Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol

doi:10.1039/c8ta07958g

IMR OpenIR

	Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol
	Xu, Junyuan 1; Liu, Yuefeng 2; Li, Junjie 1; Amorim, Isilda 1; Zhang, Bingsen 3,4; Xiong, Dehua 5; Zhang, Nan 1; Thalluri, Sitaramanjaneya Mouli 1; Sousa, Juliana P. S.1; Liu, Lifeng 1
通讯作者	Liu, Lifeng(lifeng.liu@inl.int)
	2018-11-14
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
卷号	6 期号:42 页码:20646-20652
摘要	Microstructural engineering is an effective approach to improving electrocatalytic activity of a catalyst. Shape-controlled hollow nanostructures represent a class of interesting architectures for use in electrocatalysis, given that they may offer large surface area, preferably exposed active sites, reduced diffusion pathways for both charge and mass transport, as well as enhanced catalytic activity due to the nano-cavity effect. Herein, we for the first time report the synthesis of hollow cobalt phosphide nanoparticles with a well-defined octahedral shape (CoP OCHs) via multi-step reactions. When used as precatalysts for the oxygen evolution reaction (OER) in an alkaline solution, the as-obtained CoP OCHs not only show high apparent catalytic activity requiring an overpotential of only 240 mV to deliver the benchmark current density of 10 mA cm(-2), but also exhibit an exceptionally high catalyst surface-area-based turnover frequency (TOF) of 17.6 s(-1) and a catalyst mass-based TOF of 0.072 s(-1) at a low overpotential of 300 mV, demonstrating excellent intrinsic catalytic activity. Moreover, the CoP OCHs also show high electrocatalytic activity for the methanol oxidation reaction (MOR), outperforming most metal phosphide based MOR catalysts reported so far. The synthetic strategy reported here can be readily extended to prepare other hollow shape-controlled metal phosphide catalysts.
资助者	European Horizon 2020 project CritCat ; Portuguese Foundation of Science and Technology (FCT)
DOI	10.1039/c8ta07958g
收录类别	SCI
语种	英语
资助项目	European Horizon 2020 project CritCat[686053] ; Portuguese Foundation of Science and Technology (FCT)[IF/2014/01595] ; Portuguese Foundation of Science and Technology (FCT)[PTDC/CTM-ENE/2349/2014] ; Portuguese Foundation of Science and Technology (FCT)[016660]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000451600200004
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：94[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/130553
专题	中国科学院金属研究所
通讯作者	Liu, Lifeng
作者单位	1.Int Iberian Nanotechnol Lab INL, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 5.Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Xu, Junyuan,Liu, Yuefeng,Li, Junjie,et al. Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(42):20646-20652.
APA	Xu, Junyuan.,Liu, Yuefeng.,Li, Junjie.,Amorim, Isilda.,Zhang, Bingsen.,...&Liu, Lifeng.(2018).Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol.JOURNAL OF MATERIALS CHEMISTRY A,6(42),20646-20652.
MLA	Xu, Junyuan,et al."Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol".JOURNAL OF MATERIALS CHEMISTRY A 6.42(2018):20646-20652.