Results 31 to 40 of about 467,723 (305)

Mathematical modelling of space charge breakdown in membrane systems taking into account the non-catalytic dissociation/ recombination reaction of water molecules [PDF]

open access: yesE3S Web of Conferences, 2020
In electromembrane systems, a theoretical study of salt ion transfer usually uses mathematical models of salt ion transfer in the depleted diffusion layer of ion-exchange membranes.
Gudza V   +3 more
doaj   +1 more source

The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide

open access: yesMaterials Research Express, 2021
The Cu/SAPO-34 catalysts were prepared via the ion exchange process for achieving improved catalytic activity. Effects of various parameters including copper ions sources, copper ions loadings and ion exchange temperature on catalyst performance of the ...
Dapeng Wang, Zhaokun Li, Chengwen Song
doaj   +1 more source

Ion Exchange Voltammetry [PDF]

open access: yes, 2012
This chapter focuses on recent advances in the field of ion-exchanger-based voltammetric sensors, whose widespread use has given rise to a new electroanalytical technique named ion exchange voltammetry (IEV). The chapter starts with a brief historical overview and a short introduction to voltammetric methods of analysis, followed by the presentation of
UGO, Paolo, MORETTO, Ligia Maria
openaire   +2 more sources

Mechanical-structural investigation of chemical strengthening aluminosilicate glass through introducing phosphorus pentoxide

open access: yesFrontiers in Materials, 2016
Chemical strengthening of aluminosilicate glasses through K+-Na+ ion exchange has attracted tremendous attentions because of the accelerating demand for high strength and damage resistance glasses. However, a paramount challenge still exists to fabricate
Huidan Zeng   +6 more
doaj   +1 more source

Removal of Heavy Metal Particles by LTJ, ANA, SVR, BEC and MER zeolites particles: A Molecular Dynamics Simulation Study [PDF]

open access: yesJournal of Particle Science and Technology, 2015
In present study, molecular dynamics simulation of Cadmium (II), Lead (II) and Copper (II) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done.
Mohsen Mehdipour Ghazi   +2 more
doaj   +1 more source

Study of the Electrical Conductivity of Ion-Exchange Resins and Membranes in Equilibrium Solutions of Inorganic Electrolytes

open access: yesMembranes, 2022
The study of the electrical conductivity of ion-exchange membranes in equilibrium electrolyte solutions is of great importance for the theory of membrane processes, in particular for practical electrodialysis.
Oleksandr Petrov   +6 more
doaj   +1 more source

Current-induced membrane discharge [PDF]

open access: yes, 2012
Possible mechanisms for over-limiting current (OLC) through aqueous ion-exchange membranes (exceeding diffusion limitation) have been debated for half a century.
Andersen, M. B.   +5 more
core   +4 more sources

Amberlite IRC-718 ion chelating resin extraction of hazardous metal Cr (VI) from aqueous solutions: equilibrium and theoretical modeling

open access: yesWater Science and Technology, 2021
Under varied conditions, the IRC 718 ion-exchange resin is used to extract chromium (VI) ions from aqueous solutions. On chromium (VI) removal effectiveness, the effects of adsorption dosage, contact time, beginning metal concentration, and pH were ...
Abdelhamid Addala   +4 more
doaj   +1 more source

Isolation and characterisation of metallothionein from the clam Ruditapes decussatus [PDF]

open access: yes, 2003
Metallothioneins (MT) were obtained after purification from metal-exposed clams (Ruditapes decussatus) using gel-permeation and ion-exchange chromatography.
Bebianno   +42 more
core   +2 more sources

Ion-Exchanged Waveguides in Glass Doped with PbS Quantum Dots [PDF]

open access: yes, 2004
The lowest-loss (≤1 dB/cm) ion-exchanged waveguides in glass doped with PbS quantum dots are presented. Near-field mode profile and refractive index profile using the refracted near-field technique were measured for these waveguides.
Axel Schülzgen   +10 more
core   +3 more sources

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