scholarly journals Small, Narrowly Distributed Iridium Nanoparticles Supported on Indium Tin Oxide for Efficient Anodic Water Oxidation

2018 ◽  
Vol 2 (1) ◽  
pp. 196-200 ◽  
Author(s):  
Dmitry Lebedev ◽  
Christophe Copéret
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Iridium Nanoparticles

scholarly journals Crossing the bridge from molecular catalysis to a heterogenous electrode in electrocatalytic water oxidation

2019 ◽  
Vol 116 (23) ◽  
pp. 11153-11158 ◽  
Author(s):  
Lei Wu ◽  
Animesh Nayak ◽  
Jing Shao ◽  
Thomas J. Meyer
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Polymer Network ◽  
Surface Binding ◽  
Faradaic Efficiency ◽  
Electrode Surfaces ◽  
Electrolytic Cells ◽  
Conductive Substrates ◽  
Limited Surface

Significant progress has been made in designing single-site molecular Ru(II)-polypyridyl-aqua catalysts for homogenous catalytic water oxidation. Surface binding and transfer of the catalytic reactivity onto conductive substrates provides a basis for heterogeneous applications in electrolytic cells and dye-sensitized photoelectrosynthesis cells (DSPECs). Earlier efforts have focused on phosphonic acid (-PO3H2) or carboxylic acid (-CO2H) bindings on oxide surfaces. However, issues remain with limited surface stabilities, especially in aqueous solutions at higher pH under conditions that favor water oxidation by reducing the thermodynamic barrier and accelerating the catalytic rate using atom-proton transfer (APT) pathways. Here, we address the problem by combining silane surface functionalization and surface reductive electropolymerization on mesoporous, nanofilms of indium tin oxide (ITO) on fluorine-doped tin oxide (FTO) substrates (FTO|nanoITO). FTO|nanoITO electrodes were functionalized with vinyltrimethoxysilane (VTMS) to introduce vinyl groups on the electrode surfaces by silane attachment, followed by surface electropolymerization of the vinyl-derivatized complex, [RuII(Mebimpy)(dvbpy)(OH2)]2+ (12+; Mebimpy: 2,6-bis(1-methyl-1H-benzo[d]imidazol-2-yl)pyridine; dvbpy: 5,5′-divinyl-2,2′-bipyridine), in a mechanism dominated by a grafting-through method. The surface coverage of catalyst 12+ was controlled by the number of electropolymerization cycles. The combined silane attachment/cross-linked polymer network stabilized 12+ on the electrode surface under a variety of conditions especially at pH > ∼6. Surface-grafted poly12+ was stable toward redox cycling at pH ∼ 7.5 over an ∼4-h period. Sustained heterogeneous electrocatalytic water oxidation by the electrode gave steady-state currents for at least ∼6 h with a Faradaic efficiency of ∼68% for O2 production.

scholarly journals Atomically Dispersed Iridium on Indium Tin Oxide Efficiently Catalyzes Water Oxidation

2020 ◽  
Vol 6 (7) ◽  
pp. 1189-1198
Author(s):  
Dmitry Lebedev ◽  
Roman Ezhov ◽  
Javier Heras-Domingo ◽  
Aleix Comas-Vives ◽  
Nicolas Kaeffer ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation

Development of ternary iron vanadium oxide semiconductors for applications in photoelectrochemical water oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4992-4999 ◽  
Author(s):  
Harahari Mandal ◽  
Sanjib Shyamal ◽  
Paramita Hajra ◽  
Aparajita Bera ◽  
Debasis Sariket ◽  
...  
Keyword(s):  
Thin Film ◽  
Vanadium Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Oxide Semiconductors ◽  
Coated Glass ◽  
Photoelectrochemical Water Oxidation

Herein, we report the synthesis and photoelectrochemical characterizations of n-type Fe–V-oxide semiconductors thin film via drop cast method in different proportions onto indium tin oxide coated glass followed by annealing in air at 500 °C for 3 h.

scholarly journals Chasing the Achilles’ Heel in Hybrid Systems of Diruthenium Water Oxidation Catalysts Anchored on Indium Tin Oxide: The Stability of the Anchor

ACS Catalysis ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 6235-6244 ◽  
Author(s):  
Jann Odrobina ◽  
Julius Scholz ◽  
Marcel Risch ◽  
Sebastian Dechert ◽  
Christian Jooss ◽  
...  
Keyword(s):  
Hybrid Systems ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Oxidation Catalysts ◽  
The Stability

Solution Processable Cu(II)macrocycle for the Formation of Cu2O Thin Film on Indium Tin Oxide and Its Application for Water Oxidation

2018 ◽  
Vol 122 (29) ◽  
pp. 16510-16518 ◽  
Author(s):  
Mandana Amiri ◽  
Maryam Fallahi ◽  
Abolfazl Bezaatpour ◽  
Roxana Jijie ◽  
Mehran Nozari-asbmarz ◽  
...  
Keyword(s):  
Thin Film ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Cu2o Thin Film ◽  
Solution Processable

scholarly journals Hollow α-Fe2O3 nanofibres for solar water oxidation: improving the photoelectrochemical performance by formation of α-Fe2O3/ITO-composite photoanodes

2016 ◽  
Vol 4 (47) ◽  
pp. 18444-18456 ◽  
Author(s):  
M. Einert ◽  
R. Ostermann ◽  
T. Weller ◽  
S. Zellmer ◽  
G. Garnweitner ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Solar Water ◽  
Solar Water Oxidation

Dense and hollow α-Fe2O3 nanofibre photoanodes and core–shell-like α-Fe2O3/indium-tin oxide (ITO) nanocomposite photoanodes were directly prepared via electrospinning.

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