Production of S-doped porous graphene via post-treatment with MgSO4 as sulphur source

被引:40
作者
Ma, Xinlong [1 ]
Zhao, Lu [1 ]
Song, Xinyu [2 ]
Zhao, Lei [1 ]
Yu, Zhiqing [1 ]
Xiao, Zhihua [1 ]
Wang, Xuejie [1 ]
Li, Shengping [1 ]
Cao, Yanming [1 ]
Ning, Guoqing [1 ]
Gao, Jinsen [1 ]
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Changping, Peoples R China
[2] Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China
基金
中国国家自然科学基金;
关键词
S-doped porous graphene; Post-treatment methodology; Scalable production; Fluidized bed technique; Capacitive behavior; OXYGEN REDUCTION; ACTIVATED GRAPHENE; CARBON NANOTUBES; ENERGY-STORAGE; LI STORAGE; PERFORMANCE; ELECTROCATALYST; CAPACITY; SUPERCAPACITORS; NANOPARTICLES;
D O I
10.1016/j.cej.2018.11.171
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The introduction of S atoms into graphitic framework of graphene, has been demonstrated as an effective strategy to further enhance the capacitive performance. Nevertheless, the practical application and scalable production of S-doped graphene still remain great challenges because of the employment of toxic and expensive S-containing precursors during the preparation process coupled with harsh operating conditions. Herein, the developed facile post-treatment doping methodology based on the fluidized bed technique is capable of achieving the superior capacitive S-doped porous graphene (SPG) with a high yield and the good porosity of SPG is well-retained. The amount of defects and electronic conductivity of PG have obviously increased after incorporation of S atoms. The excellent capacitive behaviors of SPG in supercapacitors are benefited from the combination of well-developed pore channels and S doping. The post-treatment methodology coupled with fluidized bed technique is promising to open a new way for the mass production of SPG. Additionally, the developed methodology can be employed to prepare arbitrary S-doped carbon materials, such as S-doped porous carbon and S-doped carbon black, demonstrating the good universality.
引用
收藏
页码:801 / 809
页数:9
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