A high-performance metal-free hydrogen-evolution reaction electrocatalyst from bacterium derived carbon

被引：73

作者：

Wei, Li ^{[1
]}

Karahan, Huseyin Enis ^{[1
]}

Goh, Kunli ^{[1
]}

Jiang, Wenchao ^{[1
]}

Yu, Dingshan ^{[1
]}

Birer, Ozgur ^{[2
,3
]}

Jiang, Rongrong ^{[1
]}

Chen, Yuan ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore

[2] Koc Univ, Dept Chem, TR-34450 Istanbul, Turkey

[3] Koc Univ, KUYTAM Surface Sci & Technol Ctr, TR-34450 Istanbul, Turkey

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 14期

关键词：

COBALT; NANOPARTICLES; NANOSHEETS; OXIDATION; CATALYSTS; WATER; ELECTROCHEMISTRY; CELLS; ACID;

D O I：

10.1039/c5ta00966a

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：

We report a sustainable approach to obtain carbon materials with nitrogen and phosphorus dual functionalities from a common bacterium strain (S. aureus) as a highly efficient hydrogen-evolution reaction (HER) catalyst. With mesoporous structure introduced by ZnCl2 salt and cathodic activation, it demonstrates an onset overpotential as low as 76 mV, a Tafel slope of 58.4 mV dec(-1) and a large normalized exchange current density of 1.72 x 10(-2) mA cm(-2), which are comparable to those of hitherto best metal-free and well-fabricated metallic HER catalysts.

引用

页码：7210 / 7214

页数：5

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