Enhanced Catalytic Performance of Pt-Free Iron Phthalocyanine by Graphene Support for Efficient Oxygen Reduction Reaction

被引：390

作者：

Jiang, Yuanyuan ^{[1
,3
]}

Lu, Yizhong ^{[2
,3
]}

Lv, Xiangyu ^{[1
]}

Han, Dongxue ^{[1
]}

Zhang, Qixian ^{[1
]}

Niu, Li ^{[1
]}

Chen, Wei ^{[2
]}

机构：

[1] Changchun Inst Appl Chem, State Key Lab Elect Chem, Engn Lab Modern Analyt Tech, Changchun 130022, Jilin, Peoples R China

[2] Changchun Inst Appl Chem, State Key Lab Elect Chem, Changchun 130022, Jilin, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

ACS CATALYSIS | 2013年 / 3卷 / 06期

关键词：

fuel cells; graphene; iron phthalocyanine; noble metal-free electrocatalyst; oxygen reduction reaction; MEMBRANE FUEL-CELLS; MOLECULAR CHARGE-TRANSFER; WALLED CARBON NANOTUBES; ELECTROCATALYTIC ACTIVITY; ELECTRONIC-STRUCTURE; ALKALINE MEDIA; AREA CARBON; COMPOSITE; KINETICS; OXIDE;

D O I：

10.1021/cs4001927

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：

It is commonly accepted that it is almost not possible to realize the large-scale practical application of fuel cells if the expensive noble metal-based electrocatalysts for oxygen reduction reactions (ORR) cannot be replaced by other low-cost, efficient, and stable ones. Herein, our studies demonstrate that iron phthalocyanine (FePc) supported on chemically reduced graphene through pi-pi interaction can act as a noble metal-free electrocatalyst with a comparable activity, long-term operation stability, and better tolerance to methanol crossover and CO poisoning compared with commercial Pt/C for ORR in alkaline media. The improved electrochemical activity and stability of FePc by graphene is mainly attributed to the inherent properties of graphene and the pi-stacking interaction between FePc and planar aromatic structure of graphene. The as-prepared graphene-iron phthalocyanine (g-FePc) composite exhibits an efficient 4-electron pathway and can be used as a promising Pt-free ORR electrocatalyst.

引用

页码：1263 / 1271

页数：9

共 52 条

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