Micro-Nano Science and Technology/Department of Physics, Xiamen University;College of Chemistry and Chemical Engineering, Xiamen University;Department of Materials Science and Engineering, National Tsing Hua University; | |
关键词: CoMoSe4 nanosheet arrays; CoMoO4 nanosheet arrays; Plasma-assisted selenization; Sodium-ion battery; | |
DOI : 10.1186/s11671-019-3035-6 | |
来源: DOAJ |
【 摘 要 】
Abstract In this work, three-dimensional (3D) CoMoSe4 nanosheet arrays on network fibers of a carbon cloth denoted as CoMoSe4@C converted directly from CoMoO4 nanosheet arrays prepared by a hydrothermal process followed by the plasma-assisted selenization at a low temperature of 450 °C as an anode for sodium-ion battery (SIB) were demonstrated for the first time. With the plasma-assisted treatment on the selenization process, oxygen (O) atoms can be replaced by selenium (Se) atoms without the degradation on morphology at a low selenization temperature of 450 °C. Owing to the high specific surface area from the well-defined 3D structure, high electron conductivity, and bi-metal electrochemical activity, the superior performance with a large sodium-ion storage of 475 mA h g−1 under 0.5–3 V potential range at 0.1 A g−1 was accomplished by using this CoMoSe4@C as the electrode. Additionally, the capacity retention was well maintained over 80 % from the second cycle, exhibiting a satisfied capacity of 301 mA h g−1 even after 50 cycles. The work delivered a new approach to prepare a binary transition metallic selenide and definitely enriches the possibilities for promising anode materials in SIBs with high performances.
【 授权许可】
Unknown