Differentiating Homogeneous and Heterogeneous Water Oxidation Catalysis: Confirmation that [Co4(H2O)2(α-PW9O34)2]10– Is a Molecular Water Oxidation Catalyst

2013 ◽  
Vol 135 (38) ◽  
pp. 14110-14118 ◽  
Author(s):  
James W. Vickers ◽  
Hongjin Lv ◽  
Jordan M. Sumliner ◽  
Guibo Zhu ◽  
Zhen Luo ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Molecular Water ◽  
Water Oxidation Catalysis

Efficient electrochemical water oxidation catalysis by nanostructured Mn2O3

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24200-24204 ◽  
Author(s):  
A. Singh ◽  
D. Roy Chowdhury ◽  
S. S. Amritphale ◽  
N. Chandra ◽  
I. B. Singh
Keyword(s):  
Surface Area ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Water Oxidation Catalysis

Hydrothermally synthesized Mn2O3nanorods have been demonstrated as an efficient electrochemical water oxidation catalyst over MnO2despite the fact that later has a higher surface area.

Concentrated-acid triggered superfast generation of porous amorphous cobalt oxide toward efficient water oxidation catalysis in alkaline solution

2019 ◽  
Vol 55 (12) ◽  
pp. 1797-1800 ◽  
Author(s):  
Xuqiang Ji ◽  
Yujia He ◽  
Jingquan Liu
Keyword(s):  
Cobalt Oxide ◽  
Alkaline Solution ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Carbon Cloth ◽  
Water Oxidation Catalysis

Amorphous cobalt oxide on carbon cloth (AMO-CoO/CC) was prepared as an excellent water-oxidation catalyst with 50 mV less overpotential at 10 mA cm−2 than highly-crystallized Co3O4 in 1.0 M KOH.

scholarly journals Molecular water oxidation catalysis by zwitterionic carboxylate bridge-functionalized bis-NHC iridium complexes

2019 ◽  
Vol 9 (6) ◽  
pp. 1437-1450 ◽  
Author(s):  
Raquel Puerta-Oteo ◽  
M. Victoria Jiménez ◽  
Jesús J. Pérez-Torrente
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Molecular Water ◽  
Iridium Complexes ◽  
Intermediate Species ◽  
Carboxylate Bridge ◽  
Water Oxidation Catalysis ◽  
High Valent

Carboxylate functionalized bis-NHC ligands allow for the stabilization of high-valent iridium intermediate species involved in homogeneous water oxidation catalysis.

scholarly journals A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation

2019 ◽  
Vol 117 (23) ◽  
pp. 12564-12571 ◽  
Author(s):  
Degao Wang ◽  
Fujun Niu ◽  
Michael J. Mortelliti ◽  
Matthew V. Sheridan ◽  
Benjamin D. Sherman ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Photocurrent Density ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Photoelectrochemical Cells ◽  
Half Cell ◽  
Dye Sensitized ◽  
Light Absorber ◽  
Water Oxidation Catalysis

In the development of photoelectrochemical cells for water splitting or CO2reduction, a major challenge is O2evolution at photoelectrodes that, in behavior, mimic photosystem II. At an appropriate semiconductor electrode, a water oxidation catalyst must be integrated with a visible light absorber in a stable half-cell configuration. Here, we describe an electrode consisting of a light absorber, an intermediate electron donor layer, and a water oxidation catalyst for sustained light driven water oxidation catalysis. In assembling the electrode on nanoparticle SnO2/TiO2electrodes, a Ru(II) polypyridyl complex was used as the light absorber, NiO was deposited as an overlayer, and a Ru(II) 2,2′-bipyridine-6,6′-dicarboxylate complex as the water oxidation catalyst. In the final electrode, addition of the NiO overlayer enhanced performance toward water oxidation with the final electrode operating with a 1.1 mA/cm2photocurrent density for 2 h without decomposition under one sun illumination in a pH 4.65 solution. We attribute the enhanced performance to the role of NiO as an electron transfer mediator between the light absorber and the catalyst.

A Co(ii)–Ru(ii) dyad relevant to light-driven water oxidation catalysis

2014 ◽  
Vol 16 (24) ◽  
pp. 12000-12007 ◽  
Author(s):  
Alejandro Montellano López ◽  
Mirco Natali ◽  
Erica Pizzolato ◽  
Claudio Chiorboli ◽  
Marcella Bonchio ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Potential Application ◽  
Artificial Photosynthesis ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Water Oxidation Catalysis

The covalent anchoring of a Co(ii) water oxidation catalyst to a Ru(ii) photosensitizer with potential application in artificial photosynthesis.

scholarly journals High-Throughput Screening and Rational Design to Drive Discovery in Molecular Water Oxidation Catalysis

2021 ◽  
Author(s):  
Michael Craig ◽  
Max Garcia-Melchor
Keyword(s):  
Density Functional Theory ◽  
Water Oxidation ◽  
High Throughput Screening ◽  
Density Functional ◽  
Rational Design ◽  
Oxidation Catalysis ◽  
Molecular Water ◽  
Future Research ◽  
Functional Theory ◽  
Water Oxidation Catalysis

In this work we study a library of 444 hypothetical complexes for the OER composed of distinct metals (Cr, Mn, Fe, Ru, Co & Ni) and ligand skeletons. These were analysed using density functional theory via different functionals to drive interesting insights and suggestions for future research of this reaction.

scholarly journals Hybrid compound based on diethylenetriaminecopper(ii) cations and scarce V-monosubstituted β-octamolybdate as water oxidation catalyst

RSC Advances ◽  
2021 ◽  
Vol 11 (51) ◽  
pp. 32119-32125
Author(s):  
Halyna I. Buvailo ◽  
Valeriya G. Makhankova ◽  
Vladimir N. Kokozay ◽  
Iryna V. Omelchenko ◽  
Svitlana V. Shishkina ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Hybrid Compound ◽  
Water Oxidation Catalysis

A new hybrid compound (NH4){[Cu(dien)(H2O)2]2[β-VMo7O26]}·1.5H2O was employed in homogeneous water oxidation catalysis. At pH 8.0, its efficiency attains 0.19 turnovers per second, supported by the relatively mild water oxidation overpotential of 0.54 V.

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