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Influence of pretreatment temperature on catalytic performance of rutile TiO2-supported ruthenium catalyst in CO2 methanation
Xu, Jinghua1,2; Su, Xiong1; Duan, Hongmin1; Hou, Baolin1; Lin, Qingquan3; Liu, Xiaoyan1; Pan, Xiaoli1; Pei, Guangxian1; Geng, Haoran4; Huang, Yanqiang1; Zhang, Tao1
KeywordCo2 Methanation Ru Tio2 Xas Drifts
Source PublicationJOURNAL OF CATALYSIS
2016
ISSN0021-9517
DOI10.1016/j.jcat.2015.10.025
Volume333Pages:227-237
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordFISCHER-TROPSCH SYNTHESIS ; SUPPORTED RU CATALYSTS ; SURFACE-REACTION RATES ; CARBON-DIOXIDE ; HYDROGEN REDUCTION ; REACTION-MECHANISM ; RU/TIO2 CATALYST ; BOUNDARY SITES ; PARTICLE-SIZE ; RH CATALYSTS
AbstractCatalytic hydrogenation of CO2 to methane was investigated over Ru/rutile TiO2, focusing on the influence of the pretreatment temperature on the activity. Rutile TiO2 stabilized Ru nanoparticles even after pretreatment at 800 degrees C; therefore it was possible to establish the structure-activity relationship without considering the particle size effect. The CO2 turnover frequency initially increased with increasing pretreatment temperature from 300 to 800 degrees C, and reached a maximum value of 1.59 s(-1) on Ru/rutile TiO2 pretreated at 600 degrees C; it decreased to 1.16 s(-1) for the sample pretreated at 800 degrees C. The characterization results indicated that the activity depended on both the extent of encapsulation of Ru particles by TiOx layers and the number of hydroxyl groups on the TiOx surface. The mechanism of CO2 methanation was discussed based on in situ diffuse-reflectance infrared Fourier-transform spectroscopy results. (C) 2015 Elsevier Inc. All rights reserved.
Language英语
WOS IDWOS:000368568700022
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171419
Collection中国科学院大连化学物理研究所
Corresponding AuthorHuang, Yanqiang
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Shandong Univ, Sch Mat Sci & Engn, 17923 Jingshi Rd, Jinan 250061, Peoples R China
3.Yantai Univ, Sch Chem & Chem Engn, Shandong Appl Res Ctr Gold Nanotechnol Au SDARC, Yantai 264005, Peoples R China
4.Jinan Univ, Sch Mat Sci & Engn, 106 Jiwei Rd, Jinan 250022, Peoples R China
Recommended Citation
GB/T 7714
Xu, Jinghua,Su, Xiong,Duan, Hongmin,et al. Influence of pretreatment temperature on catalytic performance of rutile TiO2-supported ruthenium catalyst in CO2 methanation[J]. JOURNAL OF CATALYSIS,2016,333:227-237.
APA Xu, Jinghua.,Su, Xiong.,Duan, Hongmin.,Hou, Baolin.,Lin, Qingquan.,...&Zhang, Tao.(2016).Influence of pretreatment temperature on catalytic performance of rutile TiO2-supported ruthenium catalyst in CO2 methanation.JOURNAL OF CATALYSIS,333,227-237.
MLA Xu, Jinghua,et al."Influence of pretreatment temperature on catalytic performance of rutile TiO2-supported ruthenium catalyst in CO2 methanation".JOURNAL OF CATALYSIS 333(2016):227-237.
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