Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/138653
Title: Unveiling the activity origin of electrocatalytic oxygen evolution over isolated Ni atoms supported on a N-doped carbon matrix
Authors: Zhang, Huabin
Liu, Yanyu
Chen, Tao
Zhang, Jintao
Zhang, Jing
Lou, David Xiong Wen
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Zhang, H., Liu, Y., Chen, T., Zhang, J., Zhang, J., & Lou, D. X. W. (2019). Unveiling the activity origin of electrocatalytic oxygen evolution over isolated Ni atoms supported on a N-doped carbon matrix. Advanced Materials, 31(48), 1904548-. doi:10.1002/adma.201904548
Journal: Advanced Materials
Abstract: Exploring highly efficient electrocatalysts for the oxygen evolution reaction (OER) and unveiling their activity origin are pivotal for energy conversion technologies. Herein, atomically distributed Ni sites over a N-doped hollow carbon matrix are reported as a promising electrocatalyst for OER in alkaline conditions. Significantly boosted activity is observed after the decoration of the active Ni sites with well-controlled coordination geometry. Results of X-ray absorption spectroscopy investigation and density functional theory (DFT) calculation reveal that the effective electronic coupling via the Ni-N coordination can move down the Fermi level and lower the adsorption energy of intermediates, thus resulting in the facilitated OER kinetics.
URI: https://hdl.handle.net/10356/138653
ISSN: 0935-9648
DOI: 10.1002/adma.201904548
Rights: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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