SYNTHESIS OF PALLADIUM NANOPARTICLES WITH INTERSTITIAL CARBON BY SONOCHEMICAL REDUCTION OF TETRACHLOROPALLADATE(II) IN AQUEOUS-SOLUTION

Citation
K. Okitsu et al., SYNTHESIS OF PALLADIUM NANOPARTICLES WITH INTERSTITIAL CARBON BY SONOCHEMICAL REDUCTION OF TETRACHLOROPALLADATE(II) IN AQUEOUS-SOLUTION, JOURNAL OF PHYSICAL CHEMISTRY B, 101(28), 1997, pp. 5470-5472
Citations number
26
Categorie Soggetti
Chemistry Physical
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
101
Issue
28
Year of publication
1997
Pages
5470 - 5472
Database
ISI
SICI code
1089-5647(1997)101:28<5470:SOPNWI>2.0.ZU;2-V
Abstract
The metal particles of an interstitial solid solution of palladium car bide, PdCx (0 < x less than or equal to 0.15), were synthesized at roo m temperature in aqueous solution during the reduction of tetrachlorop alladate(II) with sonochemically produced organic radicals. The number of carbon atoms in the Pd particles were controlled by changing the c oncentration and the type of organic additives. The following mechanis m of PdC formation is proposed: (i) an active Pd cluster is formed dur ing the synthesis of Pd particles, (ii) organic additives are then ads orbed on the Pd cluster surface, and finally (iii) carbon atoms on the particle surface, which are formed from the catalytic dissociation of the additives, diffuse in the Pd metal lattice.