Cyanamide-derived non-precious metal catalyst for oxygen reduction

被引：127

作者：

Chung, Hoon T. ^{[1
]}

Johnston, Christina M. ^{[1
]}

Artyushkova, Kateryna ^{[2
]}

Ferrandon, Magali ^{[3
]}

Myers, Deborah J. ^{[3
]}

Zelenay, Piotr ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA

[2] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

[3] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 12期

关键词：

Polymer electrolyte fuel cell; Oxygen reduction reaction; Non-precious metal catalyst; PEM FUEL-CELLS; NITROGEN; ELECTROLYTE; PYROLYSIS;

D O I：

10.1016/j.elecom.2010.10.027

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Cyanamide was used in the preparation series of metal-nitrogen-carbon (M-N-C) oxygen reduction catalysts. The best catalyst, treated at 1050 degrees C, shows good performance versus previously reported non-precious metal catalysts with an OCV similar to 1.0 V and a current density of 105 mA/cm(2) (iR-corrected) at 0.80 V in H-2/O-2 fuel cell testing (catalyst loading: 4 mg cm(-2)). Although nitrogen content has been previously correlated positively with ORR activity, no such trend is observed here for any nitrogen type. The combined effects of nitrogen and sulfur incorporation into the carbon may account for the high activity of the 1050 degrees C catalyst. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1792 / 1795

页数：4

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