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

  • Chwen Haw Liao
  • , Kun Fan
  • , Song Song Bao
  • , Hao Fan
  • , Xi Zhang Wang
  • , Zheng Hu
  • , Mohamedally Kurmoo
  • , Li Min Zheng
  • Nanjing University
  • Université de Strasbourg

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

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.

Original languageEnglish
Pages (from-to)13920-13923
Number of pages4
JournalChemical Communications
Volume55
Issue number92
DOIs
StatePublished - 2019
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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