Oxygen reduction activity of N-doped carbon-based films prepared by pulsed laser deposition

被引：15

作者：

Hakoda, Teruyuki ^{[1
]}

Yamamoto, Shunya ^{[1
]}

Kawaguchi, Kazuhiro ^{[2
]}

Yamaki, Tetsuya ^{[1
]}

Kobayashi, Tomohiro ^{[3
]}

Yoshikawa, Masahito ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Gunma 3701292, Japan

[2] Kyoto Inst Technol, Dept Chem & Mat Technol, Sakyo Ku, Kyoto 6068585, Japan

[3] RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan

来源：

APPLIED SURFACE SCIENCE | 2010年 / 257卷 / 05期

关键词：

Fuel cell; Non-platinum cathode catalyst; Oxygen reduction activity; Carbon-based film; Pulsed laser deposition; ELECTROLYTE FUEL-CELLS; C-N; SPUTTER-DEPOSITION; HYDROGEN FUEL; CATALYSTS; FE; PYROLYSIS; STABILITY; MECHANISM; EVOLUTION;

D O I：

10.1016/j.apsusc.2010.08.095

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon-based films with nitrogen species on their surface were prepared on a glassy carbon (GC) substrate for application as a non-platinum cathode catalyst for polymer electrolyte fuel cells. Cobalt and carbon were deposited in the presence of N-2 gas using a pulsed laser deposition method and then the metal Co was removed by HCl-washing treatment. Oxygen reduction reaction (ORR) activity was electrochemically determined using a rotating disk electrode system in which the film samples on the GC substrate were replaceable. The ORR activity increased with the temperature of the GC substrate during deposition. A carbon-based film prepared at 600 degrees C in the presence of N-2 at 66.7 Pa showed the highest ORR activity among the tested samples (0.66V vs. NHE). This film was composed of amorphous carbons doped with pyridine type nitrogen atoms on its surface. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：1556 / 1561

页数：6

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