CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Single-Atomic Ruthenium Catalytic Sites on Nitrogen-Doped Graphene for Oxygen Reduction Reaction in Acidic Medium
Zhang, CH; Sha, JW; Fei, HL; Liu, MJ; Yazdi, S; Zhang, JB; Zhong, QF; Zou, XL; Zhao, NQ; Yu, HS; Jiang, Z; Ringe, E; Yakobson, BI; Dong, JC; Chen, DL; Tour, JM
2017
Source PublicationACS NANO
ISSN1936-0851
Volume11Issue:7Pages:6930-6941
Subtype期刊论文
AbstractThe cathodic oxygen reduction reaction (ORR) is essential in the electrochemical energy conversion of fuel cells. Here, through the NH3 atmosphere annealing of a graphene oxide (GO) precursor containing trace amounts of Ru, we have synthesized atomically dispersed Ru on nitrogen-doped graphene that performs as an electrocatalyst for the ORR in acidic medium. The Ru/nitrogendoped GO catalyst exhibits excellent four-electron ORR activity, offering onset and half-wave potentials of 0.89 and 0.75 V, respectively, vs a reversible hydrogen electrode (RHE) in 0.1 M HClO4, together with better durability and tolerance toward methanol and carbon monoxide poisoning than seen in commercial Pt/C catalysts. X-ray adsorption fine structure analysis and aberration-corrected high-angle annular dark-field scanning transmission electron microscopy are performed and indicate that the chemical structure of Ru is predominantly composed of isolated Ru atoms coordinated with nitrogen atoms on the graphene substrate. Furthermore, a density function theory study of the ORR mechanism suggests that a Ru-oxo-N-4 structure appears to be responsible for the ORR catalytic activity in the acidic medium. These findings provide a route for the design of efficient ORR single-atom catalysts.
KeywordX-ray-absorption Total-energy Calculations Membrane Fuel-cells Wave Basis-set Carbon Electrocatalysts Oxidation Iron Oxide Performance Cobalt
DOI10.1021/acsnano.7b02148
Indexed BySCI
WOS KeywordX-RAY-ABSORPTION ; TOTAL-ENERGY CALCULATIONS ; MEMBRANE FUEL-CELLS ; WAVE BASIS-SET ; CARBON ELECTROCATALYSTS ; OXIDATION ; IRON ; OXIDE ; PERFORMANCE ; COBALT
Language英语
WOS IDWOS:000406649700041
Citation statistics
Cited Times:103[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28819
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhang, CH,Sha, JW,Fei, HL,et al. Single-Atomic Ruthenium Catalytic Sites on Nitrogen-Doped Graphene for Oxygen Reduction Reaction in Acidic Medium[J]. ACS NANO,2017,11(7):6930-6941.
APA Zhang, CH.,Sha, JW.,Fei, HL.,Liu, MJ.,Yazdi, S.,...&Tour, JM.(2017).Single-Atomic Ruthenium Catalytic Sites on Nitrogen-Doped Graphene for Oxygen Reduction Reaction in Acidic Medium.ACS NANO,11(7),6930-6941.
MLA Zhang, CH,et al."Single-Atomic Ruthenium Catalytic Sites on Nitrogen-Doped Graphene for Oxygen Reduction Reaction in Acidic Medium".ACS NANO 11.7(2017):6930-6941.
Files in This Item: Download All
File Name/Size DocType Version Access License
Single-Atomic Ruthen(6383KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, CH]'s Articles
[Sha, JW]'s Articles
[Fei, HL]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, CH]'s Articles
[Sha, JW]'s Articles
[Fei, HL]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, CH]'s Articles
[Sha, JW]'s Articles
[Fei, HL]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Single-Atomic Ruthenium Catalytic Sites on Nitrogen-Doped Graphene for Oxygen Reduction Reaction in Acidic Medium.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.