scholarly journals Fluorine‐Doped Tin Oxide/Alumina as Long‐Term Robust Conducting Support for Earth‐Abundant Water Oxidation Electrocatalysts

2019 ◽  
Vol 6 (8) ◽  
pp. 2282-2289 ◽  
Author(s):  
Felipe A. Garcés‐Pineda ◽  
Jesús González‐Cobos ◽  
Mabel Torrens ◽  
José R. Galán‐Mascarós
Keyword(s):  
Tin Oxide ◽  
Water Oxidation ◽  
Earth Abundant

scholarly journals Photocatalytic Water Oxidation Using Manganese Compounds Immobilized in Nafion Polymer Membranes

2011 ◽  
Vol 64 (9) ◽  
pp. 1221 ◽  
Author(s):  
Karin J. Young ◽  
Yunlong Gao ◽  
Gary W. Brudvig
Keyword(s):  
Tin Oxide ◽  
Water Oxidation ◽  
Polymer Membranes ◽  
Wavelength Dependence ◽  
Applied Potential ◽  
Solvent Water ◽  
Earth Abundant ◽  
Manganese Dioxide Nanoparticles ◽  
Glass Electrodes ◽  
Manganese Compounds

Robust water oxidation catalysts using earth abundant metals are required as part of an overall scheme to convert sunlight into fuels. Here, we report the immobilization of [Mn4IVO5(terpy)4(H2O)2](ClO4)6 (terpy = 2,2′;6′,2′′-terpyridine), [Mn4O6(tacn)4](ClO4)4 (tacn = 1,4,7-triazacyclononane), and manganese dioxide nanoparticles in Nafion on fluorine-doped tin oxide conducting glass electrodes. The electrodes are illuminated with white light in the presence of an applied potential and the resulting photocurrent is assigned to the oxidation of solvent water. Photodecomposition of the tetrameric complexes results in a material that is more active for light-driven electrooxidation of water. The reactivity, wavelength dependence, and stability of the compounds in Nafion under illumination are discussed.

scholarly journals Correction: Enhanced photoelectrochemical water oxidation via atomic layer deposition of TiO2on fluorine-doped tin oxide nanoparticle films

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12226-12226 ◽  
Author(s):  
Isvar A. Cordova ◽  
Qing Peng ◽  
Isa L. Ferrall ◽  
Adam J. Rieth ◽  
Paul G. Hoertz ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Tin Oxide ◽  
Water Oxidation ◽  
Atomic Layer ◽  
Nanoparticle Films ◽  
Layer Deposition ◽  
Oxide Nanoparticle ◽  
Photoelectrochemical Water Oxidation

scholarly journals Aromaticity Driven Electrocatalytic Water Oxidation by a Phosphorus-Nitrogen PN3-Pincer Cobalt Complex

2019 ◽  
Author(s):  
Pradip K. Das ◽  
Sarmistha Bhunia ◽  
Priyanka Chakraborty ◽  
Atanu Rana ◽  
Abhishek Dey ◽  
...  
Keyword(s):  
Water Oxidation ◽  
High Efficiency ◽  
Cobalt Complex ◽  
Potential Jump ◽  
Onset Potential ◽  
New Strategy ◽  
Earth Abundant ◽  
High Valent ◽  
Lower Overpotential ◽  
Cobalt Species

Water oxidation is the primary step in both natural and artificial photosynthesis to convert solar energy in into chemical fuels. Herein, we report the first cobalt-based pincer catalyst for electrolytic water oxidation at neutral pH with high efficiency under electrochemical conditions. Most importantly, ligand (pseudo)aromaticity is identified to play an important role in the electrocatalysis. A significant potential jump (~300 mV) was achieved towards a lower positive value when the aromatized cobalt complex was transformed to a (pseudo)dearomatized cobalt species. This complex catalyzes the water oxidation in its high valent oxidation state at a much lower overpotential (~ 340 mV vs. NHE) based on the onset potential (0.5 mA/cm<sup>2</sup>) of catalysis at pH 10.5, outperforming all the other literature systems. These observations may provide a new strategy for the design of earth-abundant transition metal-based water oxidation catalysts.

Ultrathin alumina passivation for improved photoelectrochemical water oxidation catalysis of tin oxide sensitized by a phosphonate-functionalized perylene diimide first without, and then with, CoOy

2021 ◽  
Author(s):  
Carly F. Jewell ◽  
Ashwanth Subramanian ◽  
Chang-Yong Nam ◽  
Richard G. Finke
Keyword(s):  
Catalytic Activity ◽  
Tin Oxide ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Perylene Diimide ◽  
Water Oxidation Catalysis ◽  
Photoelectrochemical Water Oxidation

Deposition of an ultrathin AlOx overlayer applied by ALD on the PMPDI/SnO2 photoanode improves the photoactivity and catalytic activity of the system. ALD AlOx also helps support the understanding of the “anti-catalysis” behavior of added CoOy.

scholarly journals Photocatalytic water oxidation with a Prussian blue modified brown TiO2

2021 ◽  
Author(s):  
Gulsum Gundogdu ◽  
T. Gamze Ulusoy Ghobadi ◽  
Sina Sadigh Akbari ◽  
Ekmel Ozbay ◽  
Ferdi Karadas
Keyword(s):  
Prussian Blue ◽  
Water Oxidation ◽  
Prussian Blue Analogue ◽  
Earth Abundant

A CoFe Prussian blue analogue is coupled with brown TiO2 nanoparticles to achieve an earth-abundant photocatalytic water oxidation assembly.

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