Electrocatalysis; selective electrogenerative reduction of organic halides. [Using Pd, Pt, Ru, ang Ag black electrocatalysts]

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · J. Catal.; (United States)

OSTI ID:7338789

Sakellaropoulos, G P; Langer, S H

Reduction of vinyl and ethyl fluorides and chlorides has been investigated under the operating conditions of the electrogenerative reactor. Reaction selectivity and rate were examined over palladium, platinum, ruthenium and silver black porous electrocatalysts operating at positive potentials with special attention given to vinyl fluoride reduction. Substrate partial pressure and flow rate as well as electrolyte concentration were considered as potential parameters for selectivity control. The effect of the position of the halide has also been studied. Results are compared and contrasted with conventional heterogeneous catalytic and electrochemical reduction. Palladium is the most selective electrocatalyst for double bond hydrogenation, while platinum catalyzes cleavage preferentially. Differences in selectivity are discussed in terms of an insertion-type mechanism and an electrochemical hydrodehalogenation step leading to cleavage.

• Research Organization: Univ. of Wisconsin, Madison
• OSTI ID: 7338789
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 44:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400500 -- Photochemistry
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINATED ALIPHATIC HYDROCARBONS
ELECTROLYSIS
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGENATION
KINETICS
LYSIS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PALLADIUM OXIDES
PLATINUM COMPOUNDS
PLATINUM OXIDES
REACTION KINETICS
REDUCTION
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SILVER COMPOUNDS
SILVER OXIDES
TRANSITION ELEMENT COMPOUNDS