Phosphorus-Doped Ordered Mesoporous Carbons with Different Lengths as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction in Alkaline Media

被引：861

作者：

Yang, Dae-Soo ^{[1
]}

Bhattacharjya, Dhrubajyoti ^{[1
]}

Inamdar, Shaukatali ^{[1
]}

Park, Jinsol ^{[1
]}

Yu, Jong-Sung ^{[1
]}

机构：

[1] Korea Univ, Dept Adv Mat Chem, Sejong 339700, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 39期

基金：

新加坡国家研究基金会;

关键词：

MEMBRANE FUEL-CELL; DISORDERED ARRAYS; SUPPORT MATERIALS; CATALYST SUPPORT; SBA-15; SILICA; NANOTUBES; CATHODE; NANOPARTICLES; ENHANCEMENT; NANOFIBERS;

D O I：

10.1021/ja306376s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Phosphorus-doped ordered mesoporous carbons (POMCs) with different lengths were synthesized using a metal-free nanocasting method of SBA-15 mesoporous silica with different sizes as template and triphenylphosphine and phenol as phosphorus and carbon sources, respectively. The resultant POMC with a small amount of P doping is demonstrated as a metal-free electrode with excellent electrocatalytic activity for oxygen reduction reaction (ORR), coupled with much enhanced stability and alcohol tolerance compared to those of platinum via four-electron pathway in alkaline medium. Interestingly, the POMC with short channel length is found to have superior electrochemical performances compared to those with longer sizes.

引用

页码：16127 / 16130

页数：4

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