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Issue 92, 2019
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From a layered iridium(iii)–cobalt(ii) organophosphonate to an efficient oxygen-evolution-reaction electrocatalyst

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Abstract

Bimetallic MOF precursors can produce a homogeneous distribution of mixed-metal oxides after calcination, and thus may provide high efficiency as electrocatalysts in the water splitting process. We designed a layered bimetallic-organophosphonate containing Ir, Co and P because the metal-oxides are well-known for their efficiency in the oxygen-evolution reaction (OER), especially when the phosphate acts as a proton carrier. We describe the structure of the MOF and characteristics of the calcined form, which has outstanding OER characteristics in 1.0 M KOH with an overpotential of 317.7 mV at 10 mA cm−2 and a low Tafel slope of 59.1 mV dec−1.

Graphical abstract: From a layered iridium(iii)–cobalt(ii) organophosphonate to an efficient oxygen-evolution-reaction electrocatalyst

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Publication details

The article was received on 08 Aug 2019, accepted on 25 Oct 2019 and first published on 25 Oct 2019


Article type: Communication
DOI: 10.1039/C9CC06164A
Chem. Commun., 2019,55, 13920-13923

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    From a layered iridium(III)–cobalt(II) organophosphonate to an efficient oxygen-evolution-reaction electrocatalyst

    C. Liao, K. Fan, S. Bao, H. Fan, X. Wang, Z. Hu, M. Kurmoo and L. Zheng, Chem. Commun., 2019, 55, 13920
    DOI: 10.1039/C9CC06164A

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