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Crystal phase effects on the structure and performance of ruthenium nanoparticles for CO2 hydrogenation
Lin, Qingquan1,2,3; Liu, Xiao Yan1; Jiang, Ying4,5; Wang, Yong4,5; Huang, Yanqiang1; Zhang, Tao1
刊名CATALYSIS SCIENCE & TECHNOLOGY
2014
DOI10.1039/c4cy00030g
4期:7页:2058-2063
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]SUPPORTED RU CATALYSTS ; HETEROGENEOUS CATALYSIS ; SELECTIVE METHANATION ; METHANOL SYNTHESIS ; PARTICLES ; OXIDATION ; TIO2 ; PD ; MECHANISM ; IMPACT
英文摘要The effect of TiO2 phase structure on the dispersion of Ru nanoparticles was investigated in this study. Rutile-type TiO2 (r-TiO2) appears to be a superior support to prohibit the aggregation of RuO2 during calcination in air. Compared with anatase-type TiO2 (a-TiO2) supported Ru nanoparticles (4.0 +/- 2.4 nm), r-TiO2 supported ones exhibited a narrower particle size distribution (1.1 +/- 0.2 nm). This unique property was attributed to a strong interaction between RuO2 and r-TiO2 in terms of the formation of the Ru-O-Ti bond, which was confirmed by X-ray absorption measurements and H2-TPR experiments. This strong interaction not only promotes to a great extent the highly efficient dispersion of Ru nanoparticles, but also prevents their aggregation. As a result, the Ru/r-TiO2 catalysts displayed a much higher activity and thermal stability than the Ru/a-TiO2 in the reaction of CO2 methanation.
语种英语
WOS记录号WOS:000337132100024
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143224
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 10049, Peoples R China
4.Zhejiang Univ, Ctr Elect Microscopy, Hangzhou 310027, Zhejiang, Peoples R China
5.Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
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Lin, Qingquan,Liu, Xiao Yan,Jiang, Ying,et al. Crystal phase effects on the structure and performance of ruthenium nanoparticles for CO2 hydrogenation[J]. CATALYSIS SCIENCE & TECHNOLOGY,2014,4(7):2058-2063.
APA Lin, Qingquan,Liu, Xiao Yan,Jiang, Ying,Wang, Yong,Huang, Yanqiang,&Zhang, Tao.(2014).Crystal phase effects on the structure and performance of ruthenium nanoparticles for CO2 hydrogenation.CATALYSIS SCIENCE & TECHNOLOGY,4(7),2058-2063.
MLA Lin, Qingquan,et al."Crystal phase effects on the structure and performance of ruthenium nanoparticles for CO2 hydrogenation".CATALYSIS SCIENCE & TECHNOLOGY 4.7(2014):2058-2063.
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