Nature of the activity increase of surface Raney nickel treated with cadmium nitrate and sulfate solutions
Journal Article
·
· Sov. Electrochem. (Engl. Transl.); (United States)
OSTI ID:7032583
The laws of cadmium adsorption at nickel surface Raney catalysts (Ni /SUB src/ ) were studied and compared following the exposure of these catalysts to solutions of cadmium nitrate and cadmium sulfate. In both cases cadmium adsorption was shown to occur in the underpotential region, and to be irreversible. During the treatment of Ni /SUB SRC/ in Cd (NO/sub 3/)/sub 2/ solutions, cadmium hydroxide precipitates at the electrode surfaces in addition to the specific adsorption of cadmium; this is due to a reduction of the NO/sub 3//sup -/ ions and alkalization of the solution layer next to the electrode. It was found that the additional reduction of hydrogen overpotential found in alkaline solutions at Ni /SUB src/ following treatment with nitrate solutions, relative to Ni /SUB src/ treated with sulfate solutions, is due to an optimum surface oxidation of the electrodes by the nitrate ions rather than to the presence of phase cadmium or cadmium hydroxide at the surface.
- Research Organization:
- Moscow Power Engineering Institute
- OSTI ID:
- 7032583
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 22:3; ISSN SOECA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cadmium ion adsorption on nickel surface Raney catalysts, and its effect on cathodic hydrogen evolution
Promoter action of alkali nitrate in Raney Ruthenium catalyst for activation of dinitrogen
Morphological and surface studies of ultrasonically treated Raney nickel hydrogen-deuterium exchange catalysts
Journal Article
·
Mon Sep 01 00:00:00 EDT 1986
· Sov. Electrochem. (Engl. Transl.); (United States)
·
OSTI ID:6952186
Promoter action of alkali nitrate in Raney Ruthenium catalyst for activation of dinitrogen
Journal Article
·
Wed Nov 13 23:00:00 EST 1991
· Journal of Physical Chemistry; (United States)
·
OSTI ID:7163718
Morphological and surface studies of ultrasonically treated Raney nickel hydrogen-deuterium exchange catalysts
Journal Article
·
Wed Jan 31 23:00:00 EST 1990
· Langmuir; (USA)
·
OSTI ID:6611468
Related Subjects
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
ALLOYS
ALUMINIUM ALLOYS
CADMIUM
CADMIUM COMPOUNDS
CADMIUM HYDROXIDES
CADMIUM NITRATES
CADMIUM SULFATES
CATALYTIC EFFECTS
CHEMISTRY
DEGASSING
DESORPTION
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
METALS
NICKEL ALLOYS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
OXYGEN COMPOUNDS
PRECIPITATION
SEPARATION PROCESSES
SORPTION
SULFATES
SULFUR COMPOUNDS
SURFACE TREATMENTS
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
ALLOYS
ALUMINIUM ALLOYS
CADMIUM
CADMIUM COMPOUNDS
CADMIUM HYDROXIDES
CADMIUM NITRATES
CADMIUM SULFATES
CATALYTIC EFFECTS
CHEMISTRY
DEGASSING
DESORPTION
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
METALS
NICKEL ALLOYS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
OXYGEN COMPOUNDS
PRECIPITATION
SEPARATION PROCESSES
SORPTION
SULFATES
SULFUR COMPOUNDS
SURFACE TREATMENTS