11 Result(s)
within
I. A. Stenina
Catalysis
Nanotechnology
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Article
Ionic Conductivity of Ion-Exchange Membranes Based on Polynaphthoylenimide Doped by Phosphate-Modified Zirconia
The synthesis of phosphate-modified zirconia nanoparticles in pores of a polynaphthoylenimide-based membrane material has been carried out via an in situ method. The transport properties of the obtained sample...
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Article
Prospects of Membrane Science Development
Membranes are widely used in modern technology. The demand for different types of membranes and membrane processes is increasing every year. This review summarizes the current state of the art and prospects of...
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Article
Interfaces in Materials for Hydrogen Power Engineering
Hydrogen power engineering is based on the production of hydrogen and subsequent oxidation of it to generate electrical energy. Using the example of ion-exchange membranes, catalysts for low-temperature fuel c...
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Article
Effect of Surface-Sulfonated Silica on the Properties of Pyridine-Containing Polybenzimidazoles
Hybrid membranes based on pyridine-containing polybenzimidazole (PBI–Py) and silica containing sulfonic groups on the surface have been synthesized by two methods, namely, by casting a polymer solution with re...
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Article
Dependence of the Transport Properties of Perfluorinated Sulfonated Cation-Exchange Membranes on Ion-Exchange Capacity
The transport properties of ion-exchange membranes depend on many factors, primarily, on ion-exchange capacity and chemical composition. Therefore, the correlation of transport properties with a single particu...
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Article
Multisensory Systems Based on Nafion Membranes Modified by PEDOT for the Determination of Sulfacetamide in Aqueous Solutions and Pharmaceuticals
Composite membrane materials based on Nafion-117 gradient modified by poly(3,4-ethylenedioxythiophene) (PEDOT) are prepared by in situ oxidative polymerization. 0.002 M and 0.01 M solutions of the monomer are ...
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Article
MF-4SC Membranes Modified by Polyaniline for Potentiometric Determination of Saccharin and Sodium Ions in Aqueous Solutions
MF-4SC membranes have been modified by polyaniline (PANI) with the oxidative polymerization method. The influence of the method of obtaining hybrid membranes and the content of PANI in them on the value of IEC...
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Article
Effect of Sulfonation Conditions on Properties of Ion-Conducting Membranes Based on Polystyrene Grafted on Gamma-Irradiated Polyvinylidene Fluoride Films
The process of heterogeneous sulfonation of a radiation-grafted copolymer of polystyrene and polyvinylidene fluoride depending on the reaction time and the type of sulfonating agent (chlorosulfonic acid or its...
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Article
Open AccessPore Filled Ion-Conducting Materials Based on Track-Etched Membranes and Sulfonated Polystyrene
Synthesis of proton-conducting materials based on track-etched membranes from polyvinylidene fluoride and sulfonated cross-linked polystyrene is described. The synthesis has been carried out by filling the por...
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Article
Prospects for the Development of Hydrogen Energy. Polymer Membranes for Fuel Cells and Electrolyzers
Due to the increased attention to hydrogen energy and the fact that many countries adopted the programs for its development, the question on the prospects for this area becomes relevant. Initially, Russian hyd...
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Article
Effect of Surface Modification with Cerium Oxide on the Transport Properties of Heterogeneous Anion Exchange Membranes MA-41
Surface modification of heterogeneous MA-41 anion-exchange membranes with cerium oxide particles, including those with a surface functionalized with phosphoric acid groups, was carried out. The resulting compo...
