Synthesis and Demonstration of Subnanometric Iridium Oxide as Highly Efficient and Robust Water Oxidation Catalyst

ACS Catalysis ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 5983-5986 ◽  
Author(s):  
Jingqi Guan ◽  
Deng Li ◽  
Rui Si ◽  
Shu Miao ◽  
Fuxiang Zhang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Iridium Oxide ◽  
Oxidation Catalyst ◽  
Highly Efficient

Methodology for functionalization of water oxidation catalyst IrOx nanoparticles with hydrophobic and multi-functionalized chromophores

2021 ◽  
Author(s):  
Liniquer A. Fontana ◽  
Vitor H. Rigolin ◽  
Carolyne B. Braga ◽  
Catia Ornelas ◽  
Jackson D. Megiatto
Keyword(s):  
Click Chemistry ◽  
Water Oxidation ◽  
Iridium Oxide ◽  
Water Soluble ◽  
Oxidation Catalyst ◽  
Oxide Nanoparticles

A straightforward “click” chemistry methodology for the sensitization of water soluble iridium oxide nanoparticles with hydrophobic and multi-functionalized porphyrin-based chromophores is described.

A porphyrin-stabilized iridium oxide water oxidation catalyst

2011 ◽  
Vol 89 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Benjamin D. Sherman ◽  
Smitha Pillai ◽  
Gerdenis Kodis ◽  
Jesse Bergkamp ◽  
Thomas E. Mallouk ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Catalytic Activity ◽  
Strong Interaction ◽  
Water Oxidation ◽  
Iridium Oxide ◽  
Oxidation Catalyst ◽  
Porphyrin Ring ◽  
Oxygen Quenching ◽  
Applied Potential ◽  
Colloidal Solutions

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 IrO2·nH2O. These results mark a step toward developing a porphyrin-based photoanode for use in a photoelectrochemical water-splitting cell.

scholarly journals Visible light-driven water oxidation using a covalently-linked molecular catalyst–sensitizer dyad assembled on a TiO2 electrode

2016 ◽  
Vol 7 (2) ◽  
pp. 1430-1439 ◽  
Author(s):  
Masanori Yamamoto ◽  
Lei Wang ◽  
Fusheng Li ◽  
Takashi Fukushima ◽  
Koji Tanaka ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Oxidation ◽  
Ruthenium Complex ◽  
Oxidation Catalyst ◽  
Tio2 Electrode ◽  
Molecular Catalyst ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Artificial Photosynthetic ◽  
Covalently Linked

The combination of porphyrin as a sensitizer and a ruthenium complex as a water oxidation catalyst (WOC) is promising to exploit highly efficient molecular artificial photosynthetic systems.

scholarly journals CoOx nanoparticle anchored on sulfonated-graphite as efficient water oxidation catalyst

2017 ◽  
Vol 8 (9) ◽  
pp. 6111-6116 ◽  
Author(s):  
Jingqi Guan ◽  
Chunmei Ding ◽  
Ruotian Chen ◽  
Baokun Huang ◽  
Xianwen Zhang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalyst ◽  
Oxidation Activity ◽  
Solar Water ◽  
Highly Efficient ◽  
Solar Water Oxidation

Ultrasmall CoOx nanoparticles on sulfonated graphite exhibit highly efficient water oxidation activity and can be used for electrochemical and solar water oxidation.

A facile method for the synthesis of a porous cobalt oxide–carbon hybrid as a highly efficient water oxidation catalyst

2016 ◽  
Vol 4 (5) ◽  
pp. 1819-1827 ◽  
Author(s):  
Mei Zhang ◽  
Yong-Liang Huang ◽  
Jia-Wei Wang ◽  
Tong-Bu Lu
Keyword(s):  
Catalytic Activity ◽  
Cobalt Oxide ◽  
Water Oxidation ◽  
Oxidation Catalyst ◽  
Highly Efficient

A cobalt oxide–carbon hybrid was synthesized, which exhibited outstanding chemical, photochemical and electrochemical water oxidation catalytic activity.

A high-valent di-μ-oxo dimanganese complex covalently anchored in a metal–organic framework as a highly efficient and recoverable water oxidation catalyst

2018 ◽  
Vol 54 (33) ◽  
pp. 4188-4191 ◽  
Author(s):  
Lina Zhang ◽  
Junying Chen ◽  
Ting Fan ◽  
Kui Shen ◽  
Miao Jiang ◽  
...  
Keyword(s):  
High Activity ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
Metal Organic Framework ◽  
Oxidation Catalyst ◽  
Homogeneous Catalyst ◽  
Highly Efficient ◽  
Metal Organic ◽  
High Valent ◽  
Organic Framework

A biomimetic homogeneous catalyst is successfully anchored inside MOFs, exhibiting high activity and reliable durability in the water oxidation reaction.

scholarly journals Molybdenum-Doped Manganese Oxide as a Highly Efficient and Economical Water Oxidation Catalyst

ACS Catalysis ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 2074-2087 ◽  
Author(s):  
S. Esmael Balaghi ◽  
C. A. Triana ◽  
Greta R. Patzke
Keyword(s):  
Manganese Oxide ◽  
Water Oxidation ◽  
Oxidation Catalyst ◽  
Highly Efficient

Domain structure for an amorphous iridium-oxide water-oxidation catalyst characterized by X-ray pair distribution function analysis

2014 ◽  
Vol 16 (5) ◽  
pp. 1814-1819 ◽  
Author(s):  
Jier Huang ◽  
James D. Blakemore ◽  
Diego Fazi ◽  
Oleksandr Kokhan ◽  
Nathan D. Schley ◽  
...  
Keyword(s):  
Distribution Function ◽  
Domain Structure ◽  
Water Oxidation ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Iridium Oxide ◽  
Oxidation Catalyst ◽  
X Ray

Cobalt Oxide Electrode Doped with Iridium Oxide as Highly Efficient Water Oxidation Electrode

ACS Catalysis ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 5525-5529 ◽  
Author(s):  
Eunju Lee Tae ◽  
Jihye Song ◽  
A Reum Lee ◽  
Caroline Hewon Kim ◽  
Seokjun Yoon ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Water Oxidation ◽  
Iridium Oxide ◽  
Oxide Electrode ◽  
Highly Efficient
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