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

Author:

Wu Zexing1ORCID,Yang Pengfei2,Li Qichang1,Xiao Weiping3,Li Zhenjiang4,Xu Guangrui4,Liu Fusheng2,Jia Baohua5,Ma Tianyi5ORCID,Feng Shouhua1,Wang Lei1

Affiliation:

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

Abstract

AbstractOxygen 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‐OV) 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‐OV 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.

Funder

National Natural Science Foundation of China

Taishan Scholar Foundation of Shandong Province

Publisher

Wiley

Subject

General Chemistry,Catalysis

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