Issue 10, 2022

PtSe2 on a reduced graphene oxide foil for the alkaline hydrogen evolution reaction

Abstract

Reducing energy consumption during the hydrogen evolution reaction (HER) in electrocatalytic water splitting for hydrogen production is still a challenge. Among the transition metal dichalcogenide family, platinum diselenide (PtSe2) exhibits good air stability, a low band-gap, and semimetallic properties, rendering it a promising catalyst for the HER. Herein, the selenization of predeposited Pt on a reduced graphene oxide (rGO) substrate forming an 88 ± 6 nm PtSe2 thin layer results in a freestanding, efficient HER electrocatalyst yielding a competitive performance in an alkaline medium, achieving a low overpotential of 95 mV at −10 mA cm−2. Furthermore, the PtSe2/rGO foil used in a two-electrode cell configuration demonstrates good long-term stability, up to 18 hours. The performance of the PtSe2/rGO foil results from the distribution of PtSe2 over the rGO substrate, which is maintained after the electrochemical reactions as attested by Raman mapping, and complemented by scanning electron microscopy, inductively coupled plasma optical emission spectrometry, and X-ray photoelectron spectroscopy characterization.

Graphical abstract: PtSe2 on a reduced graphene oxide foil for the alkaline hydrogen evolution reaction

Supplementary files

Article information

Article type
Paper
Submitted
18 Feb 2022
Accepted
09 Apr 2022
First published
11 Apr 2022
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 4348-4358

PtSe2 on a reduced graphene oxide foil for the alkaline hydrogen evolution reaction

F. M. Oliveira, I. Danylo, V. Mazánek, M. Veselý, R. Gusmão and Z. Sofer, Mater. Adv., 2022, 3, 4348 DOI: 10.1039/D2MA00190J

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