Non-faradaic electrochemical modification of catalytic activity

Journal Article · Thu Sep 08 04:00:00 EDT 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100329a007· OSTI ID:6254269

Vayenas, C G; Bebelis, S; Neophytides, S

It was found that catalytic activity and selectivity of metal catalysts can be altered dramatically and in a reversible manner. This is accomplished by electrochemically supplying oxygen anions onto catalytic surfaces via polarized solid electrolyte cells. Oxygen anions, forced electrochemically to adsorb on the catalyst surface, alter the catalyst work function in a predictable way and lead to reaction rate increases of the order of 1500%. Changes in catalytic reaction rates typically exceed the rate of O/sup 2 -/ transport to or from the catalyst surface by 10/sup 2/-10/sup 4/. The case of several catalytic reactions in which this new phenomenon has been observed is discussed.

• Research Organization: Univ. of Patras (Greece)
• OSTI ID: 6254269
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:18; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMISTRY
DATA
ELECTROCHEMISTRY
ELECTROLYTES
EXPERIMENTAL DATA
INFORMATION
KINETICS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES