Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands

Ali Alinezhad; Tania M. Benedetti; Jiaxin Lian; Vinicius R. Gonçales; J. Justin Gooding; Richard D. Tilley

doi:10.1039/D0CC07769K

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Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands†

Ali Alinezhad,^a Tania M. Benedetti,

^a Jiaxin Lian,

^a Vinicius R. Gonçales,

^a J. Justin Gooding

^abc and Richard D. Tilley

*^acd

Author affiliations

* Corresponding authors

^a School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
E-mail: r.tilley@unsw.edu.au

^b Australian Centre for Nanomedicine, University of New South Wales, Sydney, NSW, Australia

^c ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, Australia

^d Electron Microscope Unit, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia

Abstract

Pt islands with different sizes were grown on amorphous Ni nanoparticles, allowing the tuning of the Pt–Ni interface without changing the hydrogen binding energy of the Pt sites. As a result, the HER activity of the electrocatalysts increases by decreasing the size of the Pt islands due to the greater surface area of the Pt–Ni interfaces.

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Article information

DOI: https://doi.org/10.1039/D0CC07769K
Article type: Communication
Submitted: 27 Nov 2020
Accepted: 03 Feb 2021
First published: 03 Feb 2021

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Chem. Commun., 2021,57, 2788-2791

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Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands

A. Alinezhad, T. M. Benedetti, J. Lian, V. R. Gonçales, J. J. Gooding and R. D. Tilley, Chem. Commun., 2021, 57, 2788 DOI: 10.1039/D0CC07769K

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Chemical Communications

Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands†

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Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands

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