Ultralow-temperature assisted synthesis of single platinum atoms anchored on carbon nanotubes for efficiently electrocatalytic acidic hydrogen evolution

作     者：Wenwu Zhong Wenguang Tu Zongpeng Wang Zhiping Lin Aijiao Xu Xiufang Ye Dongchu Chen Beibei Xiao Wenwu Zhong;Wenguang Tu;Zongpeng Wang;Zhiping Lin;Aijiao Xu;Xiufang Ye;Dongchu Chen;Beibei Xiao

作者机构：Department of MaterialsTaizhou UniversityTaizhou 318000ZhejiangChina School of Energy and Power EngineeringJiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina School of Material Science and Energy EngineeringFoshan UniversityFoshan 528001GuangdongChina School of Mechanical df Aerospace EngineeringNanyang Technological UniversitySingapore637459Singapore 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第12期

页      面：280-292页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financial support from the National Natural Science Foundation of China (No. 51572183) the Key Research and Development Plan of Science and Technology of China (No. 2018YFE0202600) 

主　　题：Hydrogen evolution reaction Single-atom catalysts Ultralow-temperature Platinum Carbon nanotubes 

摘      要：Although platinum(Pt) is highly active for hydrogen evolution reaction(HER)[1], it is crucial to explore the effective approach for minimizing the Pt loading amount in the practical application. Herein, one ultralow-temperature solution reduction approach is developed to anchor atomically dispersed Pt atoms on carbon nanotubes(Pt-CNTs), which decelerates the diffusion rate of Pt Cl2-6 ion reached onto the carbon nanotubes and lowers the free energy of Pt atoms in the solution to reduce the probability of the Pt aggregation. The obtained Pt-CNTs exhibits a low overpotential of 41 mV@10 mA cm^(-2) for HER in acidic media. The calculation results revealed that the improvement of the electrocatalytic activity is contributed by the interaction between CNTs and Pt atoms, which descreases the the Pt d band cneter referred to the Fermi level and lowers the Gibbs free energy of H*adsorption. This work may provide one easy and convenient strategy for the large-scale use of Pt catalysts in practical applications.