Further Understanding of Nitrogen-Doped Carbon Catalytic Property towards Oxygen Reduction Reaction (ORR)

被引：10

作者：

Merzougui, Belabbes ^{[1
]}

Bukola, Saheed ^{[2
,3
]}

Zaffou, Rachid ^{[1
]}

机构：

[1] Qatar Fdn, Qatar Environm & Energy Res Inst, Doha, Qatar

[2] King Fahd Univ Petr & Minerals, Ctr Nanotechnol, Dhahran 31261, Saudi Arabia

[3] Clemson Univ, Dept Chem, Clemson, SC 29634 USA

来源：

MATERIALS TODAY-PROCEEDINGS | 2016年 / 3卷 / 02期

关键词：

Nitrogen doped carbon; Oxygen reduction reaction; Electrocatalysts; Polyaniline; Vinazene; Fuel Cells; FREE ELECTROCATALYST; POLYANILINE; GRAPHENE; EVOLUTION; IRON;

D O I：

10.1016/j.matpr.2016.01.113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nitrogen functionalities such as pyridinic-nitrogen, pyrrolic-nitrogen and graphitic-nitrogen based active sites are commonly produced when nitrogen precursors are pyrolyzed on carbon matrix. In this study, we demonstrate two catalysts prepared via pyrolysis of Polyaniline and Vinazene with carbon. Their excellent Oxygen reduction reaction (ORR) activities and potential cycling stability were confirmed using thin film rotating ring-disk electrode (RRDE) in 0.1M KOH and 0.1M HClO4. Structural-performance correlation analysis confirms that not only graphitic nitrogen is responsible for high ORR, but also other nitrogen functions including pyrrolic one. However, catalyst that is rich in graphitic-N shows more stability especially in acidic medium. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：691 / 695

页数：5

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