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Issue 34, 2015
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Cow dung-derived nitrogen-doped carbon as a cost effective, high activity, oxygen reduction electrocatalyst

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Abstract

N-doped carbon materials are promising metal-free catalysts for the oxygen reduction reaction (ORR) in fuel cells. However, their practical application depends on both significant cost reduction (by using low-cost precursors) and further improvement of their catalytic activity. Herein, we report a low-cost and scalable synthesis procedure to prepare a highly active N-doped carbon ORR catalyst using only cow dung as a source of carbon and nitrogen. The obtained catalyst produced high ORR activity comparable to commercial Pt/C in a 0.1 M KOH solution regarding both ORR onset potential and half-wave potential, and had excellent tolerance to methanol crossover as well as a stable ORR cycling performance. Furthermore, the use of cow dung puts a source of greenhouse gas pollution to good use as an ORR catalyst for clean energy production in fuel cells.

Graphical abstract: Cow dung-derived nitrogen-doped carbon as a cost effective, high activity, oxygen reduction electrocatalyst

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Article information


Submitted
01 Feb 2015
Accepted
11 Mar 2015
First published
11 Mar 2015

RSC Adv., 2015,5, 27112-27119
Article type
Paper
Author version available

Cow dung-derived nitrogen-doped carbon as a cost effective, high activity, oxygen reduction electrocatalyst

Z. Zhang, H. Li, Y. Yang, J. Key, S. Ji, Y. Ma, H. Wang and R. Wang, RSC Adv., 2015, 5, 27112
DOI: 10.1039/C5RA01987G

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