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

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 ZnCl sub(2) salt and cathodic activation,...

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Veröffentlicht in:	Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2015-01, Vol.3 (14), p.7210-7214
Hauptverfasser:	Wei, Li, Karahan, Huseyin Enis, Goh, Kunli, Jiang, Wenchao, Yu, Dingshan, Birer, Oezguer, Jiang, Rongrong, Chen, Yuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Activation Bacteria Carbon Catalysts Current density Electrocatalysts Exchange Staphylococcus aureus Strain Sustainability Tafel slopes
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container_title	Journal of materials chemistry. A, Materials for energy and sustainability
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creator	Wei, Li Karahan, Huseyin Enis Goh, Kunli Jiang, Wenchao Yu, Dingshan Birer, Oezguer Jiang, Rongrong Chen, Yuan
description	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 ZnCl sub(2) salt and cathodic activation, it demonstrates an onset overpotential as low as 76 mV, a Tafel slope of 58.4 mV dec super(-1) and a large normalized exchange current density of 1.72 10 super(-2) mA cm super(-2), which are comparable to those of hitherto best metal-free and well-fabricated metallic HER catalysts.
doi_str_mv	10.1039/c5ta00966a
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source	Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects	Activation Bacteria Carbon Catalysts Current density Electrocatalysts Exchange Staphylococcus aureus Strain Sustainability Tafel slopes
title	A high-performance metal-free hydrogen-evolution reaction electrocatalyst from bacterium derived carbon
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