Role of catalyst characteristics in electrocatalytic hydrogenation : reduction of benzaldehyde and acetophenone on carbon Felt/Pd electrodes

The hydrogenation of benzaldehyde and acetophenone was investigated at two carbon felt-supported Pd electrocatalysts, prepared by two different methods. The faradaic yield and the selectivity of the reaction were found to be greatly affected by the preparation conditions of the catalyst. A model, ba...

Full description

Saved in:
Bibliographic Details
Published in:Industrial & engineering chemistry research 1993-07, Vol.32 (7), p.1315-1322
Main Authors: POLCARO, A. M, PALMAS, S, DERNINI, S
Format: Article
Language:English
Subjects:
10 SYNTHETIC FUELS
100200 - Synthetic Fuels- Production- (1990-)
400400 - Electrochemistry
ACETOPHENONE
ALCOHOLS
ALDEHYDES
BENZALDEHYDE
CARBON
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
Chemistry
ELECTROCATALYSTS
ELECTROCHEMICAL CELLS
Electrochemistry
ELEMENTS
EQUATIONS
Exact sciences and technology
General and physical chemistry
HYDROCARBONS
HYDROGENATION
HYDROXY COMPOUNDS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
KETONES
KINETIC EQUATIONS
KINETICS
Kinetics and mechanism of reactions
METALS
NONMETALS
ORGANIC COMPOUNDS
PALLADIUM
PLATINUM METALS
REACTION KINETICS
SYNTHESIS
TRANSITION ELEMENTS
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The hydrogenation of benzaldehyde and acetophenone was investigated at two carbon felt-supported Pd electrocatalysts, prepared by two different methods. The faradaic yield and the selectivity of the reaction were found to be greatly affected by the preparation conditions of the catalyst. A model, based on a reaction electrocatalytic mechanism, involving two parallel steps through which alcohol and hydrocarbon are generated from the reactant adsorbed on different active sites, was performed. The kinetics was described by means of the Langmuir-Hinshelwood rate equations, and the kinetic and equilibrium parameters were determined for both electrocatalysts.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie00019a005