Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation

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

doi:10.1002/ejic.201403015

Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation

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

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	49-52
Number of pages	4
Journal	European Journal of Inorganic Chemistry
Volume	2015
Issue number	1
DOIs	https://doi.org/10.1002/ejic.201403015
State	Published - 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

Access to Document

10.1002/ejic.201403015

Cite this

@article{f53d1f7207a4453c892eba39917ea8f8,

title = "Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation",

abstract = "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.",

author = "Morlanes, {Natalia Sanchez} and Joya, {Khurram Saleem} and Kazuhiro Takanabe and Valentin Rodionov",

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.",

year = "2014",

month = dec,

day = "8",

doi = "10.1002/ejic.201403015",

language = "English (US)",

volume = "2015",

pages = "49--52",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag",

number = "1",

}

TY - JOUR

T1 - Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation

AU - Morlanes, Natalia Sanchez

AU - Joya, Khurram Saleem

AU - Takanabe, Kazuhiro

AU - Rodionov, Valentin

N1 - 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.

PY - 2014/12/8

Y1 - 2014/12/8

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/563914

UR - http://doi.wiley.com/10.1002/ejic.201403015

UR - http://www.scopus.com/inward/record.url?scp=84920719166&partnerID=8YFLogxK

U2 - 10.1002/ejic.201403015

DO - 10.1002/ejic.201403015

M3 - Article

SN - 1434-1948

VL - 2015

SP - 49

EP - 52

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 1

ER -

Perfluorinated cobalt phthalocyanine effectively catalyzes water electrooxidation

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this