IMR OpenIR
Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) phosphide precatalysts
Xu, JY; Li, JJ; Xiong, DH; Zhang, BS; Liu, YF; Wu, KH; Amorim, I; Li, W; Liu, LF; Liu, LF (reprint author), Int Iberian Nanotechnol Lab, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal.
2018-04-14
Source PublicationCHEMICAL SCIENCE
ISSN2041-6520
Volume9Issue:14Pages:3470-3476
AbstractTransition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi-and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH- groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm(-2) and showing a high turnover frequency (TOF) of >= 0.94 s(-1) at the overpotential of 350 mV.; Transition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi-and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH- groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm(-2) and showing a high turnover frequency (TOF) of >= 0.94 s(-1) at the overpotential of 350 mV.
description.department[xu, junyuan ; li, junjie ; xiong, dehua ; amorim, isilda ; li, wei ; liu, lifeng] int iberian nanotechnol lab, ave mestre jose veiga, p-4715330 braga, portugal ; [zhang, bingsen ; liu, yuefeng ; wu, kuang-hsu] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [wu, kuang-hsu] univ new south wales, sch chem engn, sydney, nsw 2052, australia
KeywordElectrochemical Water Oxidation Bifunctional Catalysts Highly Efficient Double Hydroxide Nickel Foam Electrocatalysts Nanoparticles Nanosheets Graphene Insights
Subject AreaChemistry, Multidisciplinary
Funding OrganizationEuropean Horizon project "CritCat" [686053]; Portuguese Foundation of Science and Technology (FCT) [IF/01595/2014, PTDC/CTM-ENE/2349/2014, 016660]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79364
Collection中国科学院金属研究所
Corresponding AuthorLiu, LF (reprint author), Int Iberian Nanotechnol Lab, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal.
Recommended Citation
GB/T 7714
Xu, JY,Li, JJ,Xiong, DH,et al. Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) phosphide precatalysts[J]. CHEMICAL SCIENCE,2018,9(14):3470-3476.
APA Xu, JY.,Li, JJ.,Xiong, DH.,Zhang, BS.,Liu, YF.,...&Liu, LF .(2018).Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) phosphide precatalysts.CHEMICAL SCIENCE,9(14),3470-3476.
MLA Xu, JY,et al."Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) phosphide precatalysts".CHEMICAL SCIENCE 9.14(2018):3470-3476.
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
[Xu, JY]'s Articles
[Li, JJ]'s Articles
[Xiong, DH]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, JY]'s Articles
[Li, JJ]'s Articles
[Xiong, DH]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, JY]'s Articles
[Li, JJ]'s Articles
[Xiong, DH]'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.