Template-free synthesis of platinum hollow-opened structures in deep-eutectic solvents and their enhanced performance for methanol electrooxidation

被引：29

作者：

Wang, Xiaoqu ^{[1
]}

Sun, Miaolan ^{[1
]}

Xiang, Sheng ^{[1
]}

Waqas, Muhammad ^{[1
]}

Fan, Youjun ^{[1
]}

Zhong, Jingping ^{[1
]}

Huang, Kexin ^{[1
]}

Chen, Wei ^{[1
]}

Liu, Laijun ^{[2
]}

Yang, Jun ^{[3
,4
]}

机构：

[1] Guangxi Normal Univ, Coll Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Peoples R China

[2] Guilin Univ Technol, Coll Mat Sci & Engn, Guilin 541004, Peoples R China

[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China

[4] Zhongke Langfang Inst Proc Engn, Fenghua Rd 1, Xiangyang 065001, Hebei, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2020年 / 337卷

基金：

中国国家自然科学基金;

关键词：

Deep eutectic solvents; Hollow-opened structures; Platinum nanoparticles; Electrocatalyst; Methanol oxidation reaction; SOLVOTHERMAL SYNTHESIS; GRAPHENE NANOSHEETS; METAL NANOCRYSTALS; CARBON NANOTUBES; HIGHLY EFFICIENT; SHAPE CONTROL; NANOCATALYSTS; NANOPARTICLES; ALLOY; OXIDATION;

D O I：

10.1016/j.electacta.2020.135742

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

As a novel non-aqueous green solvent that can deem to be the optimal substitution of conventional solvents and ionic liquids, deep-eutectic solvents (DESs) have attracted significant attention from academia and industry in terms of chemical synthesis in recent years. Herein, we report the highly effective preparation of Pt nanoparticles with hollow-opened structures (Pt HOSs) as an efficient electrocatalyst for methanol oxidation reaction (MOR) via a facile template-free solvothermal synthesis in DESs. The as-obtained Pt HOSs are consisted of well assembled secondary and tertiary branches, which can remarkably improve the utilization efficiency and electrocatalytic activity of Pt via promoting the access of electroactive species to the full-extent Pt surface. In this regard, the as-prepared Pt HOSs possess higher electrochemically active surface areas (ECSAs) and show improved electrochemical properties for MOR. Furthermore, the Pt HOSs retain a higher reactivity after the long-term testing compared with commercial Pt black, suggesting that they have enhanced electrocatalytic durability. In specific, the rational design of Pt HOSs in DESs may enrich the synthetic strategies for producing more electrocatalysts with impressive activity and stability. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：8

共 48 条

[1] Electrodeposition of copper composites from deep eutectic solvents based on choline chloride [J].