文献类型：期刊文献

英文题名：Molten salt electrolytic synthesis of porous carbon from SiC and its application in supercapacitors

作者：Zheng, Kai Luo, Wenbo Long, Shaolei Long, Xiao Shi, Cuilian Liu, Pengcheng Li, Jierui Li, Wubin

通信作者：Li, JR[1];Li, WB[2]

机构：[1]Guizhou Inst Technol, Guizhou Key Lab Preparat Light Metal Mat, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Acad Sci, Guiyang 550014, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Guizhou Key Lab Preparat Light Metal Mat, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Acad Sci, Guiyang 550014, Peoples R China.|贵州理工学院;

年份：2023

卷号：13

期号：23

起止页码：15498-15505

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20232314204136);Scopus(收录号：2-s2.0-85161133751);WOS:【SCI-EXPANDED(收录号:WOS:000991910200001)】；

基金：This work was supported by the Guizhou Province Science and Technology Planning Project (No. [2020]1Y220), the Youth Science and Technology Talent Growth Project of Education Department of Guizhou Province, P. R. China (No. [2021]264, [2022]352), the Research Project for High-level Talents of Guizhou Institute of Technology (No. XJGC20190960), the Overseas Talents Selection Fund of Guizhou Province, P. R. China (No. [2020]11).

语种：英文

摘要：Nanoscale porous carbide-derived carbon (CDC) microspheres were successfully synthesized via the electrolysis etching of nano-SiC microsphere powder precursors with a particle diameter of 200 to 500 nm in molten CaCl2. Electrolysis was conducted at 900 degrees C for 14 h in argon at an applied constant voltage of 3.2 V. The results show that the obtained product is SiC-CDC, which is a mixture of amorphous carbon and a small quantity of ordered graphite with a low degree of graphitization. Similar to the SiC microspheres, the obtained product retained its original shape. The specific surface area was 734.68 m(2) g(-1). The specific capacitance of the SiC-CDC was 169 F g(-1), and it exhibited excellent cycling stability (98.01% retention of the initial capacitance after 5000 cycles) at a current density of 1000 mA g(-1).