Remarkable Improvement in Water Oxidation Catalysis by Moderate Heat Treatment of a Crystalline Silver-Based Thin Film Developed In-Situ From Silver-ions in Acetate Solution

2018 ◽  
Vol 3 (2) ◽  
pp. 678-682 ◽  
Author(s):  
Samit Majumder ◽  
Ashraf Abdel Haleem ◽  
Perumandla Nagaraju ◽  
Yoshinori Naruta
Keyword(s):  
Thin Film ◽  
Heat Treatment ◽  
Water Oxidation ◽  
Silver Ions ◽  
Oxidation Catalysis ◽  
Acetate Solution ◽  
Remarkable Improvement ◽  
Water Oxidation Catalysis

scholarly journals Water oxidation catalysis: an amorphous quaternary Ba-Sr-Co-Fe oxide as a promising electrocatalyst for the oxygen-evolution reaction

2016 ◽  
Vol 52 (7) ◽  
pp. 1513-1516 ◽  
Author(s):  
Cuijuan Zhang ◽  
Curtis P. Berlinguette ◽  
Simon Trudel
Keyword(s):  
Thin Film ◽  
Oxide Film ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Oxidation Catalysis ◽  
Deposition Method ◽  
Water Oxidation Catalysis

An amorphous quaternary Ba-Sr-Co-Fe (a-BSCF) oxide film was fabricated by a simple and scalable photochemical thin-film deposition method. a-BSCF demonstrates superior electrocatalytic activity towards the oxygen evolution reaction in 0.1 M KOH solution.

In Situ ATR Infrared Study of Cobalt-Borate Water Oxidation Catalysts

2020 ◽  
Vol 998 ◽  
pp. 123-133
Author(s):  
Li Fei Xi ◽  
Christoph Schwanke ◽  
Kathrin M. Lange ◽  
Marcel Risch
Keyword(s):  
Water Oxidation ◽  
Attenuated Total Reflection ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Sodium Borate ◽  
Intermediate Species ◽  
Infrared Study ◽  
Electrode Surfaces ◽  
Water Oxidation Catalysis

Understanding the process of water oxidation, especially intermediate species, represents an important step toward gaining a mechanistic understanding of new emerging catalysts. The aim of this study is exploring the process of water oxidation and electrolyte orientation under external potential when using an emerging water oxidation catalyst, CoBi, in sodium borate (NaBi) buffer using in situ attenuated–total-reflection Fourier transform infrared spectroscopy (ATR-FTIR) spectroscopy. CoBi is generated via electrodeposition from aqueous solutions containing borate and Co2+. IR spectra were obtained for CoBi films under applied potentials supporting water oxidation catalysis. The spectra of water and CoBi on ZnSe/Cr/Au electrode surfaces change in intensity and their slope depends on the potential, which is rarely reported. The appearance of new bands at certain potentials is interpreted in terms of the potential-dependent re-alignment of water and borate molecules both from the film and electrolyte. A superoxide surface intermediate at 1027 cm-1 was observed in both thin and thick films. It is proposed to be Co (III)OO*H bridging and relates to a fast water oxidation process. The chemical structure of the intermediate species is proposed finally.

On the Origin of the Improvement of Electrodeposited MnOxFilms in Water Oxidation Catalysis Induced by Heat Treatment

ChemSusChem ◽  
2015 ◽  
Vol 8 (11) ◽  
pp. 1980-1985 ◽  
Author(s):  
Munirah Khan ◽  
Jie Xiao ◽  
Fengling Zhou ◽  
Mikhail Yablonskikh ◽  
Douglas R. MacFarlane ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Water Oxidation Catalysis

scholarly journals Synergistic Amplification of Water Oxidation Catalysis on Pt by a Thin-Film Conducting Polymer Composite

2018 ◽  
Vol 1 (8) ◽  
pp. 4235-4246 ◽  
Author(s):  
Mohammed Alsultan ◽  
Sivakumar Balakrishnan ◽  
Jaecheol Choi ◽  
Rouhollah Jalili ◽  
Prerna Tiwari ◽  
...  
Keyword(s):  
Thin Film ◽  
Conducting Polymer ◽  
Polymer Composite ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Water Oxidation Catalysis
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