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题名: Modulating the methanation activity of Ni by the crystal phase of TiO2
作者: Lin, Yaping1, 2;  Zhu, Yifeng1;  Pan, Xiulian1;  Bao, Xinhe1
刊名: CATALYSIS SCIENCE & TECHNOLOGY
发表日期: 2017-07-07
DOI: 10.1039/c7cy00124j
卷: 7, 页:2813-2818
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
英文摘要: We demonstrate that the methanation activity of Ni catalysts is modulated by the crystal phase of the TiO2 support. The rutile TiO2 (r-TiO2)-supported Ni catalyst gives a turnover frequency almost two orders of magnitude higher than the anatase TiO2 (a-TiO2)-supported catalyst although the two catalysts exhibit a similar mean Ni particle size. Characterization by H-2-TPR, H-2-TPD, XPS and IR reveals a stronger interaction between Ni and r-TiO2, leading to a higher capability of CO activation and hydrogenation activity of Ni although Ni is partially covered by TiOx overlayers during reaction. Interestingly, the modulating effects of the titania crystal phases are much more pronounced on the activity of Ni in CO2 methanation.
关键词[WOS]: SUPPORTED NICKEL-CATALYSTS ;  SELECTIVE CO METHANATION ;  SYNTHETIC NATURAL-GAS ;  ZIRCONIA CATALYSTS ;  HYDROGENATION ;  NI/TIO2 ;  COADSORPTION ;  ADSORPTION ;  MECHANISM ;  TITANIA
语种: 英语
WOS记录号: WOS:000404887400016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152070
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China

Recommended Citation:
Lin, Yaping,Zhu, Yifeng,Pan, Xiulian,et al. Modulating the methanation activity of Ni by the crystal phase of TiO2[J]. CATALYSIS SCIENCE & TECHNOLOGY,2017,7:2813-2818.
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