Catalysis of water dissociation by the phosphoric-acid groups of an MB-3 bipolar membrane
Journal Article
·
· Sov. Electrochem. (Engl. Transl.); (United States)
OSTI ID:6565200
Commercial MB-3 bipolar membranes were studied by the impedance method in the mode of H/sup +/ and OH/sup -/ ion generation. The overvoltage of the bipolar and monopolar region and the rate constant of dissociation of water molecules in the bipolar region of the membrane were calculated as functions of current density. The linearity of the current-voltage characteristic in the bipolar region, the lack of an effect of the electric field on the rate constant, and a 3.5 order-of-magnitude difference between this rate constant and that found in pure water are explained in terms of catalysis by phosphoric-acid groups. This conclusion is confirmed by a calculation of the water dissociation constant from known equilibrium and recombination constants under conditions when dissociation involves the phosphoric-acid groups.
- Research Organization:
- Kuban State Univ., Krasnodar, USSR
- OSTI ID:
- 6565200
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 22:6; ISSN SOECA
- Country of Publication:
- United States
- Language:
- English
Similar Records
The current-voltage characteristic of the transition region in MB-1 bipolar membranes
Investigation of the catalytic activity of secondary and tertiary amino groups in the dissociation of water on a bipolar mb-2 membrane
Reverse electrodialysis using bipolar ion-exchange membranes as a source of electric energy
Journal Article
·
Sun Mar 31 23:00:00 EST 1985
· Sov. Electrochem. (Engl. Transl.); (United States)
·
OSTI ID:5658264
Investigation of the catalytic activity of secondary and tertiary amino groups in the dissociation of water on a bipolar mb-2 membrane
Journal Article
·
Fri Jan 31 23:00:00 EST 1986
· Sov. Electrochem. (Engl. Transl.); (United States)
·
OSTI ID:5365890
Reverse electrodialysis using bipolar ion-exchange membranes as a source of electric energy
Journal Article
·
Wed Jun 01 00:00:00 EDT 1994
· Russian Journal of Electrochemistry
·
OSTI ID:75645
Related Subjects
08 HYDROGEN
080101* -- Hydrogen-- Production-- Electrolysis
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CURRENT DENSITY
ELECTRIC IMPEDANCE
ELECTROCATALYSTS
ELECTROLYSIS
ELECTROLYTIC CELLS
EQUATIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROXYL RADICALS
IMPEDANCE
INORGANIC ACIDS
IODINATED ALIPHATIC HYDROCARBONS
ION EXCHANGE
ION EXCHANGE MATERIALS
KINETIC EQUATIONS
KINETICS
LYSIS
MATERIALS
MEMBRANES
METHYL IODIDE
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC ION EXCHANGERS
OXYGEN COMPOUNDS
PHOSPHORIC ACID
RADICALS
REACTION KINETICS
WATER
YIELDS
080101* -- Hydrogen-- Production-- Electrolysis
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CURRENT DENSITY
ELECTRIC IMPEDANCE
ELECTROCATALYSTS
ELECTROLYSIS
ELECTROLYTIC CELLS
EQUATIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROXYL RADICALS
IMPEDANCE
INORGANIC ACIDS
IODINATED ALIPHATIC HYDROCARBONS
ION EXCHANGE
ION EXCHANGE MATERIALS
KINETIC EQUATIONS
KINETICS
LYSIS
MATERIALS
MEMBRANES
METHYL IODIDE
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC ION EXCHANGERS
OXYGEN COMPOUNDS
PHOSPHORIC ACID
RADICALS
REACTION KINETICS
WATER
YIELDS