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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 | Schools: | School of Chemical and Biomedical Engineering | 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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LXW Unveiling the Activity Origin of Electrocatalytic Oxygen Evolution over Isolated Ni Atoms Supported on N doped Carbon Matrix.pdf | 884.4 kB | Adobe PDF | View/Open |
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