Accession Number:

ADA318438

Title:

Electrified Microheterogeneous Catalysis of Inorganic Materials.

Descriptive Note:

Final rept. 1 Nov 95-31 Sep 96,

Corporate Author:

VILLANOVA UNIV PA DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1996-11-19

Pagination or Media Count:

5.0

Abstract:

Electrified Microheterogeneous Catalysis EMC is a novel electrochemical method in which an electrifying force potential, current or field is applied to a low ionic strength dispersion of catalytically active heterogeneous materials to affect organic transformations at low temperatures and in the absence of light or co-oxidants. This investigation involved the evaluation of the EMC method with three families of heterogeneous catalysts polyoxometalates, semiconducting metal oxides and humic acid with a model substrate tetrahydrothiophene THT, an organic sulfide. This research program had four important conclusions 1 The reaction rates of the EMC method are 12-60 times faster than conventional chemical and photochemical catalysis. 2 In terms of product distributions, the EMC method competes well against conventional methods for the oxidation of organic sulfides. 3 The EMC method produces C-S andor C-C bond cleavage products from the organic sulfide indicating that sweetening of fuel feedstocks is possible. 4 Proton transfer ability, not electronic structure or adsorption sites is the most important factor in THT oxidation using EMC methods.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE