A Mesoporous Ce(0.5)Zr(0.5)O(2) Solid Solution Catalyst for CO Hydrogenation to iso-C(4) Hydrocarbons

作者：Ge Shaohui; He Dehua^*; Li Zhanping

来源：Catalysis Letters, 2008, 126(1-2): 193-199.

DOI：10.1007/s10562-008-9606-2

• Ce(0.5)Zr(0.5)O(2)
• Mesoporous
• Isosynthesis
• Hydrogenation
• Catalyst

Mesoporous Ce(0.5)Zr(0.5)O(2) solid solution catalyst was synthesized by a sol-gel process using block copolymer Pluronic P123 as the template. The as-prepared catalyst was characterized by X-ray diffraction, H(2)-Temperature-programed reduction, BET, and X-ray photoelectron spectra techniques. The catalytic properties of the catalyst were evaluated by the synthesis of iso-C(4) hydrocarbons via CO hydrogenation. The mesoporous catalyst showed much better catalytic selectivity and yield of isobutene and isobutane (i-C(4)) from CO hydrogenation at 673-723 K, 5.0 MPa, and 720 h(-1), than the solid Ce(0.5)Zr(0.5)O(2) catalyst prepared by coprecipitation. This was due to the higher BET surface area, pore volume and the reducibility of the mesoporous Ce(0.5)Zr(0.5)O(2) catalyst.

• 出版日期2008-11
• 单位清华大学