Abstract
The copper(II) complex Cu(pyalk)2 (pyalk = 2-pyridyl-2-propanoate) is a robust homogeneous water-oxidation electrocatalyst under basic conditions (pH > 10.4). Water oxidation occurs at a relatively low overpotential for copper of 520-580 mV with a turnover frequency of ∼0.7 s-1. Controlled potential electrolysis experiments over 12 h at 1.1 V vs NHE resulted in the formation of >30 catalytic turnovers of O2 with only ∼20% catalyst degradation. The robustness of the catalyst under fairly harsh conditions and the low overpotential further highlight the oxidation resistance and strong donor character of pyalk.
| Original language | English |
|---|---|
| Pages (from-to) | 3384-3387 |
| Number of pages | 4 |
| Journal | ACS Catalysis |
| Volume | 7 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 5 2017 |
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Keywords
- copper electrocatalysis
- homogeneous electrocatalysis
- OER
- oxygen-evolution reaction
- water-oxidation catalysis
ASJC Scopus subject areas
- Catalysis
Cite this
Electrocatalytic Water Oxidation by a Copper(II) Complex of an Oxidation-Resistant Ligand. / Fisher, Katherine J.; Materna, Kelly L.; Mercado, Brandon Q.; Crabtree, Robert H.; Brudvig, Gary W.
In: ACS Catalysis, Vol. 7, No. 5, 05.05.2017, p. 3384-3387.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrocatalytic Water Oxidation by a Copper(II) Complex of an Oxidation-Resistant Ligand
AU - Fisher, Katherine J.
AU - Materna, Kelly L.
AU - Mercado, Brandon Q.
AU - Crabtree, Robert H.
AU - Brudvig, Gary W
PY - 2017/5/5
Y1 - 2017/5/5
N2 - The copper(II) complex Cu(pyalk)2 (pyalk = 2-pyridyl-2-propanoate) is a robust homogeneous water-oxidation electrocatalyst under basic conditions (pH > 10.4). Water oxidation occurs at a relatively low overpotential for copper of 520-580 mV with a turnover frequency of ∼0.7 s-1. Controlled potential electrolysis experiments over 12 h at 1.1 V vs NHE resulted in the formation of >30 catalytic turnovers of O2 with only ∼20% catalyst degradation. The robustness of the catalyst under fairly harsh conditions and the low overpotential further highlight the oxidation resistance and strong donor character of pyalk.
AB - The copper(II) complex Cu(pyalk)2 (pyalk = 2-pyridyl-2-propanoate) is a robust homogeneous water-oxidation electrocatalyst under basic conditions (pH > 10.4). Water oxidation occurs at a relatively low overpotential for copper of 520-580 mV with a turnover frequency of ∼0.7 s-1. Controlled potential electrolysis experiments over 12 h at 1.1 V vs NHE resulted in the formation of >30 catalytic turnovers of O2 with only ∼20% catalyst degradation. The robustness of the catalyst under fairly harsh conditions and the low overpotential further highlight the oxidation resistance and strong donor character of pyalk.
KW - copper electrocatalysis
KW - homogeneous electrocatalysis
KW - OER
KW - oxygen-evolution reaction
KW - water-oxidation catalysis
UR - http://www.scopus.com/inward/record.url?scp=85020164427&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85020164427&partnerID=8YFLogxK
U2 - 10.1021/acscatal.7b00494
DO - 10.1021/acscatal.7b00494
M3 - Article
AN - SCOPUS:85020164427
VL - 7
SP - 3384
EP - 3387
JO - ACS Catalysis
JF - ACS Catalysis
SN - 2155-5435
IS - 5
ER -