Multiple Twin Boundary-Regulated Metastable Pd for Ethanol Oxidation Reaction

Liu Chang; Shen Yi; Zhang JinfengLi GenZheng XuerongHan XiaopengXu LianyongZhu ShuzeChen YananDeng YidaHu Wenbin

首页> 外文期刊>Advanced energy materials >Multiple Twin Boundary-Regulated Metastable Pd for Ethanol Oxidation Reaction

【24h】

Multiple Twin Boundary-Regulated Metastable Pd for Ethanol Oxidation Reaction

机译：Multiple Twin Boundary-Regulated Metastable Pd for Ethanol Oxidation Reaction

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Abundant surface structural defects can endow electrocatalysts with extraordinary physical and chemical characteristics. Herein, metastable Pd nanoparticles (NPs) with abundant twin boundaries (TBs) and atomic steps (ASs) anchored on a carbon substrate (TS-Pd/C) are directly synthesized by a solid-state thermal shock (TS) strategy. Molecular dynamics simulation indicates that the transient super cooling procedure after the TS synthesis can boost the formation of TBs. Benefitting from the abundant TBs and ASs, these metastable Pd NPs can serve as an advanced electrocatalyst for the ethanol oxidation reaction (EOR) with superior reactivity, stability, and CO tolerance in alkaline solutions, which far exceeds that of commercial Pd/C. The first-principles calculations suggest that the defect structure dominated by TBs can achieve the spatial separation of the optimal adsorption sites for CO and OH. The CO can concentrate at optimal surface sites to minimize the number of poisoned active sites. The strong adsorption of OH can accelerate the EOR process and jointly promote the improvement of electrocatalytic reactivity.

著录项

来源
《Advanced energy materials》 |2022年第8期|2103505.1-2103505.9|共9页
作者
Liu Chang; Shen Yi; Zhang JinfengLi GenZheng XuerongHan XiaopengXu LianyongZhu ShuzeChen YananDeng YidaHu Wenbin;
展开▼
作者单位

Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China;

Zhejiang Univ, Sch Aeronaut & Astronaut, Inst Appl Mech, Dept Engn Mech, Hangzhou 310000, Peoples R China;

Tianjin Univ, Tianjin Key Lab Adv Joining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R ChinaTianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China|Hainan Univ, Sch Mat Sci & Engn, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R ChinaTianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China|Tianjin Univ, Joint Sch Natl Univ Singapore & Tianjin Univ, Int Campus, Fuzhou 350207, Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
electrocatalysis; ethanol oxidation reaction; metastable; palladium; twin boundary;

Multiple Twin Boundary-Regulated Metastable Pd for Ethanol Oxidation Reaction

摘要

著录项

相关主题

期刊订阅