Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions

doi:10.1021/jacs.8b08744

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	Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions
	Wang, Xiaolu; Xiao, Hai; Li, Ang; Li, Zhi; Li, Jun; Liu, Shoujie; Li, Yadong; Zheng LR(郑黎荣); Zheng, Lirong; Gong, Yue
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2018
卷号	140 期号:45 页码:15336-15341
ISSN号	0002-7863
DOI	10.1021/jacs.8b08744
文献子类	Article
英文摘要	Metal-organic frameworks (MOF) have recently emerged as versatile precursors to fabricate functional MOF derivatives for oxygen evolution reactions (OER). Herein, we developed a controlled partial pyrolysis strategy to construct robust NiCo/Fe3O4 heteroparticles within MOF-74 for efficient OER using trimetallic NiCoFe-MOF-74 as precursor. The partial pyrolysis method preserves the framework structure of MOF for effective substrates diffusion while producing highly active nanoparticles. The as-prepared NiCo/Fe3O4/MOF-74 delivered remarkably stable OER current with an overpotential as low as 238 mV at 10.0 mA cm(-2) and an Tafel slop of 29 mV/dec, outperforming those of pristine NiCoFe-MOF-74, totally decomposed MOF derivatives, and most reported non-noble metal based electrocatalysts. The key for the formation of NiCo/Fe3O4/MOF-74 nanostructures is that the metals can be decomposed from NiCoFe-MOF-74 in the order of Ni, Co, and Fe under controlled heat treatment. Density functional theory calculations reveals that the underlying NiCo promotes the OER activity of Fe3O4 through exchange stabilization of active oxygen species.
WOS关键词	METAL-ORGANIC FRAMEWORKS ; NANOSTRUCTURES ; NANOPARTICLES ; CATALYSTS ; ARRAYS
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000451100600029
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286875]
专题	中国科学院高能物理研究所_中国散裂中子源高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wang, Xiaolu,Xiao, Hai,Li, Ang,et al. Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2018,140(45):15336-15341.
APA	Wang, Xiaolu.,Xiao, Hai.,Li, Ang.,Li, Zhi.,Li, Jun.,...&Han, Xiaodong.(2018).Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,140(45),15336-15341.
MLA	Wang, Xiaolu,et al."Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140.45(2018):15336-15341.