IMR OpenIR
High entropy alloy/C nanoparticles derived from polymetallic MOF as promising electrocatalysts for alkaline oxygen evolution reaction
Wang, Shiqi1; Huo, Wenyi2; Fang, Feng1; Xie, Zonghan3; Shang, Jian Ku4; Jiang, Jianqing1,2
Corresponding AuthorHuo, Wenyi(wyhuo@njfu.edu.cn) ; Fang, Feng(fangfeng@seu.edu.cn)
2022-02-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume429Pages:11
AbstractRecently, high entropy alloy (HEA) based materials have been vigorously explored as viable catalysts in water electrolysis for their unique properties. However, the synthesis of efficient and robust high entropy catalysts remains a challenge. Here a facile and scalable approach is reported to synthesize advanced HEA (CoNiCuMnAl)/ C nanoparticles from the polymetallic Metal-organic framework (MOF). The novel core-shell nanoarchitectures feature face-centered cubic HEA wrapped in ultra-thin carbon shell. The optimized catalyst (deposited upon Ni foam) boosted alkaline Oxygen evolution reaction (OER) (in 1.0 M KOH) with an ultralow overpotential of 215 mV at 10 mA/cm2 (also by a low Tafel slope of 35.6 mV dec 1). The enhanced performance is closely tied to surface reconstruction (i.e., formation of oxyhydroxide catalytic active species) and the high entropy effect, revealed by Fourier-transformed alternating current voltammetry (FTACV) and in-situ Raman spectrum analysis, in conjunction with Density Functional Theory (DFT) computations. Furthermore, the new design showed excellent long-term OER stability with negligible decay through 30 h testing (under 200 mA cm-2). The present work demonstrates the feasibility and advantage of utilizing highly efficient and durable high entropy alloys for catalyzing electrochemical water splitting process.
KeywordHigh entropy alloy Catalysts Oxygen evolution reaction FTACV test In-situ Raman spectra DFT calculations
Funding OrganizationNational Natural Science Foundation of China ; Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University ; Australian Research Council Dis-covery Projects
DOI10.1016/j.cej.2021.132410
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[52171110] ; Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University[AMM2020A02] ; Australian Research Council Dis-covery Projects
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000728516800004
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167278
Collection中国科学院金属研究所
Corresponding AuthorHuo, Wenyi; Fang, Feng
Affiliation1.Southeast Univ, Jiangsu Key Lab Adv Metall Mat, Nanjing 211189, Peoples R China
2.Nanjing Forestry Univ, Coll Mech & Elect Engn, Nanjing 210037, Peoples R China
3.Univ Adelaide, Sch Mech Engn, Adelaide, SA 5005, Australia
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, Shiqi,Huo, Wenyi,Fang, Feng,et al. High entropy alloy/C nanoparticles derived from polymetallic MOF as promising electrocatalysts for alkaline oxygen evolution reaction[J]. CHEMICAL ENGINEERING JOURNAL,2022,429:11.
APA Wang, Shiqi,Huo, Wenyi,Fang, Feng,Xie, Zonghan,Shang, Jian Ku,&Jiang, Jianqing.(2022).High entropy alloy/C nanoparticles derived from polymetallic MOF as promising electrocatalysts for alkaline oxygen evolution reaction.CHEMICAL ENGINEERING JOURNAL,429,11.
MLA Wang, Shiqi,et al."High entropy alloy/C nanoparticles derived from polymetallic MOF as promising electrocatalysts for alkaline oxygen evolution reaction".CHEMICAL ENGINEERING JOURNAL 429(2022):11.
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
[Wang, Shiqi]'s Articles
[Huo, Wenyi]'s Articles
[Fang, Feng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Shiqi]'s Articles
[Huo, Wenyi]'s Articles
[Fang, Feng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Shiqi]'s Articles
[Huo, Wenyi]'s Articles
[Fang, Feng]'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.