SIC OpenIR
Co2N nanoparticles embedded N-doped mesoporous carbon as efficient electrocatalysts for oxygen reduction reaction
Guo, Dakai; Tian, Zhengfang; Wang, Jiacheng; Ke, Xuebin; Zhu, Yufang
2019-04-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume473Pages:555
SubtypeArticle
AbstractCo-N-C electrocatalysts have attracted great attention in electrocatalytic ORR (oxygen reduction reaction) field. In this work, we propose to prepare Co2N nanoparticles embedded N-doped mesoporous carbon by a facile method including in situ copolymerization and pyrolysis under NH3 atmosphere. The results show that more N atoms can be doped in carbon framework by NH3 pyrolysis, it is also found that pyrolysis temperature and Co content can influence the ORR performance of samples. The sample prepared by adding Co precursor and pyrolysis at 700 degrees C has high N content (11.86 at%) and relative large specific surface area (362 m(2) g(-1)), and it also exhibited superior electrocatalytic ORR performance in terms of E-onset (- 0.038 V vs. SCE), E-1/2 (- 0.126 V vs. SCE) and large current density (5.22 mA cm(-2)). Additionally, the sample also shows better stability and resistance to methanol poisoning than Pt/C catalyst. The synergistic effect of Co-N active centers and hierarchical porous structures contribute the excellent electrocatalytic activity, which are considering as alternative catalysts for ORR in full cells.
KeywordCobalt nitrides Mesoporous carbon Electrocatalysts Oxygen reduction reaction
DOI10.1016/j.apsusc.2018.12.204
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27191
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Guo, Dakai,Tian, Zhengfang,Wang, Jiacheng,et al. Co2N nanoparticles embedded N-doped mesoporous carbon as efficient electrocatalysts for oxygen reduction reaction[J]. APPLIED SURFACE SCIENCE,2019,473:555.
APA Guo, Dakai,Tian, Zhengfang,Wang, Jiacheng,Ke, Xuebin,&Zhu, Yufang.(2019).Co2N nanoparticles embedded N-doped mesoporous carbon as efficient electrocatalysts for oxygen reduction reaction.APPLIED SURFACE SCIENCE,473,555.
MLA Guo, Dakai,et al."Co2N nanoparticles embedded N-doped mesoporous carbon as efficient electrocatalysts for oxygen reduction reaction".APPLIED SURFACE SCIENCE 473(2019):555.
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
[Guo, Dakai]'s Articles
[Tian, Zhengfang]'s Articles
[Wang, Jiacheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guo, Dakai]'s Articles
[Tian, Zhengfang]'s Articles
[Wang, Jiacheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guo, Dakai]'s Articles
[Tian, Zhengfang]'s Articles
[Wang, Jiacheng]'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.