Nitrogen-doped amorphous carbon with effective electrocatalytic activity toward oxygen reduction reaction

被引：15

作者：

He, Chuansheng ^{[1
]}

Li, Lin ^{[2
]}

Zhang, Tingting ^{[1
]}

Sun, Fengzhan ^{[1
]}

Wang, Chao ^{[1
]}

Lin, Yuqing ^{[1
]}

机构：

[1] Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China

[2] Chaoyang Dist Ctr Dis Control & Prevent, Beijing 100021, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2016年 / 84卷

关键词：

Microporous materials; Nanostructures; Microstructure; Infrared spectroscopy; Catalytic properties; Electrochemical properties; METAL-FREE ELECTROCATALYSTS; REDUCED GRAPHENE OXIDE; ALKALINE-MEDIUM; REACTION ORR; COMPOSITE; CATALYSTS; PD; NANOPARTICLES; PERFORMANCE; DISPERSION;

D O I：

10.1016/j.materresbull.2016.07.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly efficient metal-free catalysts to improve the performance of oxygen reduction reactions (ORR) have attracted significant attention. Here, nitrogen-doped amorphous carbon (NDAC) were synthesized with a one-step method that pyrolyzed dopamine in a N-2 atmosphere at 700 degrees C, 800 degrees C, and 900 degrees C (NDAC-700, NDAC-800, and NDAC-900, respectively). The NDAC-700 demonstrates good catalytic activity with terrific positive onset potential (0.96 V VS RHE), which is close to Pt-C (1.0 V) (20%) toward ORR. Moreover, versus commercial Pt/C (20%) catalyst, it has better long-term operational stability and tolerance to methanol for ORR in alkaline solution. This exciting result increases the possibility of large-scale application of metal-free nanomaterials in fuel cells. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：118 / 123

页数：6

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