title: Hydrogen adsorption-mediated synthesis of concave Pt nanocubes and their enhanced electrocatalytic activity.
abstract: Concave nanocubes are enclosed by high-index facets and have negative curvature; they are expected to have enhanced reactivity, as compared to nanocubes with flat surfaces. Herein, we propose and demonstrate a new strategy for the synthesis of concave Pt nanocubes with {hk0} high-index facets, by using a hydrogen adsorption-mediated electrochemical square-wave potential method. It was found that Pt atoms prefer to deposit on edge sites rather than terrace sites on Pt surfaces with intensive hydrogen adsorption, resulting in the formation of concave structures. The as-prepared concave Pt nanocubes exhibit enhanced catalytic activity and stability towards oxidation of ethanol and formic acid in acidic solutions, compared to commercial Pt/C catalysts.
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Bang-An
authors.initials: BA
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Jia-Huan
authors.initials: JH
authors.lastname: Du
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Tian
authors.initials: T
authors.lastname: Sheng
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Na
authors.initials: N
authors.lastname: Tian
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Jing
authors.initials: J
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Zhi-You
authors.initials: ZY
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. tnsd@xmu.edu.cn sgsun@xmu.edu.cn.
authors.forename: Shi-Gang
authors.initials: SG
authors.lastname: Sun