Porous nitrogen-doped carbon nanosheet on graphene as metal-free catalyst for oxygen reduction reaction in air-cathode microbial fuel cells

被引：88

作者：

Wen, Qing ^{[1
]}

Wang, Shaoyun ^{[1
]}

Yan, Jun ^{[1
]}

Cong, Lijie ^{[1
]}

Chen, Ye ^{[1
]}

Xi, Hongyuan ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

BIOELECTROCHEMISTRY | 2014年 / 95卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Microbial fuel cells; Nitrogen-doped carbon; Oxygen reduction reaction; HIGH ELECTROCATALYTIC ACTIVITY; CHALLENGES; NANOTUBES; PLATINUM; ARRAYS;

D O I：

10.1016/j.bioelechem.2013.10.007

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Porous nitrogen-doped carbon nanosheet on graphene (PNCN) was used as an alternative cathode catalyst for oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). Here we report a novel, low-cost, scalable, synthetic method for preparation of PNCN via the carbonization of graphite oxide-polyaniline hybrid (Go-PANI), subsequently followed by KOH activation treatment. Due to its high concentration of nitrogen and high specific surface area, PNCN exhibited an excellent catalytic activity for ORR. As a result, the maximum power density of 1159.34 mW m(-2) obtained with PNCN catalyst was higher than that of Pt/C catalyst (858.49 mW m(-2)) in a MFC. Therefore, porous nitrogen-doped carbon nanosheet could be a good alternative to Pt catalyst in MFCs. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：23 / 28

页数：6

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