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Showing 1 to 8 of 8 for “"Water Dissociation"”.
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Electrical characterisation of emerging photo anodes suited to water dissociation with an applied bias
… and materials. The direct photovoltage of water to produce hydrogen and oxygen represents the most direct route to the synthesis of clean fuel. Recently it has been showing that technology from the microelectronics industry can be used to fabricate metal oxide semiconductors for use as …
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Hydrogen gas generation by water vapor dissociation in an Al/Al2O3 microchannel plasma device
… an energy efficiency of 2.5 % by dissociating water vapor in Ar at atmospheric pressure and room temperature. The value compares favorably to other plasma reactors reported in the literature, having reported energy efficiencies ≤ 2 %. Additionally, spectra of the Hα line are used to calculate …
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Structure and activity relationships of bimetallic catalysts for aqueous phase reforming and the water-gas shift reaction
… site time yield (STY) and 8 times higher water-gas shift (WGS) turnover rate (TOR). The bimetallic structure and oxidation state of the catalysts before and after reaction were determined by x-ray absorption spectroscopy (EXAFS and XANES spectra). While the fresh structure varied among the …
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Establishing Faithful Simulation of Polar Surfaces in Contact with the Aqueous Phase
… (100) termination, which exhibits complicated water dissociation at the interface; and secondly the polar (111) termination, which forces us to evaluate our model in the face of some much more aggressive chemistry. Finally, we reflect on all the accrued queries which remain to be tackled by …
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Non-thermal plasma for water treatment
Plasma generated in contact with water has been extensively investigated in various electrode geometries and various discharge types for water treatment, of which the applications have been employed industrially on different scales. The reactive species such as OH radicals, O3, H2O2 and HO2 can be …
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Mechanistic Underpinnings of Efficient Chemical-to-Electrical Energy Interconversion in Bipolar Membranes
… a suite of electrochemical devices such as water and CO₂ electrolyzers, fuel cells, redox flow batteries, and electrodialyzers that operate with a pH gradient. This in turn has allowed the independent optimization of cathode and anode catalysts, and unlocked new operational modalities such …
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Nonlinear ion transport at high electric currents in shock electrodialysis and ion-intercalation memories
… Shock ED is a new electrochemical method for water treatment utilizing deionization shocks generated by over-diffusion-limiting current, developed by the Bazant group. Previous models have qualitatively described the desalination of binary electrolytes. However, they cannot quantitatively …
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Electrochemical and Photoelectrochemical Study of Conduction modes in Nanostructured TiO2 Films
… is the signature of the adsorption of molecular water. After UV exposure during 3h, and back to the dark, the quasi irreversible disappearance of the localized energy states is related to photo-induced adsorbed water dissociation at some sites on the surface of NT. Furthermore, the increase by a …