Vaidya, SVitthal. H. ; Rode, C. V. ; Chaudhari, R. V. (2007) Bimetallic Pt-Sn/γ-alumina catalyst for highly selective liquid phase hydrogenation of diethyl succinate to γ-butyrolactone Catalysis Communications, 8 (3). pp. 340-344. ISSN 1566-7367
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S15667...
Related URL: http://dx.doi.org/10.1016/j.catcom.2006.06.026
Abstract
Platinum-tin bimetallic catalyst on γ-alumina support was prepared by impregnation method and was reduced by sodium borohydride at room temperature. XRD and XPS characterization revealed that platinum was reduced to Pt0 while, tin was probably partially reduced to Sn2+ due to the low temperature reduction method and Sn0 was completely absent, avoiding the formation of Pt-Sn alloy. Pt-Sn/γ-alumina (Pt 1%, Sn 9%) thus prepared was found to give almost complete selectivity to γ -butyrolactone in liquid phase hydrogenation of diethyl succinate. A plausible reaction pathway is proposed involving Pt-O-Sn state and high selectivity to GBL is due to the Lewis acidity of Sn2+/4+.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Bimetallic Pt-Sn Catalyst; Liquid Phase Hydrogenation of Diethyl Maleate; γ-butyrolactone Selectivity; XPS of Pt-Sn; XRD of Pt-Sn |
| ID Code: | 7865 |
| Deposited On: | 25 Oct 2010 08:46 |
| Last Modified: | 28 May 2011 10:03 |
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