Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 20, 2020
Previous Article Next Article

Plasmon-enhanced electrocatalytic oxygen reduction in alkaline media on gold nanohole electrodes

Author affiliations

Abstract

Plasmon-driven chemical transformation has become a promising approach for enhancing sluggish electrocatalytic reactions. Herein, an alternative enhancement strategy employing plasmon-induced hot electrons was developed and found to be competitive with oxygen reduction reaction (ORR) on platinum electrodes. We demonstrated that, by using the intertwined plasmon-catalytic-electrochemical properties of nanoperforated gold thin film electrodes, the ORR under alkaline conditions could be significantly enhanced by careful tuning of the laser wavelength and power density. Irradiation at 980 nm and 2 W cm−2 displays maximal current densities of j = −6.0 A cm−2 at 0.95 V vs. RHE, under hydrodynamic conditions, comparable to that of commercial Pt/C (40 wt%) catalysts, with good long-term stability. The wavelength-dependent electrochemical reduction confirmed that the hot carriers formed during plasmon decay are responsible for the improved electrocatalytic performance.

Graphical abstract: Plasmon-enhanced electrocatalytic oxygen reduction in alkaline media on gold nanohole electrodes

Back to tab navigation

Supplementary files

Article information


Submitted
29 Dec 2019
Accepted
07 May 2020
First published
07 May 2020

J. Mater. Chem. A, 2020,8, 10395-10401
Article type
Paper

Plasmon-enhanced electrocatalytic oxygen reduction in alkaline media on gold nanohole electrodes

T. N. Saada, A. G. Marques da Silva, P. Subramanian, L. Pang, N. Adnane, B. Djafari-Rouhani, V. Mishyn, D. Meziane, S. Melinte, G. Sandu, F. Dumeignil, S. Paul, R. Wojcieszak, R. Boukherroub and S. Szunerits, J. Mater. Chem. A, 2020, 8, 10395
DOI: 10.1039/C9TA14174J

Social activity

Search articles by author

Spotlight

Advertisements