Immobilization of a Metal-Nitrogen-Carbon Catalyst on Activated Carbon with Enhanced Cathode Performance in Microbial Fuel Cells

被引：107

作者：

Yang, Wulin ^{[1
]}

Logan, Bruce E. ^{[1
]}

机构：

[1] Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16802 USA

来源：

CHEMSUSCHEM | 2016年 / 9卷 / 16期

关键词：

air cathode; electrochemistry; microbial fuel cell; oxygen reduction reaction; supported catalysts; OXYGEN REDUCTION REACTION; AIR-CATHODE; POWER-GENERATION; ELECTROCATALYTIC ACTIVITY; DIFFUSION LAYER; DOPED GRAPHENE; LOW-COST; IRON; ELECTRICITY; SITES;

D O I：

10.1002/cssc.201600573

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Applications of microbial fuel cells (MFCs) are limited in part by low power densities mainly due to cathode performance. Successful immobilization of an Fe-N-C co-catalyst on activated carbon (Fe-N-C/AC) improved the oxygen reduction reaction to nearly a four-electron transfer, compared to a twoelectron transfer achieved using AC. With acetate as the fuel, the maximum power density was 4.7 +/- 0.2Wm(-2), which is higher than any previous report for an air-cathode MFC. With domestic wastewater as a fuel, MFCs with the Fe-N-C/AC cathode produced up to 0.8 +/- 0.03Wm(-2), which was twice that obtained with a Pt-catalyzed cathode. The use of this Fe-N-C/AC catalyst can therefore substantially increase power production, and enable broader applications of MFCs for renewable electricity generation using waste materials.

引用

页码：2226 / 2232

页数：7

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