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Plasmon-enhanced electrocatalytic hydrogen/oxygen evolution by Pt/Fe–Au nanorods

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Abstract

Surface plasmon resonance-enhanced electrolysis has become attractive since it realizes the highly efficient conversion of electric energy with the help of solar energy. Herein, Pt/Fe was grown on gold (Au) nanorods by a simple wet-chemistry process, producing either dumbbell-like nanorods (Pt/Fe–Au) or core–shell nanorods (Au@Pt/Fe). Using hydrogen evolution reaction as a model, these nanostructures were examined as an electrocatalyst with/without light irradiation. As a result, dumbbell-like nanorods exhibited the best performance under light irradiation due to plasmon-induced enhancement. Then, CV curves, activation energy at zero potential, it responses to light irradiation and jt evolution revealed that the plasmon-excited electron-transfer rather than the photothermal effect resulted in the electrocatalysis enhancement. This enhancement was also demonstrated for oxygen evolution reaction, suggesting its great potential in other electrocatalysis applications.

Graphical abstract: Plasmon-enhanced electrocatalytic hydrogen/oxygen evolution by Pt/Fe–Au nanorods

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Publication details

The article was received on 16 Jan 2018, accepted on 26 Mar 2018 and first published on 28 Mar 2018


Article type: Communication
DOI: 10.1039/C8TA00499D
Citation: J. Mater. Chem. A, 2018, Advance Article
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    Plasmon-enhanced electrocatalytic hydrogen/oxygen evolution by Pt/Fe–Au nanorods

    X. Guo, X. Li, S. Kou, X. Yang, X. Hu, D. Ling and J. Yang, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA00499D

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