CO2 methanation over TiO2-Al2O3 binary oxides supported Ru catalysts

Jinghua Xu; Qingquan Lin; Xiong Su; Hongmin Duan; Haoran Geng; Yanqiang Huang

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CO₂ methanation over TiO₂-Al₂O₃ binary oxides supported Ru catalysts

第25届中国过程控制会议专栏 | Updated：2026-01-06

- CO₂ methanation over TiO₂-Al₂O₃ binary oxides supported Ru catalysts
- Chinese Journal of Chemical Engineering Vol. 24, Issue 1, Pages: 140-145(2016)
- Affiliations：
  
  1. 2 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences,Dalian,China,116023
  2. 3 School of Chemistry and Chemical Engineering, Yantai University, Shandong Applied Research Center of Gold Nanotechnology (Au-SDARC),Yantai,China,264005
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2016
- Accepted：
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摘要

Abstract

TiO

modified Al

binary oxide was prepared by a wet-impregnation method and used as the support for ruthenium catalyst. The catalytic performance of Ru/TiO

-Al

catalyst in CO

methanation reaction was investigated. Compared with Ru/Al

catalyst

the Ru/TiO

-Al

catalytic system exhibited a much higher activity in CO

methanation reaction. The reaction rate over Ru/TiO

-Al

was 0.59 mol CO

·(g Ru)

-1

·h

-1

3.1 times higher than that on Ru/Al

[0.19 mol CO

·(g Ru)

-1

·h

-1

]

. The effect of TiO

content and TiO

-Al

calcination temperature on catalytic performance was addressed. The corresponding structures of each catalyst were characterized by means of H2-TPR

XRD

and TEM. Results indicated that the averaged particle size of the Ru on TiO

-Al

support is 2.8 nm

smaller than that on Al

support of 4.3 nm. Therefore

we conclude that the improved

activity over Ru/TiO

-Al

catalyst is originated from the smaller particle size of ruthenium resulting from a strong interaction between Ru and the rutile-TiO

support

which hindered the aggregation of Ru nanoparticles.

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Related Institution

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