公开(公告)号：US20230234851A1

公开(公告)日：2023-07-27

申请号：US17894040

申请日：2022-08-23

申请人： Northwest Minzu University

发明人： Qiong SU ,  Yanbin WANG ,  Zhaoxia LI ,  Dian WANG ,  Shaofeng PANG ,  Shuhe KANG ,  Xiangfei ZHAO ,  Shuai WEI ,  Xiaoting XI ,  Yu TIAN ,  Qing WANG ,  Qi CHEN ,  Zhongxu WANG ,  Lichun LIANG ,  Lihui KANG ,  Shijun CAO

IPC分类号： C01B32/05 ,  H01G11/34 ,  H01G11/24

CPC分类号： C01B32/05 ,  H01G11/24 ,  H01G11/34 ,  C01P2006/12 ,  C01P2006/16 ,  C01P2006/40 ,  C01P2006/80

摘要： A boron-sulfur-codoped porous carbon material and a preparation method is disclosed. The boron-sulfur-codoped porous carbon material includes a porous carbon, and B and S doped in the surface and pores of the porous carbon; where B has a doping content of 5.56 wt.% to 7.85 wt.%, and S has a doping content of 0.90 wt.% to 1.55 wt.%. Test results of examples show that the boron-sulfur-codoped porous carbon material has high doping contents of B and S, and abundant pores; in a three-electrode system, the material shows a maximum specific capacitance of 168 F·g- 1 to 290.7 F·g-1 at 0.5 A·g-1; after the material is assembled into a symmetrical supercapacitor, the supercapacitor has an ultra-high energy density of 11.3 Wh·kg-1 to 16.65 Wh·kg-1 in a neutral electrolyte system, and has a capacitance retention rate of 97.09% to 100.67% after 10,000 life tests.