Issue 1, 2022

Laser-assisted high-performance PtRu alloy for pH-universal hydrogen evolution

Abstract

Elucidating the interaction between different atomic species of bimetallic nanoparticles under reaction conditions is the key to the design of efficient catalysts. Here, we report a laser-assisted strategy towards PtRu alloys, where isolated Pt sites are anchored on the Ru host, and track the variation of the active site under electrocatalytic conditions. Operando X-ray absorption spectroscopy identified the local environment variations around Pt single atoms and revealed the increased PtRu alloying degree during the hydrogen evolution reaction (HER). Theoretical simulations confirmed that the increase of alloying extent modulates the d-band center of Ru for enhancing the activity. Surface-restructured PtRu alloy exhibited outstanding HER activity and stability under all pH values, achieving an unexpected low overpotential of only 15, 17, and 28 mV at 10 mA cm−2 in 1 M KOH, 1 M PBS, and 0.5 M H2SO4, respectively. This demonstrates the feasibility of surface engineering for designing advanced bimetallic catalysts with atomic-scale platinum decoration.

Graphical abstract: Laser-assisted high-performance PtRu alloy for pH-universal hydrogen evolution

Supplementary files

Article information

Article type
Communication
Submitted
13 Aug 2021
Accepted
24 Nov 2021
First published
24 Nov 2021

Energy Environ. Sci., 2022,15, 102-108

Laser-assisted high-performance PtRu alloy for pH-universal hydrogen evolution

B. Pang, X. Liu, T. Liu, T. Chen, X. Shen, W. Zhang, S. Wang, T. Liu, D. Liu, T. Ding, Z. Liao, Y. Li, C. Liang and T. Yao, Energy Environ. Sci., 2022, 15, 102 DOI: 10.1039/D1EE02518J

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