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Microporous core-shell Co-11(HPO3)(8)(OH)(6)/Co-11(PO3)(8)O-6 nanowires for highly efficient electrocatalytic oxygen evolution reaction
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Number of Authors: 122019 (English)In: Applied Catalysis B: Environmental, ISSN 0926-3373, E-ISSN 1873-3883, Vol. 259, article id 118091Article in journal (Refereed) Published
Abstract [en]

Exploring high-efficient oxygen evolution reaction (OER) catalysts is critical for producing clean H-2 fuel through water splitting. Co and P involved Co-Pi and cobalt phosphide OER catalysts attracted tremendous attention, while limited report on cobalt phosphite as an OER catalyst. Herein, a novel cobalt phosphite nanowires with microporous 1D channel have been succsessfully discovered with remarkable catalytic performance of a low overpotential of (similar to)340 mV and Tafel slope of 60 mV dec(-1) at 10 mA cm(-2) at pH 14. Through comprehensive structural characterization, the effective species has been clearly illustrated to be the in-situ formed heterostructural Co-11(HPO3)(8)(OH)(6)/Co-11(PO3)(8)O-6 core-shell structure nanowires. This work fills the gap for exploring high efficient cobalt phosphites OER catalysts under akaline condition and paves the way for exploring novel high efficiency waster splitting catalysts.

Place, publisher, year, edition, pages
2019. Vol. 259, article id 118091
Keywords [en]
Oxygen evolution reaction, Nanowires, Heterostructure, Core-shell, Cobalt phosphite
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-175921DOI: 10.1016/j.apcatb.2019.118091ISI: 000488308800068OAI: oai:DiVA.org:su-175921DiVA, id: diva2:1371533
Available from: 2019-11-20 Created: 2019-11-20 Last updated: 2019-11-20Bibliographically approved

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Luo, YiFan, Ke
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Department of Materials and Environmental Chemistry (MMK)
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