Pyrolysis of self-assembled hemin on carbon for efficient oxygen reduction reaction

被引：11

作者：

Shen, Shen ^{[1
]}

Zhai, Zihui ^{[1
]}

Qin, Jiaqi ^{[1
]}

Zhang, Xue ^{[1
]}

Song, Yujiang ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES | 2019年 / 23卷 / 09期

关键词：

non-precious metal electrocatalysts; self-assembly; hemin; oxygen reduction reaction; O-2; REDUCTION; CATALYSTS; ELECTROCATALYSTS; IRON;

D O I：

10.1142/S1088424619500585

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The employment of inexpensive metallomacrocycles to create non-precious metal electrocatalysts (NPMEs) with high performance remains a challenge. Herein, we report the self-assembly of low-cost and abundant hemin on carbon black (EC600) under hydrothermal conditions in combination with subsequent pyrolysis, leading to a new NPME. Our NPME exhibits a half-wave potential of 0.89 V vs. reversible hydrogen electrode (RHE), an onset potential of 1.0 V vs. RHE and an average HO2- yield below 2% as well as high durability toward oxygen reduction reactions (ORR) in alkaline electrolytes, ranking at the top of all reported NPMEs derived from hemin.

引用

页码：1013 / 1019

页数：7

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