Hydrogen evolution by a metal-free electrocatalyst

Zheng, Yao, Jiao, Yan, Zhu, Yihan, Li, Lu Hua, Han, Yu, Chen, Ying, Du, Aijun, Jaroniec, Mietek and Qiao, Shi Zhang (2014) Hydrogen evolution by a metal-free electrocatalyst. Nature Communications, 5 . doi:10.1038/ncomms4783

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Author Zheng, Yao
Jiao, Yan
Zhu, Yihan
Li, Lu Hua
Han, Yu
Chen, Ying
Du, Aijun
Jaroniec, Mietek
Qiao, Shi Zhang
Title Hydrogen evolution by a metal-free electrocatalyst
Journal name Nature Communications   Check publisher's open access policy
ISSN 2041-1723
Publication date 2014-04-28
Year available 2014
Sub-type Article (original research)
DOI 10.1038/ncomms4783
Open Access Status File (Publisher version)
Volume 5
Total pages 8
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2015
Language eng
Abstract Electrocatalytic reduction of water to molecular hydrogen via the hydrogen evolution reaction may provide a sustainable energy supply for the future, but its commercial application is hampered by the use of precious platinum catalysts. All alternatives to platinum thus far are based on nonprecious metals, and, to our knowledge, there is no report about a catalyst for electrocatalytic hydrogen evolution beyond metals. Here we couple graphitic-carbon nitride with nitrogen-doped graphene to produce a metal-free hybrid catalyst, which shows an unexpected hydrogen evolution reaction activity with comparable overpotential and Tafel slope to some of well-developed metallic catalysts. Experimental observations in combination with density functional theory calculations reveal that its unusual electrocatalytic properties originate from an intrinsic chemical and electronic coupling that synergistically promotes the proton adsorption and reduction kinetics.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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