University of Oulu

Nanoscale, 2022,14, 8601-8610,

Nickel nanoparticle-activated MoS₂ for efficient visible light photocatalytic hydrogen evolution

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Author: Shi, Xinying1,2; Zhang, Meng3; Wang, Xiao3;
Organizations: 1Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, Oulu, Finland
2School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
3Department of Physics, East China University of Science and Technology, Shanghai 200237, China
4College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan 411105, China
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.6 MB)
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Language: English
Published: Royal Society of Chemistry, 2022
Publish Date: 2022-07-01


Direct sunlight-induced water splitting for photocatalytic hydrogen evolution is the dream for an ultimate clean energy source. So far, typical photocatalysts require complicated synthetic processes and barely work without additives or electrolytes. Here, we report the realization of a hydrogen evolution strategy with a novel Ni–Ag–MoS₂ ternary nanocatalyst under visible/sun light. Synthesized through an ultrasound-assisted wet method, the composite exhibits stable catalytic activity for long-term hydrogen production from both pure and natural water. A high efficiency of 73 μmol g⁻¹ W⁻¹ h⁻¹ is achieved with only a visible light source and the (MoS₂)₈₄Ag₁₀Ni₆ catalyst, matching the values of present additive-enriched photocatalysts. Verified by experimental characterizations and first-principles calculations, the enhanced photocatalytic ability is attributed to effective charge migration through the dangling bonds at the Ni–Ag–MoS₂ alloy interface and the activation of the MoS₂ basal planes.

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Series: Nanoscale
ISSN: 2040-3364
ISSN-E: 2040-3372
ISSN-L: 2040-3364
Volume: 14
Issue: 24
Pages: 8601 - 8610
DOI: 10.1039/d2nr01489k
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
Funding: This work is supported by the European Regional Development Funding and the Council of Oulu Region. X. S. acknowledges the National Natural Science Foundation of China (No. 61904069) and the Natural Science Foundation of Jiangsu Higher Education Institutions of China (No. 19KJB140008). A. A. K. and W. C. acknowledge the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (grant agreement no. 101002219). M. H. acknowledges research funding from the Academy of Finland. The theoretical work is financially supported by the National Natural Science Foundation of China (Grant No. 11774093) and the Fundamental Research Funds for the Central Universities (No. 222201714050, 222201714018). The technical supports from the Center for Materials Analysis of University of Oulu and Beijing PerfectLight Technology, Co., Ltd are also acknowledged. The CSC-IT Center for Science, Finland, is acknowledged for their computational resources.
EU Grant Number: (101002219) CATCH - Cross-dimensional Activation of Two-Dimensional Semiconductors for Photocatalytic Heterojunctions
Copyright information: This journal is © The Royal Society of Chemistry 2020. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.