Synthesis of PtRu/Ru heterostructure for efficient methanol electrooxidation: The role of extra Ru

被引：31
作者：
Bai, Lei [1 ]
机构：
[1] Anhui Sci & Technol Univ, Coll Chem & Mat Engn, Donghua Rd, Eastern Bengbu 233100, Anhui, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2018年 / 433卷
基金：
中国博士后科学基金;
关键词：
PtRu/Ru heterostructure; Epitaxial growth; Electrooxidation; ELECTROCATALYTIC ACTIVITY; OXIDATION; NANOPARTICLES; CATALYSTS; GRAPHENE; NANOCRYSTALS; NANOSHEETS; NANOCUBES;
D O I：
10.1016/j.apsusc.2017.10.026
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Platinum-ruthenium (PtRu) nanocubes and PtRu/Ru heterostructure via epitaxial growth were synthesized by varying the amount of Ru precursor. As model catalysts, the PtRu/Ru heterostructure demonstrated the highest catalytic performance in electrooxidation of methanol, which was possibly due to the more hydroxyl species produced from the extra Ru nanoparticles as well as enhanced adsorption of methanol of PtRu alloys in the PtRu/Ru heterostructure. The catalytic performance of the catalysts was closely related with the structure, which was well characterized by a series of methods. It was expected that the present work could provide a new insight for the synthesis of PtRu based nanocatalysts. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：279 / 284
页数：6
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