BINARY OXIDE CATALYSTS OF ALUMINA RARE-EARTH-OXIDES .1.

Authors
JAYASREE J NARAYANAN CS
Citation
J. Jayasree et Cs. Narayanan, BINARY OXIDE CATALYSTS OF ALUMINA RARE-EARTH-OXIDES .1., Bulletin of the Chemical Society of Japan, 68(1), 1995, pp. 84-88
Citations number
10
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
68
Issue
1
Year of publication
1995
Pages
84 - 88
Database
ISI
SICI code
0009-2673(1995)68:1<84:BOCOAR>2.0.ZU;2-P
Abstract
Binary oxides of alumina with rare earths like europium, samarium, pra seodymium, neodymium, and yttrium were prepared by coprecipitation fro m corresponding nitrates. The composition, thermal stability, and surf ace properties of the catalysts were determined using XRD, TGA, XPS, a nd MAS(27)AlNMR. Surface area and pore size of the catalysts were dete rmined by BET and mercury porosimetry. The catalysts were found to be amorphous and aluminium atom showed tetrahedral and octahedral coordin ation in its lattice. Catalysts showed weak to moderate acidity and ba sicity.