高等学校化学学报

高等学校化学学报 ›› 1981, Vol. 2 ›› Issue (1): 105.

• 论文 • 上一篇    下一篇

红外光谱法研究乙烯在Pd/SiO2上的化学吸附

吴通好, 杨洪茂, 赵方卿   

  1. 吉林大学化学系催化动力学研究室
  • 收稿日期:1980-04-05 出版日期:1981-01-24 发布日期:1981-01-24

INFRARED STUDY OF ETHYLENE CHEMISORBED ON SILICASUPPORTED PALLADIUM

Wu Tonghao, Yang Hongmao, Zhao Fangqing   

  1. The Research Section of Catalysis and Kinetics,Department of Chemistry, Jilin University, Changchun
  • Received:1980-04-05 Online:1981-01-24 Published:1981-01-24

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摘要： 本文报导了15℃时乙烯在Pd/SiO2上化学吸附的红外光谱。表面吸附物加氢后的气相产物是乙烷和少量的丁烷。实验表明乙烯在Pd/SiO2上化学吸附产生了三种表面种:即σ键型的表面种PdCH2CH2Pd、由自加氢和二聚作用形成的正丁基表面种CH3CH2CH2CH2Pd和由解离吸附产生的表面碳化物。

Abstract: Infrared spectra of ethylene chemisorbed on silicasupported palladium at 15℃ have been obtained.On hydrogenation of the chemisorbed surface species at 15℃, ethane and a smaller amount of n-butane were formed.The experiment indicated that ethylene chemisorbed on silicasupported palladium formed three surface species: the σ-bond type surface species PdCH2CH2Pd; the n-butyl type surface species CH3 CH2 CH2 CH2 Pd, probably via a self-hydrogenation and surface dimerization; and the surface carbide probably via the dissociative chemisorption of ethylene.

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