PREPARATION OF MONODISPERSE NICKEL (COBALT) BOR1DE CATALYST USING REVERSED MICELLAR SYSTEM
- 1 December 1992
- journal article
- research article
- Published by Taylor & Francis in Journal of Dispersion Science and Technology
- Vol. 13 (6) , 647-656
- https://doi.org/10.1080/01932699208943344
Abstract
Reactions of Ni(II) or Co(II) cations with NaBH4 are prepared for monodisperse Ni2B or Co2B. These materials are at first dissolved in the inner water cores of reverse micelles composed of CTAB, 1-hexanol (1-pcntanol or 1—butyl alcohol) and water, then react with NaBH4 at room temperature. The reverse micelles provide a very convenient way of producing nickel boridc (or cobalt boride) particles of predetermined size if a well defined micellar composition and the concentration of the reducing agent arc precisely controlled. The experimental results demonstrate that the type of catalysts produced arc nearly monodisperse particles and have an activity superior to that of Raney nickel )or Rancy cobalt) in hydrogenation of certain olefins.Keywords
This publication has 5 references indexed in Scilit:
- Preparation Of Monodispersed Nickel Boride Catalysts Using Reversed Micellar SystemsStudies in Surface Science and Catalysis, 1983
- The preparation of monodisperse colloidal metal particles from microemulsionsColloids and Surfaces, 1982
- Solubility of Sodium Chloride in an Inverse Micellar Solution of PentanolPublished by American Chemical Society (ACS) ,1979
- Catalysis in micellar and liquid-crystalline phases. I. System water-hexadecyltrimethylammonium bromide-hexanolJournal of the American Chemical Society, 1972
- The cetyltrimethylammonium bromide-hexanol-water systemJournal of Colloid and Interface Science, 1969