IMR OpenIR
Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density
Luo, Yuting; Tang, Lei; Khan, Usman; Yu, Qiangmin; Cheng, Hui-Ming; Zou, Xiaolong; Liu, Bilu
2019-01-17
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume10
AbstractLarge-scale implementation of electrochemical hydrogen production requires several fundamental issues to be solved, including understanding the mechanism and developing inexpensive electrocatalysts that work well at high current densities. Here we address these challenges by exploring the roles of morphology and surface chemistry, and develop inexpensive and efficient electrocatalysts for hydrogen evolution. Three model electrocatalysts are flat platinum foil, molybdenum disulfide microspheres, and molybdenum disulfide microspheres modified by molybdenum carbide nanoparticles. The last catalyst is highly active for hydrogen evolution independent of pH, with low overpotentials of 227 mV in acidic medium and 220 mV in alkaline medium at a high current density of 1000 mA cm(-2), because of enhanced transfer of mass (reactants and hydrogen bubbles) and fast reaction kinetics due to surface oxygen groups formed on molybdenum carbide during hydrogen evolution. Our work may guide rational design of electrocatalysts that work well at high current densities.
Indexed BySCI
Language英语
WOS IDWOS:000455953600001
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81444
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Luo, Yuting,Tang, Lei,Khan, Usman,et al. Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density[J]. NATURE COMMUNICATIONS,2019,10.
APA Luo, Yuting.,Tang, Lei.,Khan, Usman.,Yu, Qiangmin.,Cheng, Hui-Ming.,...&Liu, Bilu.(2019).Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density.NATURE COMMUNICATIONS,10.
MLA Luo, Yuting,et al."Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density".NATURE COMMUNICATIONS 10(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Luo, Yuting]'s Articles
[Tang, Lei]'s Articles
[Khan, Usman]'s Articles
Baidu academic
Similar articles in Baidu academic
[Luo, Yuting]'s Articles
[Tang, Lei]'s Articles
[Khan, Usman]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Luo, Yuting]'s Articles
[Tang, Lei]'s Articles
[Khan, Usman]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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