Lamellar Metal Organic Framework-Derived Fe-N-C Non-Noble Electrocatalysts with Bimodal Porosity for Efficient Oxygen Reduction

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	Lamellar Metal Organic Framework-Derived Fe-N-C Non-Noble Electrocatalysts with Bimodal Porosity for Efficient Oxygen Reduction
	Li, Zhongtao 1; Sun, Hongdi 1; Wei, Liangqin 1; Jiang, Wen-Jie 2,3; Wu, Mingbo 1; Hu, Jin-Song 2,3
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017-02-15
卷号	9 期号:6 页码:5272-5278
关键词	Oxygen Reduction Reaction Nanostructures Electrocatalysis Fuel Cells Metal Organic Frameworks
英文摘要	Developing highly efficient and stable non-Pt electrocatalysts for the oxygen reduction reaction (ORR) to replace the state-of-the-art noble metal is essential for commercialization of fuel cells. FeNC-based electrocatalysts are considered as a promising alternative to commercial Pt/C. An efficient electrocatalyst commonly requires large density of active site, high surface area, and desirable porosity, especially multimodal porosity with both large pores for efficient mass transfer and small pores for exposing as many active sites as possible. Herein, a lamellar metal organic framework (MOF) was developed as a precursor to directly achieve such a highly active Fe-N-C electrocatalyst with high surface area and desirable bimodal porosity. The mesopores arising from the special lamellar morphology of MOF benefits efficient mass transfer, and the nanopores resulting from pyrolysis of the MOF makes the majority of active sites accessible to electrolyte and thus effective for ORR. Uniform distribution of active elements N, C, and Fe at the molecular level in MOF precursor ensures abundant well-dispersed highly active sites in the catalyst. As a result, the catalyst exhibited superior ORR electrocatalytic activity and stability to commercial Pt/C. This strategy, using rarely reported lamellar MOF to prepare ORR catalysts with the merits mentioned, could inspire the exploration of a wide range of electrocatalysts from lamellar MOF precursors for various applications.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38208]
专题	化学研究所_分子纳米结构与纳米技术实验室
作者单位	1.China Univ Petr, Sch Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, 2 North First St, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Mol Nanostruct & Nanotechnol, 2 North First St, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhongtao,Sun, Hongdi,Wei, Liangqin,et al. Lamellar Metal Organic Framework-Derived Fe-N-C Non-Noble Electrocatalysts with Bimodal Porosity for Efficient Oxygen Reduction[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(6):5272-5278.
APA	Li, Zhongtao,Sun, Hongdi,Wei, Liangqin,Jiang, Wen-Jie,Wu, Mingbo,&Hu, Jin-Song.(2017).Lamellar Metal Organic Framework-Derived Fe-N-C Non-Noble Electrocatalysts with Bimodal Porosity for Efficient Oxygen Reduction.ACS APPLIED MATERIALS & INTERFACES,9(6),5272-5278.
MLA	Li, Zhongtao,et al."Lamellar Metal Organic Framework-Derived Fe-N-C Non-Noble Electrocatalysts with Bimodal Porosity for Efficient Oxygen Reduction".ACS APPLIED MATERIALS & INTERFACES 9.6(2017):5272-5278.