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

页码：89771 / 89776

页数：6

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