Issue 21, 2024

Co2(P4O12)/CoSe2 heterostructures grown on carbon nanofibers as an efficient electrocatalyst for water splitting

Abstract

The utilization of efficient and pollution-free water splitting hydrogen production technology is of great significance for alleviating environmental problems and achieving sustainable human development. The prospects of exploring highly efficient electrocatalytic activity, low-cost, and high-stability catalysts is vast, but there are still huge challenges. In this work, ZIF-67 derived Co2(P4O12) and CoSe2 heterostructures (Co2(P4O12)/CoSe2/CNFs) loaded on carbon nanofibers have been constructed using a combination of an in situ growth method and electrostatic spinning technique. The Co2(P4O12)/CoSe2/CNFs composite catalyst exhibited the highest oxygen evolution reaction (OER) activity (315 mV) and hydrogen evolution reaction (HER) activity (221 mV) at a current density of 10 mA cm−2. After stability tests, the current density retention rates for the OER and HER are 96.1% and 85.6%, respectively. The combination of Co2(P4O12)/CoSe2/CNFs-2 was employed in a water electrolysis system, resulting in the attainment of a current density of 10 mA cm−2 at a cell voltage of only 1.71 V. This paper provides a new idea for exploring bifunctional catalysts for water electrolysis, which has good prospects for development.

Graphical abstract: Co2(P4O12)/CoSe2 heterostructures grown on carbon nanofibers as an efficient electrocatalyst for water splitting

Supplementary files

Article information

Article type
Paper
Submitted
05 Jul 2024
Accepted
16 Sep 2024
First published
18 Sep 2024

Sustainable Energy Fuels, 2024,8, 4962-4971

Co2(P4O12)/CoSe2 heterostructures grown on carbon nanofibers as an efficient electrocatalyst for water splitting

W. Cui, X. Sun, S. Xu, C. Li and J. Bai, Sustainable Energy Fuels, 2024, 8, 4962 DOI: 10.1039/D4SE00895B

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