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Citation: FAN Yin-Heng, WU Mei-Xia, HOU Rui, LIAO Shi-Jian. Phase State of Active Species of Highly Active Bi-component Hydrogenation Catalyst Composed of Titanocene Complex and Nano-NaH[J]. Chinese Journal of Applied Chemistry, ;2009, 26(3): 349-351. shu

Phase State of Active Species of Highly Active Bi-component Hydrogenation Catalyst Composed of Titanocene Complex and Nano-NaH

1.
a Institute of Chemistry for Functionalized Materials, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029;
2.
b Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian

Corresponding author: FAN Yin-Heng,
Received Date: 17 March 2008
Available Online: 29 August 2008
Fund Project: 国家自然科学基金(50071025)资助项目 (50071025)

This paper describes the phase state of active species of bi-component catalyst composed of titanocene complex and nano-NaH for the hydrogenation of olefins.When the reaction mixture was separated into soluble and insoluble parts,it was found that the soluble part was not catalytic ally active,while the insoluble part was active,and the catalytical efficiency(turnover,TO) was up to 2 800 for the hydrogenation of olefins.A further study by UV technique showed that the absorbency of titanocene characteristic peak(2.3) for the insoluble part was much stronger than that for the soluble part.It is evident that most of the Ti species was adsorbed in situ on the surface of nano-NaH,and only a small part of them existed in solution.Nano-NaH act both as a reducing agent and a catalyst carrier for the Ti species.The supported catalytic active species of Ti showed a much better activity and stability than their homogeneous counterpart.
- nano-NaH,
- Titanocene complex,
- Ti catalytic species supported on nano-NaH,
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