Open AccessDetangling Catalyst Modification Reactions from the Oxygen Evolution Reaction by Online Mass Spectrometry
Author(s) -
Paula Abril,
M. Pilar del Rı́o,
Cristina Tejel,
Tiny W.G.M Verhoeven,
J. W. Niemantsverdriet,
Cornelis J. M. van der Ham,
Konstantin G. Kottrup,
Dennis G. H. Hetterscheid
Publication year - 2016
Publication title -
acs catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.898
H-Index - 198
ISSN - 2155-5435
DOI - 10.1021/acscatal.6b02800
Subject(s) - iridium , catalysis , oxygen evolution , mass spectrometry , electrochemistry , chemistry , oxygen , x ray photoelectron spectroscopy , oxide , inorganic chemistry , chemical engineering , organic chemistry , chromatography , electrode , engineering
Here we showcase the synthesis and catalytic response of the anionic iridium(III) complex [IrCl(pic)(MeOH)] ([1], pic = picolinate) toward the evolution of oxygen. Online electrochemical mass spectrometry experiments illustrate that an initial burst of CO due to catalyst degradation is expelled before the oxygen evolution reaction commences. Electrochemical features and XPS analysis illustrate the presence of iridium oxide, which is the true active species.Generous financial support from the MINECO/FEDER (CTQ2014-53033-P; C.T.) and Gobierno de Aragon/FSE (GA/FSE, Inorganic Molecular Architecture Group, E70; C.T.)\udis gratefully acknowledged. P.A. and M.P.d.R. thank the MINECO/FEDER for a fellowship and a JdC contract, respectively.Peer Reviewe
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