Issue 2, 2023

Bimetallic ruthenium–nickel alloy nanostructure supported on nickel foam for efficient alkaline hydrogen evolution at large current density

Abstract

Developing low-cost and efficient catalysts for hydrogen evolution is of great significance to solve the human energy crisis. In this work, ruthenium–nickel alloy is synthesized by a solvothermal method. The ruthenium–nickel alloy shows distinguished catalytic performance and durability for the hydrogen evolution reaction in alkaline solution (1 M KOH). Only 21, 76, 222 and 323 mV overpotentials are required to reach current densities of 10, 100, 1000 and 2000 mA cm−2. After 150 hours of a durability test at a current density of −400 mA cm−2, the alloy also shows outstanding durability. Density functional theory (DFT) further shows that ruthenium–nickel alloy composites can optimize the reaction barrier of alkaline hydrogen evolution. This study provides a valuable method for developing high-performance and low-price alloy catalysts for hydrogen evolution.

Graphical abstract: Bimetallic ruthenium–nickel alloy nanostructure supported on nickel foam for efficient alkaline hydrogen evolution at large current density

Supplementary files

Article information

Article type
Research Article
Submitted
28 Sep 2022
Accepted
18 Nov 2022
First published
05 Dec 2022

Inorg. Chem. Front., 2023,10, 558-566

Bimetallic ruthenium–nickel alloy nanostructure supported on nickel foam for efficient alkaline hydrogen evolution at large current density

X. Mao, Z. Liu, C. Lin, J. Li and P. K. Shen, Inorg. Chem. Front., 2023, 10, 558 DOI: 10.1039/D2QI02084J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements