Issue 17, 2018

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

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

Supplementary files

Article information

Article type
Communication
Submitted
16 Jan 2018
Accepted
26 Mar 2018
First published
28 Mar 2018

J. Mater. Chem. A, 2018,6, 7364-7369

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, 6, 7364 DOI: 10.1039/C8TA00499D

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