Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation

Natalia Sanchez Morlanes, Khurram Saleem Joya, Kazuhiro Takanabe, Valentin Rodionov

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


Efficient electrocatalysis of water oxidation under mild conditions at neutral pH was achieved by a fluorinated cobalt phthalocyanine immobilized on fluorine-doped tin oxide (FTO) surfaces with an onset potential at 1.7 V vs. RHE. Spectroscopic, electrochemical, and inhibition studies indicate that phthalocyanine molecular species are the operational active sites. Neither free cobalt ions nor heterogeneous cobalt oxide particles or films were observed. During long-term controlled-potential electrolysis at 2 V vs. RHE (phosphate buffer, pH 7), electrocatalytic water oxidation was sustained for at least 8 h (TON ≈ 1.0 × 105), producing about 4 μmol O2 h-1 cm-2 with a turnover frequency (TOF) of about 3.6 s-1 and no measurable catalyst degradation.
Original languageEnglish (US)
Pages (from-to)49-52
Number of pages4
JournalEuropean Journal of Inorganic Chemistry
Issue number1
StatePublished - Dec 8 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Funding from King Abdullah University of Science and Technology Office of Competitive Research (KAUST OCRF) (award project "Design and Engineering of Photocatalytic Material Structures for Solar Hydrogen") is acknowledged with thanks.

ASJC Scopus subject areas

  • Inorganic Chemistry


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