NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis

Weiren Cheng; Xue Feng Lu; Deyan Luan; Xiong Wen (David) Lou

doi:10.1002/anie.202008129

Author(s)

Weiren Cheng
Xue Feng Lu
Deyan Luan
Xiong Wen (David) Lou

Detail(s)

Original language	English
Pages (from-to)	18234-18239
Journal / Publication	Angewandte Chemie - International Edition
Volume	59
Issue number	41
Online published	3 Jul 2020
Publication status	Published - 5 Oct 2020
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1002/anie.202008129 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85089394514&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(7a3ffe51-9f10-45c0-96d9-f5b7b89f4f3f).html

Abstract

Developing noble-metal-free bifunctional oxygen electrocatalysts is of great significance for energy conversion and storage systems. Herein, we have developed a transformation method for growing NiMn-based bimetal–organic framework (NiMn-MOF) nanosheets on multi-channel carbon fibers (MCCF) as a bifunctional oxygen electrocatalyst. Owing to the desired components and architecture, the MCCF/NiMn-MOFs manifest comparable electrocatalytic performance towards oxygen reduction reaction (ORR) with the commercial Pt/C electrocatalyst and superior performance towards oxygen evolution reaction (OER) to the benchmark RuO₂ electrocatalyst. X-ray absorption fine structure (XAFS) spectroscopy and density functional theory (DFT) calculations reveal that the strong synergetic effect of adjacent Ni and Mn nodes within MCCF/NiMn-MOFs effectively promotes the thermodynamic formation of key *O and *OOH intermediates over active NiO₆ centers towards fast ORR and OER kinetics. © 2020 Wiley-VCH GmbH

Research Area(s)

electrocatalysis, MOFs, multi-channel carbon fiber, OER, ORR

Citation Format(s)

[ RIS ] [ BibTeX ]

NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis. / Cheng, Weiren; Lu, Xue Feng; Luan, Deyan et al.
In: Angewandte Chemie - International Edition, Vol. 59, No. 41, 05.10.2020, p. 18234-18239.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Cheng, W, Lu, XF, Luan, D & Lou, XW 2020, 'NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis', Angewandte Chemie - International Edition, vol. 59, no. 41, pp. 18234-18239. https://doi.org/10.1002/anie.202008129

Cheng, W., Lu, X. F., Luan, D., & Lou, X. W. (2020). NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis. Angewandte Chemie - International Edition, 59(41), 18234-18239. https://doi.org/10.1002/anie.202008129

Cheng W, Lu XF, Luan D , Lou XW. NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis. Angewandte Chemie - International Edition. 2020 Oct 5;59(41):18234-18239. Epub 2020 Jul 3. doi: 10.1002/anie.202008129

Cheng, Weiren ; Lu, Xue Feng ; Luan, Deyan et al. / NiMn-Based Bimetal–Organic Framework Nanosheets Supported on Multi-Channel Carbon Fibers for Efficient Oxygen Electrocatalysis. In: Angewandte Chemie - International Edition. 2020 ; Vol. 59, No. 41. pp. 18234-18239.