DataVXAdvanced MaterialsPaper
journal article·2024-11

WS2 Moiré Superlattices Supporting Au Nanoclusters and Isolated Ru to Boost Hydrogen Production

Dechao Chen, Tianyu Gao, Zengxi Wei, Mengjia Wang, Yingfei Ma, Dongdong Xiao, Changsheng Cao, Cheng‐You Lee, Pan Liu, Dengchao Wang, Shuangliang Zhao, Hsiao‐Tsu Wang, Lili Han

Advanced Materials· Volume 36· Issue 46
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Source abstract

Abstract

Abstract Maximizing the catalytic activity of single‐atom and nanocluster catalysts through the modulation of the interaction between these components and the corresponding supports is crucial but challenging. Herein, guided by theoretical calculations, a nanoporous bilayer WS2 Moiré superlattices (MSLs) supported Au nanoclusters (NCs) adjacent to Ru single atoms (SAs) (Ru1/Aun‐2LWS2) is developed for alkaline hydrogen evolution reaction (HER) for the first time. Theoretical analysis suggests that the induced robust electronic metal–support interaction effect in Ru1/Aun‐2LWS2 is prone to promote the charge redistribution among Ru SAs, Au NCs, and WS2 MSLs support, which is beneficial to reduce the energy barrier for water adsorption and thus promoting the subsequent H2 formation. As feedback, the well‐designed Ru1/Aun‐2LWS2 electrocatalyst exhibits outstanding HER performance with high activity (η10 = 19 mV), low Tafel slope (35 mV dec−1), and excellent long‐term stability. Further, in situ, experimental studies reveal that the reconstruction of Ru SAs/NCs with S vacancies in Ru1/Aun‐2LWS2 structure acts as the main catalytically active center, while high‐valence Au NCs are responsible for activating and stabilizing Ru sites to prevent the dissolution and deactivation of active sites. This work offers guidelines for the rational design of high‐performance atomic‐scale electrocatalysts.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China

School of Chemical Sciences University of Chinese Academy of Sciences Beijing 101408 China

Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 China

State Key Laboratory of Featured Metal Materials and Life‐cycle Safety for Composite Structures Guangxi University Nanning 53004 China

State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200030 China

Materials and Packaging Engineering Fujian Polytechnic Normal University Fuzhou Fujian 350330 China

Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China

Key Laboratory of Advanced Carbon‐Based Functional Materials (Fujian Province University) Fuzhou University Fuzhou Fujian 350016 China

Bachelors's Program in Advanced Materials Science Tamkang University New Taipei 251301 Taiwan

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Fujian Province

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