Issue 10, 2022

Synergistic effect between 1D Co3S4/MoS2 heterostructures to boost the performance for alkaline overall water splitting

Abstract

The reasonable design and construction of hetero-bimetal sulfides with high performance for the oxygen/hydrogen evolution reaction (O/HER) in an alkaline electrolyte are promising but still challenging. Herein, 1D Co3S4/MoS2 bimetallic sulfide nanorods (Co3S4/MoS2 NRs) were prepared using MoO3 nanorods and ZIF-67 as the precursors. As-prepared Co3S4/MoS2 NRs showed excellent HER and OER activity, including low overpotentials at 10 mA cm−2 (116 and 280 mV) and Tafel slopes (59 and 52 mV dec−1). Furthermore, the density functional theory (DFT) reveals that the introduction of Co3S4 is conducive to reducing H2O dissociation during the HER process. In addition, Co3S4 also can effectively regulate the d orbital electrons of Mo in MoS2, which is beneficial for optimizing the H adsorption energy, thus enhancing the HER performance. Benefitting from excellent OER and HER activities, the Co3S4/MoS2 NR based-electrolyzer for overall water spitting exhibits a low cell voltage of 1.66 V to reach 20 mA cm−2 along with good stability.

Graphical abstract: Synergistic effect between 1D Co3S4/MoS2 heterostructures to boost the performance for alkaline overall water splitting

Supplementary files

Article information

Article type
Research Article
Submitted
28 Dec 2021
Accepted
11 Mar 2022
First published
14 Mar 2022

Inorg. Chem. Front., 2022,9, 2139-2149

Synergistic effect between 1D Co3S4/MoS2 heterostructures to boost the performance for alkaline overall water splitting

Z. Li, W. Xu, X. Yu, S. Yang, Y. Zhou, K. Zhou, Q. Wu, S. Ning, M. Luo, D. Zhao and N. Wang, Inorg. Chem. Front., 2022, 9, 2139 DOI: 10.1039/D1QI01646F

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