DICP OpenIR
学科主题物理化学
Enhanced Electron Penetration through an Ultrathin Graphene Layer for Highly Efficient Catalysis of the Hydrogen Evolution Reaction
Deng, Jiao; Ren, Pengju; Deng, Dehui; Bao, Xinhe; Ren PJ(任鹏举); Bao XH(包信和)
关键词Electrocatalysis Graphene Non-precious Metals Hydrogen Evolution Reaction Nanoparticles
刊名ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
2015-02-09
DOI10.1002/anie.201409524
54期:7页:2100-2104
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]ACTIVE EDGE SITES ; CARBON NANOTUBES ; OXYGEN REDUCTION ; PHOSPHIDE NANOPARTICLES ; ASTERISK-ASTERISK ; WATER ; ELECTROCATALYSIS ; MOLYBDENUM ; OXIDATION ; IRON
英文摘要Major challenges encountered when trying to replace precious-metal-based electrocatalysts of the hydrogen evolution reaction (HER) in acidic media are related to the low efficiency and stability of non-precious-metal compounds. Therefore, new concepts and strategies have to be devised to develop electrocatalysts that are based on earth-abundant materials. Herein, we report a hierarchical architecture that consists of ultrathin graphene shells (only 1-3 layers) that encapsulate a uniform CoNi nanoalloy to enhance its HER performance in acidic media. The optimized catalyst exhibits high stability and activity with an onset overpotential of almost zero versus the reversible hydrogen electrode (RHE) and an overpotential of only 142 mV at 10 mAcm(-2), which is quite close to that of commercial 40% Pt/C catalysts. Density functional theory (DFT) calculations indicate that the ultrathin graphene shells strongly promote electron penetration from the CoNi nanoalloy to the graphene surface. With nitrogen dopants, they synergistically increase the electron density on the graphene surface, which results in superior HER activity on the graphene shells.
语种英语
WOS记录号WOS:000349391000013
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143744
专题中国科学院大连化学物理研究所
通讯作者Ren PJ(任鹏举); Bao XH(包信和)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Deng, Jiao,Ren, Pengju,Deng, Dehui,et al. Enhanced Electron Penetration through an Ultrathin Graphene Layer for Highly Efficient Catalysis of the Hydrogen Evolution Reaction[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(7):2100-2104.
APA Deng, Jiao,Ren, Pengju,Deng, Dehui,Bao, Xinhe,任鹏举,&包信和.(2015).Enhanced Electron Penetration through an Ultrathin Graphene Layer for Highly Efficient Catalysis of the Hydrogen Evolution Reaction.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,54(7),2100-2104.
MLA Deng, Jiao,et al."Enhanced Electron Penetration through an Ultrathin Graphene Layer for Highly Efficient Catalysis of the Hydrogen Evolution Reaction".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54.7(2015):2100-2104.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2015KQGZBKZlYb.PDF(1689KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Deng, Jiao]的文章
[Ren, Pengju]的文章
[Deng, Dehui]的文章
百度学术
百度学术中相似的文章
[Deng, Jiao]的文章
[Ren, Pengju]的文章
[Deng, Dehui]的文章
必应学术
必应学术中相似的文章
[Deng, Jiao]的文章
[Ren, Pengju]的文章
[Deng, Dehui]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。