Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147390
Title: NiMn-based bimetal-organic framework nanosheets supported on multi-channel carbon fibers for efficient oxygen electrocatalysis
Authors: Cheng, Weiren
Lu, Xue Feng
Luan, Deyan
Lou, David Xiong Wen
Keywords: Engineering::Chemical engineering
Engineering::Materials
Issue Date: 2020
Source: Cheng, W., Lu, X. F., Luan, D. & Lou, D. 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://dx.doi.org/10.1002/anie.202008129
Journal: Angewandte Chemie International Edition
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.
URI: https://hdl.handle.net/10356/147390
ISSN: 1433-7851
DOI: 10.1002/anie.202008129
Rights: This is the peer reviewed version of the following article: Cheng, W., Lu, X. F., Luan, D. & Lou, D. 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://dx.doi.org/10.1002/anie.202008129, which has been published in final form at https://doi.org/10.1002/anie.202008129. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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