SYNTHESIS OF PLATINUM NANOPARTICLES IN AQUEOUS HOST DISPERSIONS OF INORGANIC (IMOGOLITE) RODS

Authors
MARZAN LL PHILIPSE AP
Citation
Ll. Marzan et Ap. Philipse, SYNTHESIS OF PLATINUM NANOPARTICLES IN AQUEOUS HOST DISPERSIONS OF INORGANIC (IMOGOLITE) RODS, Colloids and surfaces. A, Physicochemical and engineering aspects, 90(1), 1994, pp. 95-109
Citations number
35
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
90
Issue
1
Year of publication
1994
Pages
95 - 109
Database
ISI
SICI code
0927-7757(1994)90:1<95:SOPNIA>2.0.ZU;2-S
Abstract
A method is presented of preparing platinum particles (radii 1-3 nm) b y the reduction of H2PtCl6 with NaBH4 in an aqueous acidic host disper sion of high aspect ratio inorganic (imogolite) fibers. The fibers app ear to be effective stabilizers for the platinum particles, which sett le in the absence of imogolite as large aggregates. This influence of the fibers is examined and explained, details of the syntheses of imog olite and platinum are discussed, and possible applications of the imo golite-platinum dispersions for catalysis are indicated.