A porphyrin-stabilized iridium oxide water oxidation catalyst

Benjamin D. Sherman; Smitha Pillai; Gerdenis Kodis; Jesse Bergkamp; Thomas E. Mallouk; Devens Gust; Thomas A. Moore; Ana L. Moore

doi:10.1139/V10-118

A porphyrin-stabilized iridium oxide water oxidation catalyst

Benjamin D. Sherman, Smitha Pillai, Gerdenis Kodis, Jesse Bergkamp, Thomas E. Mallouk, Devens Gust, Thomas A. Moore, Ana L. Moore

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

17 Scopus citations

Abstract

Colloidal solutions of iridium oxide hydrate (IrO₂· nH₂O) were formed using porphyrin stabilizers bearing malonate-like functional groups at each of the four meso positions of the porphyrin ring. Cyclic voltammetry and monitoring of solution oxygen concentrations under constant applied potential demonstrated the electrochemical catalytic activity of the porphyrin-IrO₂·nH₂O complexes for the oxidation of water to oxygen. Quenching of the porphyrin fluorescence in the complex implies strong interaction between the porphyrin and the IrO ₂·nH₂O. These results mark a step toward developing a porphyrin-based photoanode for use in a photoelectrochemical water-splitting cell.

Original language	English (US)
Pages (from-to)	152-157
Number of pages	6
Journal	Canadian Journal of Chemistry
Volume	89
Issue number	2
DOIs	https://doi.org/10.1139/V10-118
State	Published - 2011

All Science Journal Classification (ASJC) codes

Catalysis
General Chemistry
Organic Chemistry

UN SDGs

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

Access to Document

10.1139/V10-118

Cite this

@article{bdc56ca9831643e3a111d46df16eb4f0,

title = "A porphyrin-stabilized iridium oxide water oxidation catalyst",

abstract = "Colloidal solutions of iridium oxide hydrate (IrO2· nH2O) were formed using porphyrin stabilizers bearing malonate-like functional groups at each of the four meso positions of the porphyrin ring. Cyclic voltammetry and monitoring of solution oxygen concentrations under constant applied potential demonstrated the electrochemical catalytic activity of the porphyrin-IrO2·nH2O complexes for the oxidation of water to oxygen. Quenching of the porphyrin fluorescence in the complex implies strong interaction between the porphyrin and the IrO 2·nH2O. These results mark a step toward developing a porphyrin-based photoanode for use in a photoelectrochemical water-splitting cell.",

author = "Sherman, {Benjamin D.} and Smitha Pillai and Gerdenis Kodis and Jesse Bergkamp and Mallouk, {Thomas E.} and Devens Gust and Moore, {Thomas A.} and Moore, {Ana L.}",

year = "2011",

doi = "10.1139/V10-118",

language = "English (US)",

volume = "89",

pages = "152--157",

journal = "Canadian Journal of Chemistry",

issn = "0008-4042",

publisher = "National Research Council of Canada",

number = "2",

}

TY - JOUR

T1 - A porphyrin-stabilized iridium oxide water oxidation catalyst

AU - Sherman, Benjamin D.

AU - Pillai, Smitha

AU - Kodis, Gerdenis

AU - Bergkamp, Jesse

AU - Mallouk, Thomas E.

AU - Gust, Devens

AU - Moore, Thomas A.

AU - Moore, Ana L.

PY - 2011

Y1 - 2011

N2 - Colloidal solutions of iridium oxide hydrate (IrO2· nH2O) were formed using porphyrin stabilizers bearing malonate-like functional groups at each of the four meso positions of the porphyrin ring. Cyclic voltammetry and monitoring of solution oxygen concentrations under constant applied potential demonstrated the electrochemical catalytic activity of the porphyrin-IrO2·nH2O complexes for the oxidation of water to oxygen. Quenching of the porphyrin fluorescence in the complex implies strong interaction between the porphyrin and the IrO 2·nH2O. These results mark a step toward developing a porphyrin-based photoanode for use in a photoelectrochemical water-splitting cell.

AB - Colloidal solutions of iridium oxide hydrate (IrO2· nH2O) were formed using porphyrin stabilizers bearing malonate-like functional groups at each of the four meso positions of the porphyrin ring. Cyclic voltammetry and monitoring of solution oxygen concentrations under constant applied potential demonstrated the electrochemical catalytic activity of the porphyrin-IrO2·nH2O complexes for the oxidation of water to oxygen. Quenching of the porphyrin fluorescence in the complex implies strong interaction between the porphyrin and the IrO 2·nH2O. These results mark a step toward developing a porphyrin-based photoanode for use in a photoelectrochemical water-splitting cell.

UR - http://www.scopus.com/inward/record.url?scp=79951471889&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79951471889&partnerID=8YFLogxK

U2 - 10.1139/V10-118

DO - 10.1139/V10-118

M3 - Article

AN - SCOPUS:79951471889

SN - 0008-4042

VL - 89

SP - 152

EP - 157

JO - Canadian Journal of Chemistry

JF - Canadian Journal of Chemistry

IS - 2

ER -

A porphyrin-stabilized iridium oxide water oxidation catalyst

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this