Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/7191
Title: Chemoselective hydrogenation of crotonaldehyde to crotyl alcohol over Pt/Ce<sub>x</sub>Sm<sub>1-x</sub>O<sub>2-<img src='/image/spc_char/delta1.gif' border=0></sub> catalysts
Authors: Jin, Ling-Yun
Tao, Li-Ping
Liu, Xi-Jing
Xie, Guan-Qun
Lu, Ji-Qing
Luo, Meng-Fei
Keywords: Catalyst
Supported catalysts
Hydrogenation
Chemoselective hydrogenation
Selective hydrogenation
Alcohols
Unsaturated alcohols
Aldehydes
Platinum
Issue Date: Jan-2010
Publisher: CSIR
Series/Report no.: Int. Cl.<sup>9</sup> B01J21/00
Abstract: Pt/Ce<sub>x</sub>Sm<sub>1-x</sub>O<sub>2-</sub><sub><img src='/image/spc_char/delta1.gif' border=0></sub> catalysts have been prepared with impregnation method using H<sub>2</sub>PtCl<sub>6</sub> as precursor. The selective vapor-phase hydrogenation of crotonaldehyde to crotyl alcohol over the catalysts has also been studied. It is found that introduction of Sm promotes the selective hydrogenation of C=O bond to crotyl alcohol due to formation of strong Lewis acidic sites. For Pt/Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2-<img src='/image/spc_char/delta1.gif' border=0></sub> catalysts, with increasing reduction temperatures, the crotonaldehyde conversion decreases while the selectivity to crotyl alcohol increases. Also, during the reaction process there is carbon deposition on the catalyst surface, which results in decrease, both in the catalytic activity as well as selectivity.
Description: 49-53
URI: http://hdl.handle.net/123456789/7191
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.49A(01) [January 2010]

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