Microwave Synthesis of Pt Clusters on Black TiO2 with Abundant Oxygen Vacancies for Efficient Acidic Electrocatalytic Hydrogen Evolution

Zexing Wu; Pengfei Yang; Qichang Li; Weiping Xiao; Zhenjiang Li; Guangrui Xu; Fusheng Liu; Baohua Jia; Tianyi Ma; Shouhua Feng; Lei Wang

doi:10.1002/anie.202300406

Microwave Synthesis of Pt Clusters on Black TiO₂ with Abundant Oxygen Vacancies for Efficient Acidic Electrocatalytic Hydrogen Evolution

Angew Chem Int Ed Engl. 2023 Mar 27;62(14):e202300406. doi: 10.1002/anie.202300406. Epub 2023 Feb 23.

Authors

Zexing Wu¹, Pengfei Yang², Qichang Li¹, Weiping Xiao³, Zhenjiang Li⁴, Guangrui Xu⁴, Fusheng Liu², Baohua Jia⁵, Tianyi Ma⁵, Shouhua Feng¹, Lei Wang¹

Affiliations

¹ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, 53 Zhengzhou Road, Qingdao, 266042, P. R. China.
² College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
³ College of Science, Nanjing Forestry University, Nanjing, 210037, P. R. China.
⁴ College of Materials Science and Engineering, Key Laboratory of Polymer Material Advanced Manufacturing's Technology of Shandong Province, Qingdao University of Science & Technology, 53 Zhengzhou Road, Qingdao, 266042, P. R. China.
⁵ School of Science, STEM College, RMIT University, Australia.

PMID: 36754865
DOI: 10.1002/anie.202300406

Abstract

Oxygen vacancies-enriched black TiO₂ is one promising support for enhancing hydrogen evolution reaction (HER). Herein, oxygen vacancies enriched black TiO₂ supported sub-nanometer Pt clusters (Pt/TiO₂ -O_V ) with metal support interactions is designed through solvent-free microwave and following low-temperature electroless approach for the first time. High-temperature and strong reductants are not required and then can avoid the aggregation of decorated Pt species. Experimental and theoretical calculation verify that the created oxygen vacancies and Pt clusters exhibit synergistic effects for optimizing the reaction kinetics. Based on it, Pt/TiO₂ -O_V presents remarkable electrocatalytic performance with 18 mV to achieve 10 mA cm^-2 coupled with small Tafel slope of 12 mV dec^-1 . This work provides quick synthetic strategy for preparing black titanium dioxide based nanomaterials.

Keywords: Black TiO2; Hydrogen Evolution Reaction; Oxygen Vacancies; Pt Sub-Nanocluster.

Abstract

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