1.
Science
; 211(4487): 1121-5, 1981 Mar 13.
Artículo
en Inglés
| MEDLINE
| ID: mdl-17755135
RESUMEN
Many commercially important catalysts consist of small metal particles dispersed on inorganic oxide surfaces. Although in most cases there is no significant interaction between the metal and the support, strong bonding can be demonstrated in a recently discovered class of supported-metal catalysts. These cases typically involve group VIII metals dispersed on transition metal oxides whose surfaces can be reduced to form cations with lower valences. Spectroscopic measurements indicate that an electron is transferred from the cation (such as Ti(3+) or Nb(4+)) to the metal particle. This, in turn, leads to profound changes in the catalytic and chemisorption properties and the morphology of the metal particles.
2.
J Steroid Biochem
; 4(3): 249-55, 1973 May.
Artículo
en Inglés
| MEDLINE
| ID: mdl-4748560