Dependence of oxidation activity on the structure of bismuth tungstate catalysts |
| |
| Authors: | P. K. Sinhamahapatra S. Sinhamahapatra S. K. Bhattacharyya |
| |
| Affiliation: | (1) Department of Chemistry, Faculty of Science, Banaras Hindu University, 221005 Varanasi, India;(2) Oil Technology Division, Department of Applied Chemistry, University College of Science and Technology, 700009 Calcutta, India;(3) Present address: Catalyst Section, Indian Institute of Petroleum, Mohkampur, P. O. I. I. P., 248005 Dehra Dun, (U.P.), India |
| |
| Abstract: | The structures of bismuth tungstate catalysts with Bi/W ratios of 2/3, 1/1, 2/1 and 6/1 have been studied by X-ray diffraction. The presence of corner sharing W–O octahedra in the bulk of Bi/W=2/1 and 1/1 compositions has been established. The Bi/W=2/3 catalyst appears to contain edge-shared W–O octahedra whereas W in the Bi/W=6/1 sample form WO4 tetrahedra. An apparent correlation has been obtained between the structures of the catalysts and their activities in the oxidation and ammoxidation of propylene and 1-butene.
                   Bi/W,  2 3, 11, 21 61,          .   ,  W–O  Bi/W=21 11.  Bi/W=23 W–O , Bi/W=61 . 1-.
|
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
