Results 31 to 40 of about 266,896 (257)

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

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

Development of Anion Exchange Membrane Water Electrolysis and the Associated Challenges: A Review

open access: yesChemElectroChem, 2023
Water electrolysis technologies for hydrogen production from renewable energy play an important role in a carbon‐free energy scenario. Anion exchange membrane water electrolysis (AEMWE) is one of the most cost‐effective and promising water electrolysis ...
Daxing Hua   +4 more
doaj   +1 more source

Mass Transfer Phenomena during Electrodialysis of Multivalent Ions: Chemical Equilibria and Overlimiting Currents

open access: yesApplied Sciences, 2018
Electrodialysis is utilized for the deionization of saline streams, usually formed by strong electrolytes. Recently, interest in new applications involving the transport of weak electrolytes through ion-exchange membranes has increased. Clear examples of
Manuel César Martí-Calatayud   +2 more
doaj   +1 more source

Dissociation chemistry of hydrogen halides in water [PDF]

open access: yesThe Journal of Chemical Physics, 2004
To understand the mechanism of aqueous acid dissociation, which plays a fundamental role in aqueous chemistry, the ionic dissociation of HX acids (X=F, Cl, Br, and I) in water clusters up to hexamer is examined using density functional theory and Møller–Plesset second-order perturbation methods (MP2).
Odde, S   +4 more
openaire   +3 more sources

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

Water Self‐Dissociation is Insensitive to Nanoscale Environments

open access: yesAngewandte Chemie, 2023
AbstractNanoconfinement effects on water dissociation and reactivity remain controversial, despite their importance to understand the aqueous chemistry at interfaces, pores, or aerosols. The pKw in confined environments has been assessed from experiments and simulations in a few specific cases, leading to dissimilar conclusions.
Solana Di Pino   +5 more
openaire   +4 more sources

Formation of a Low-Density Liquid Phase during the Dissociation of Gas Hydrates in Confined Environments

open access: yesNanomaterials, 2021
The large amounts of natural gas in a dense solid phase stored in the confined environment of porous materials have become a new, potential method for storing and transporting natural gas.
Lihua Wan   +6 more
doaj   +1 more source

Modulating Water Splitting Kinetics via Charge Transfer and Interfacial Hydrogen Spillover Effect for Robust Hydrogen Evolution Catalysis in Alkaline Media

open access: yesAdvanced Science, 2023
Designing and synthesizing advanced electrocatalysts with superior intrinsic activity toward hydrogen evolution reaction (HER) in alkaline media is critical for the hydrogen economy.
Yiming Jiang   +10 more
doaj   +1 more source

Self‐integration exactly constructing oxygen‐modified MoNi alloys for efficient hydrogen evolution

open access: yesEcoEnergy, 2023
Introducing oxygen atoms into nickel‐based alloys is an effective strategy for constructing water dissociation sites for hydrogen evolution reaction (HER).
Ya‐Nan Zhou   +6 more
doaj   +1 more source

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