Behavior of adsorbed diphenyl-sulfide on the Pd/C catalyst for o-chloronitrobenzene hydrogenation

被引:1
|
作者
Chang Su [1 ]
Xiao-Nian Li [1 ]
Qun-Feng Zhang [1 ]
Lei Ma [1 ]
Chun-Shan Lu [1 ]
Feng Feng [1 ]
机构
[1] Industrial Catalysis Institute of Zhejiang,University of Technology
基金
中国国家自然科学基金;
关键词
Pd-Ph2S(x)/C; o-Chloronitrobenzene; Hydrogenation;
D O I
暂无
中图分类号
O643.32 [催化反应];
学科分类号
081705 ;
摘要
A series of diphenyl-sulfide(Ph;S)-immobilized Pd/C catalysts(Pd-Ph;S;/C) were prepared using the wetness-impregnation and immobilization method.Pd-Ph;S;w/C catalysts employed for the hydrogenation of o-chloronitrobenzene showed very high selectivity.The structure of Pd-Ph;S;/C with different molar ratio of ligand(x-values) was characterized by XPS and TG-DSC-MS.The results suggest a "saturated" surface ratio of Ph;S/Pd(about 0.3) was formed on the Pd-Ph;S;/C catalysts surface.The Ph;S immobilized on the Pd particle is quite stable,and the desorption of Ph;S or dissociative loss of phenyl group was only found at temperatures above 500 K.The possible catalytic mechanism of the Pd-Ph;S;/C catalyst was also discussed.
引用
收藏
页码:59 / 62
页数:4
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