The Library
Hybrids based on transition metal phosphide (Mn2P, Co2P, Ni2P) nanoparticles and heteroatom-doped carbon nanotubes for efficient oxygen reduction reaction
Tools
Chen, Kuiyong, Huang, Xiaobin, Wan, Chaoying and Liu, Hong (2015) Hybrids based on transition metal phosphide (Mn2P, Co2P, Ni2P) nanoparticles and heteroatom-doped carbon nanotubes for efficient oxygen reduction reaction. RSC Advances , 5 (113). pp. 92893-92898. doi:10.1039/c5ra21385a ISSN 2046-2069.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1039/C5RA21385A
Abstract
Hybrids based on transition metal phosphide (Mn2P, Co2P, Ni2P) nanoparticles and heteroatom-doped carbon nanotubes were facilely synthesized, and used as efficient oxygen reduction reaction (ORR) catalysts in alkaline solution. Transition metal phosphide nanoparticles formed core/shell structures with graphitic carbon, and the nanoparticles (core) can significantly influence the ORR catalytic activity of the carbon shell. Hybrids based on Co2P and Mn2P decorated heteroatom-doped carbon exhibit excellent ORR catalytic activity with regards to dominant 4eā process, low over potential, excellent methanol tolerance and durability. In contrast, Ni2P decorated heteroatom-doped carbon shows inferior ORR catalytic activity. The variation of ORR performance mainly derives from the collective effect of the electronegativity and binding energy shift of the transition metals, which would result in a different surface electronic structure of the heteroatom-doped carbon. Low electronegativity and low binding energy shift of the transition metals would lead to strong electron-donating ability of the transition metal phosphide nanoparticles, resulting in the enhanced ORR catalytic activity of the hybrid materials. This work is significant for development of advanced ORR catalysts based on heteroatom-doped carbon via rational design of the structure of hybrid materials.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Journal or Publication Title: | RSC Advances | ||||||||
Publisher: | Royal Society of Chemistry | ||||||||
ISSN: | 2046-2069 | ||||||||
Official Date: | 22 October 2015 | ||||||||
Dates: |
|
||||||||
Volume: | 5 | ||||||||
Number: | 113 | ||||||||
Page Range: | pp. 92893-92898 | ||||||||
DOI: | 10.1039/c5ra21385a | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |