Catalytic Activity of Colored Sodium Chloride for the Dehydrochlorination of t‐Butyl Chloride

Department of Chemistry, Faculty of Science, Kobe University Nada-Ku, Kobe 657, Japan
Berichte der Bunsengesellschaft für physikalische Chemie 04/1986; 90(4):353 - 356. DOI: 10.1002/bbpc.19860900408

ABSTRACT When NaCl was colored with Na vapor, X-rays and Cl2 vapor, respectively, the surface became highly active catalytically. Almost without exception, the decrease in the enhanced activity upon heating occurs in the range of the annihilation temperature of the color centers. This result indicates that both F- and V-centers in NaCl may contribute to the reaction as active sites.

  • [Show abstract] [Hide abstract]
    ABSTRACT: Theoretical considerations suggest that the rate of dehydrohalogenation of alkyl halides on the surface of a metal halide may be enhanced by the presence of ionic point defects such as ad-cations, ad-anions, cation vacancies, and anion vacancies whose concentrations may be increased by appropriate dopes. In accord with these considerations, the rate of the reaction (CH3)3CCl = (CH3)2C:CH2 + HCl at 100 °C on solid AgCl as a catalyst has been found to increase by 1.5 orders of magnitude upon doping AgCl with CdCl2.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The catalytic properties of both pure and doped silver chloride in the dark and under illumination were studied by the decomposition of tert-butyl chloride between 100 ° and 150 °C. It was found that the freshly rechlorinated silver chloride surface caused a large rate of decomposition. This catalytic activity, however, is diminished by the irreversible surface reaction of chemisorbed chlorine species reacting with silver ions with the generation of silver ion vacancies. A doping with cadmium chloride had no effect on the catalytic properties of silver chloride. However, silver chloride doped with cuprous chloride produced a catalyst which without any chlorine treatment shows a promising catalytic activity for a considerable length of time.
    Journal of Catalysis 08/1967; 8(4):340-347. DOI:10.1016/0021-9517(67)90330-2 · 6.07 Impact Factor
  • Journal of Catalysis 03/1967; 7(3):283-286. DOI:10.1016/0021-9517(67)90109-1 · 6.07 Impact Factor
Show more