Synthesis and characterization of high performing Fe-N-C catalyst for oxygen reduction reaction (ORR) in Alkaline Exchange Membrane Fuel Cells

被引：219

作者：

Hbssen, Md Mosaddek ^{[1
]}

Artyushkova, Kateryna ^{[1
]}

Atanassov, Plamen ^{[1
]}

Serov, Alexey ^{[1
]}

机构：

[1] Univ New Mexico, CMEM, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA

来源：

JOURNAL OF POWER SOURCES | 2018年 / 375卷

关键词：

Alkaline fuel cell; Oxygen reduction reaction (ORR); H-2/O-2 fuel cell; Fe-N-C catalyst; PGM-Free catalyst; TRANSITION-METAL CHALCOGENIDES; DOPED CARBON AEROGELS; CATHODE CATALYST; ACTIVE-SITES; BIFUNCTIONAL ELECTROCATALYSTS; NONNOBLE ELECTROCATALYSTS; RECENT PROGRESS; NITROGEN; IRON; EVOLUTION;

D O I：

10.1016/j.jpowsour.2017.08.036

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：

In this article, three different Fe-N-C oxygen reduction reaction (ORR) catalysts derived from different organic molecules i.e. Fe-NMG, Fe-NMP, Fe-MBZ have been synthesized, characterized by physical chemical methods and studied in the reaction of oxygen reduction (ORR). It is found that Fe-NMG shows higher ORR performance than Fe-NMP and Fe-MBZ, by both rotating ring disk electrode (RRDE) and fuel cell tests. From characterization and surface analysis, it can be explained that the presence of higher amount of surface oxides and pyridinic nitrogen is the main reason for better performance towards ORR in alkaline media. To achieve the highest performance in alkaline exchange membrane fuel cell (AEMFC), the optimization of catalyst layer composition using various concentrations of ionomer (Tokuyama, AS4) was performed. At the optimum cathode layer configuration utilizing Fe-NMG produces the peak power density of 218 mWcm(-2), which is one of the highest values presented in the open literature. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：214 / 221

页数：8

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