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Main Title: Phosphorus-doped porous carbons as efficient electrocatalysts for oxygen reduction
Author(s): Wu, Jiao
Yang, Zhenrong
Li, Xiaowei
Sun, Qijun
Jin, Chao
Strasser, Peter
Yang, Ruizhi
Type: Article
Language Code: en
Abstract: Efficient electrocatalysts for the oxygen reduction reaction (ORR) play a critical role in the performance of fuel cells and metal–air batteries. In this study, we report a facile synthesis of phosphorus (P)-doped porous carbon as a highly active electrocatalyst for the ORR. Phosphorus-doped porous carbon was prepared by simultaneous doping and activation of carbon with phosphoric acid (H3PO4) in the presence of Co. Both phosphorus and cobalt were found to play significant roles in improving the catalytic activity of carbon for the ORR. The as-prepared phosphorus-doped porous carbon exhibited considerable catalytic activity for the ORR as evidenced by rotating ring-disk electrode studies. At the same mass loading, the Tafel slope of phosphorus-doped porous carbon electrocatalysts is comparable to that of the commercial Pt/C catalysts (20 wt% Pt on Vulcan XC-72, Johnson Matthey) with stability superior to Pt/C in alkaline solutions.
Issue Date: 2013
Date Available: 24-Jun-2016
DDC Class: 540 Chemie und zugeordnete Wissenschaften
530 Physik
Journal Title: Journal of materials chemistry : A, Materials for energy and sustainability
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 1
Issue: 34
Publisher DOI: 10.1039/c3ta11849e
Page Start: 9889
Page End: 9896
EISSN: 2050-7488
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Technische Chemie » Publications

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