Results 21 to 30 of about 253,706 (260)

Composition and Structure Progress of the Catalytic Interface Layer for Bipolar Membrane

open access: yesNanomaterials, 2022
Bipolar membranes, a new type of composite ion exchange membrane, contain an anion exchange layer, a cation exchange layer and an interface layer. The interface layer or junction is the connection between the anion and cation exchange layers.
Di Zhao   +14 more
doaj   +1 more source

Radially Symmetrical Heat Hydrate Dissociation Model with a Density Difference

open access: yesEnergies, 2022
The hydrate dissociation is viewed as a phase change process in which hydrates transform from a solid phase into gas and liquid phase at a moving dissociation boundary.
Qian Wang   +5 more
doaj   +1 more source

Comparison of H2O Adsorption and Dissociation Behaviors on Rutile (110) and Anatase (101) Surfaces Based on ReaxFF Molecular Dynamics Simulation

open access: yesMolecules, 2023
The relationship between structure and reactivity plays a dominant role in water dissociation on the various TiO2 crystallines. To observe the adsorption and dissociation behavior of H2O, the reaction force field (ReaxFF) is used to investigate the ...
He Zhou, Heng Zhang, Shiling Yuan
doaj   +1 more source

Water Dissociation in the Presence of Metal Ions. [PDF]

open access: yesChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Orkid, Coskuner   +2 more
openaire   +2 more sources

Improving the Stability, Selectivity, and Cell Voltage of a Bipolar Membrane Zero‐Gap Electrolyzer for Low‐Loss CO2 Reduction

open access: yesAdvanced Materials Interfaces, 2023
Electrolyzers for CO2 reduction containing bipolar membranes (BPM) are promising due to low loss of CO2 as carbonates and low product crossover, but improvements in product selectivity, stability, and cell voltage are required.
Bhavin Siritanaratkul   +3 more
doaj   +1 more source

Dissociation of Ozonide in Water [PDF]

open access: yesThe Journal of Physical Chemistry A, 2000
The free energy of bond dissociation for ozonide ion radical is found to be lowered in aqueous solution by about 20 kcal/mol relative to that in the gas phase, based on electronic structure calculations. Explicit treatment of anion−water clusters indicates that the stronger hydrogen bonds to first-shell water molecules formed by O- relative to O3 ...
John Bentley   +2 more
openaire   +1 more source

Neutralization of Industrial Water by Electrodialysis

open access: yesMembranes, 2021
The process of non-reagent adjustment of the pH of a NaCl solution (0.5 g/L) of different acidity was investigated by the method of bipolar electrodialysis on a device operating according to the K-system (concentration).
Oleksandr Petrov   +6 more
doaj   +1 more source

Effects of Dissociation Water Retention on Pore Structure Disintegration in Hydrate Sediments

open access: yesFrontiers in Energy Research, 2020
During the depressurization process, natural gas hydrates (NGHs) decompose and release methane gas and water. Field experience shows that only 1% of the dissociation water is recovered, hindering the continuous pressure decline and further NGHs ...
Liu Yang   +4 more
doaj   +1 more source

Structure and Reactivity of CoFe2O4(001) Surfaces in Contact with a Thin Water Film

open access: yesPhyschem, 2022
CoFe2O4 is a promising catalytic material for many chemical reactions. We used ab initio molecular dynamic simulations to study the structure and reactivity of the A- and B-terminations of the low-index CoFe2O4(001) surfaces to water adsorption at room ...
Tim Kox   +2 more
doaj   +1 more source

Dissociation of Water on Defective Carbon Substrates [PDF]

open access: yesPhysical Review Letters, 2005
Using calculations from first principles, we found that water can dissociate over defective sites in graphene or nanotubes following many possible reaction pathways, some of which have activation barriers lower than half the value for the dissociation of bulk water. This reduction is caused by spin selection rules that allow the system to remain on the
Kostov, Milen   +4 more
openaire   +3 more sources

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