Conversion of straw to nitrogen doped carbon for efficient oxygen reduction catalysts in microbial fuel cells

被引：25
作者：
Liu, Lang [1 ]
Xiong, Qi [1 ]
Li, Chungen [1 ]
Feng, Yan [1 ]
Chen, Shuiliang [1 ]
机构：
[1] Jiangxi Normal Univ, Dept Chem & Chem Engn, Nanchang 330022, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 109期
基金：
中国国家自然科学基金;
关键词：
ROLLING ACTIVATED CARBON; HEAT-TREATMENT AFFECT; AIR-CATHODE; NONNOBLE ELECTROCATALYSTS; HIGH-PERFORMANCE; O-2; REDUCTION; LOW-COST; GRAPHENE; NANOTUBES; POWER;
D O I：
10.1039/c5ra15235f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The exploration of highly-efficient and low-cost oxygen reduction reaction (ORR) catalysts was still a major task for microbial fuel cells (MFCs). Herein, we report the conversion of cheap and widely available biomass to nitrogen-doped carbon (NC) for highly-efficient ORR catalysts in air-cathode MFCs. The NC was prepared from rice straw through a three-step process, including hydrothermal carbonization, freeze drying and heat-treatment in NH3. The NC had a high nitrogen content of 5.57 at% and showed outstanding catalytic activity for ORR. The MFC based on the NC generated a high maximum power density of 2300 mW m(-2), which was much higher than that of the Pt/C.
引用
收藏
页码：89771 / 89776
页数：6
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