Preparation of novel titania supported palladium catalysts for selective hydrogenation of acetylene to ethylene

被引：51

作者：

Hong, Jingping

Chu, Wei

Chen, Muhua

Wang, Xiaodong

Zhang, Tao

机构：

[1] Sichuan Univ, Dept Chem Engn, Chengdu 610065, Sichuan, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 03期

基金：

中国国家自然科学基金;

关键词：

preparation of titanium dioxide; supported palladium catalyst; selective hydrogenation; acetylene; ethylene;

D O I：

10.1016/j.catcom.2006.08.010

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：

Novel titania supports have been designed and elaborated with the hydrolysis precipitation method, by adjusting and controlling of the main preparation parameters, such as pH value, adding rate of tetrabutyl titanate Ti(OBU)(4), and calcining temperature of precursor during support preparation. The new titania supported Pd catalysts were prepared and investigated for selective hydrogenation of acetylene to ethylene. The catalyst samples have been characterized by temperature programmed reduction (TPR), XRD and BET techniques. The experimental results indicated that with MgO modification, the improved catalyst (0.5%Pd-MgO/TiO2) showed better performance of high and stable activity. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：593 / 597

页数：5

共 32 条

[1] Surface structures in the SMSI state;: Pd on (1 x 2) reconstructed TiO2(110) [J].