SELECTIVE HYDROGENATION OF CINNAMALDEHYDE OVER RU-SN CATALYSTS

被引:57
作者
GALVAGNO, S
DONATO, A
NERI, G
PIETROPAOLO, R
CAPANNELLI, G
机构
[1] UNIV REGGIO CALABRIA,FAC INGN,I-89100 REGGIO CALABRIA,ITALY
[2] UNIV GENOA,DIPARTIMENTO CHIM IND,I-16126 GENOA,ITALY
来源
JOURNAL OF MOLECULAR CATALYSIS | 1993年 / 78卷 / 02期
关键词
D O I
10.1016/0304-5102(93)85041-Q
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Hydrogenation of cinnamaldehyde has been investigated over a series of Ru-Sn/C catalysts having various Sn/Ru ratios. Addition of tin to Ru/C decreases the CO chemisorption capability of the catalyst. The overall turnover frequency of cinnamaldehyde disappearance and the selectivity to cinnamyl alcohol increase with the Sn/Ru ratio. It is suggested that hydrogenation of the -C = O group occurs on sites associated with tin ions. On these sites the carbonyl group is polarized, facilitating hydrogen transfer from an adjacent Ru-H site.
引用
收藏
页码:227 / 236
页数:10
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