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Boosting electrocatalytic hydrogen evolution by plasmon-driven hot-electron excitation

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Abstract

High-performance catalysts for electrocatalytic and photoelectrochemical water splitting hold great promise for renewable energy conversion and storage. Herein, using porous N-doped carbon supported Au nanoparticles as catalysts, we demonstrate that the photon-induced localized surface plasmon resonance (LSPR) excitation on Au nanoparticles dramatically improves the hydrogen evolution reaction (HER), leading to a more than 4-fold increase of current and meanwhile affording a markedly decreased overpotential of 99 mV at a current density of 10 mA cm−2. The HER enhancement can be largely attributed to the efficient charge transfer of N-doped carbon that fastens the injection of hot electrons from plasmonic Au nanoparticles. This study highlights the increase of HER catalysis efficiency by plasmonic excitation and could provide new avenues towards the design of higher energy conversion catalytic water splitting systems with the assistance of light energy.

Graphical abstract: Boosting electrocatalytic hydrogen evolution by plasmon-driven hot-electron excitation

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Publication details

The article was received on 14 Nov 2017, accepted on 28 Dec 2017 and first published on 29 Dec 2017


Article type: Communication
DOI: 10.1039/C7NR08474A
Citation: Nanoscale, 2018, Advance Article
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    Boosting electrocatalytic hydrogen evolution by plasmon-driven hot-electron excitation

    H. Zhang, Y. Li, M. Li, H. Zhang and J. Zhang, Nanoscale, 2018, Advance Article , DOI: 10.1039/C7NR08474A

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