Activation pathways taking place at molecular copper precatalysts for the oxygen evolution reaction

C.J.M. van der Ham; F. Işık; T.W.G.M. Verhoeven; J.W. Niemantsverdriet; D.G.H. Hetterscheid

doi:10.1016/j.cattod.2016.12.042

Activation pathways taking place at molecular copper precatalysts for the oxygen evolution reaction

C.J.M. van der Ham, F. Işık, T.W.G.M. Verhoeven, J.W. Niemantsverdriet, D.G.H. Hetterscheid

Inorganic Materials & Catalysis

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

20 Citations (Scopus)

278 Downloads (Pure)

Abstract

The activation processes of [Cu^II(bdmpza)₂] in the water oxidation reaction were investigated using cyclic voltammetry and chronoamperometry. Two different paths wherein CuO is formed were distinguished. [Cu^II(bdmpza)₂] can be oxidized at high potentials to form CuO, which was observed by a slight increase in catalytic current over time. When [Cu^II(bdmpza)₂] is initially reduced at low potentials, a more active water oxidation catalyst is generated, yielding high catalytic currents from the moment a sufficient potential is applied. This work highlights the importance of catalyst pre-treatment and the choice of the experimental conditions in water oxidation catalysis using copper complexes.

Original language	English
Pages (from-to)	33-38
Number of pages	6
Journal	Catalysis Today
Volume	290
Issue number	15 July 2017
DOIs	https://doi.org/10.1016/j.cattod.2016.12.042
Publication status	Published - 15 Jul 2017

Keywords

Catalyst activation
Copper oxide
Water oxidation

Access to Document

10.1016/j.cattod.2016.12.042

Publishers versionFinal published version, 1.07 MB

Cite this

@article{189e0708d2014d42ad69cf68d79fb5d0,

title = "Activation pathways taking place at molecular copper precatalysts for the oxygen evolution reaction",

abstract = "The activation processes of [CuII(bdmpza)2] in the water oxidation reaction were investigated using cyclic voltammetry and chronoamperometry. Two different paths wherein CuO is formed were distinguished. [CuII(bdmpza)2] can be oxidized at high potentials to form CuO, which was observed by a slight increase in catalytic current over time. When [CuII(bdmpza)2] is initially reduced at low potentials, a more active water oxidation catalyst is generated, yielding high catalytic currents from the moment a sufficient potential is applied. This work highlights the importance of catalyst pre-treatment and the choice of the experimental conditions in water oxidation catalysis using copper complexes.",

keywords = "Catalyst activation, Copper oxide, Water oxidation",

author = "{van der Ham}, C.J.M. and F. I{\c s}ık and T.W.G.M. Verhoeven and J.W. Niemantsverdriet and D.G.H. Hetterscheid",

year = "2017",

month = jul,

day = "15",

doi = "10.1016/j.cattod.2016.12.042",

language = "English",

volume = "290",

pages = "33--38",

journal = "Catalysis Today",

issn = "0920-5861",

publisher = "Elsevier B.V.",

number = "15 July 2017",

}

TY - JOUR

T1 - Activation pathways taking place at molecular copper precatalysts for the oxygen evolution reaction

AU - van der Ham, C.J.M.

AU - Işık, F.

AU - Verhoeven, T.W.G.M.

AU - Niemantsverdriet, J.W.

AU - Hetterscheid, D.G.H.

PY - 2017/7/15

Y1 - 2017/7/15

N2 - The activation processes of [CuII(bdmpza)2] in the water oxidation reaction were investigated using cyclic voltammetry and chronoamperometry. Two different paths wherein CuO is formed were distinguished. [CuII(bdmpza)2] can be oxidized at high potentials to form CuO, which was observed by a slight increase in catalytic current over time. When [CuII(bdmpza)2] is initially reduced at low potentials, a more active water oxidation catalyst is generated, yielding high catalytic currents from the moment a sufficient potential is applied. This work highlights the importance of catalyst pre-treatment and the choice of the experimental conditions in water oxidation catalysis using copper complexes.

AB - The activation processes of [CuII(bdmpza)2] in the water oxidation reaction were investigated using cyclic voltammetry and chronoamperometry. Two different paths wherein CuO is formed were distinguished. [CuII(bdmpza)2] can be oxidized at high potentials to form CuO, which was observed by a slight increase in catalytic current over time. When [CuII(bdmpza)2] is initially reduced at low potentials, a more active water oxidation catalyst is generated, yielding high catalytic currents from the moment a sufficient potential is applied. This work highlights the importance of catalyst pre-treatment and the choice of the experimental conditions in water oxidation catalysis using copper complexes.

KW - Catalyst activation

KW - Copper oxide

KW - Water oxidation

UR - http://www.scopus.com/inward/record.url?scp=85009160509&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2016.12.042

DO - 10.1016/j.cattod.2016.12.042

M3 - Article

AN - SCOPUS:85009160509

SN - 0920-5861

VL - 290

SP - 33

EP - 38

JO - Catalysis Today

JF - Catalysis Today

IS - 15 July 2017

ER -

Activation pathways taking place at molecular copper precatalysts for the oxygen evolution reaction

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this