journal article·2021-11-12

Revealing Hydrogen Evolution Performance of Single-Atom Platinum Electrocatalyst with Polyoxometalate Molecular Models

Fei-Yang Yu, Zhong-Ling Lang, Yun-Jie Zhou, Kun Feng, Hua-Qiao Tan, Jun Zhong, Shuit-Tong Lee, Zhen-Hui Kang, Yang-Guang Li

ACS Energy Letters· Volume 6· Issue 11
Publisher page

Abstract

Single-atom catalysts (SACs) have attracted much attention due to their outstanding catalytic activity and maximum atom utilization. However, the unclear structure of the atomic active site hinders deep understanding and wide applications of SACs. Herein, we select a series of single-atom platinum (Pt)-containing polyoxometalates with well-defined structures as molecular models to clarify the effects of metal–oxide support and coordination environment on the activity of single-atom Pt electrocatalyst for HER. In situ X-ray absorption spectroscopy and density function theory calculation reveal that metal–oxide supports affect the ability of atomic Pt site to obtain electrons, resulting in different effective potentials loaded on the Pt active center in HER. Meanwhile, the coordination environment of single-atom Pt determines the pathway of HER, which also leads to different HER performance. This work provides a feasible strategy to reveal the structure–activity relationship of SACs and design new high-efficiency SACs for electrocatalytic HER.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Polyoxometalates: Synthesis and Applications · Catalytic Processes in Materials Science

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

Affiliations

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China

Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, China

Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China

Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, China

Funding

State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Opening Project of Key Laboratory of Polyoxometalate Science of the Ministry of Education · National MCF Energy R&D Program · Collaborative Innovation Center of Suzhou Nano Science & Technology · Key-Area Research and Development Program of GuangDong Province · Natural Science Foundation of Jilin Province Science and Technology Department · Foundation of Jilin Educational Committee

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