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Methanol synthesis from CO2 and H-2 over Pd/ZnO/Al2O3: Catalyst structure dependence of methanol selectivity
Xu, Jinghua1,2; Su, Xiong1; Liu, Xiaoyan1; Pan, Xiaoli1; Pei, Guangxian1; Huang, Yanqiang1; Wang, Xiaodong1; Zhang, Tao1; Geng, Haoran3
KeywordCo2 Hydrogenation Methanol Synthesis Supported Pd Catalyst Pdzn Alloy
Source PublicationAPPLIED CATALYSIS A-GENERAL
2016-03-25
ISSN0926-860X
DOI10.1016/j.apcata.2016.01.006
Volume514Pages:51-59
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordSUPPORTED PALLADIUM CATALYSTS ; LAYERED DOUBLE HYDROXIDES ; GAS SHIFT REACTION ; CARBON-DIOXIDE ; PD-ZN ; METAL NANOPARTICLES ; PARTICLE-SIZE ; HYDROGENATION ; CU ; PERFORMANCE
AbstractCO2 hydrogenation to methanol was investigated over Pd/ZnO/Al2O3, focusing on the influence of the preparation method, reduction temperature and Pd loading on the catalytic performance. The structure of each catalyst was thoroughly examined using various techniques. The results indicated that the methanol selectivity depended on the content of PdZn alloy, which changed dynamically with varying the preparation methods and pretreatment procedures of the catalysts. More specifically, the ratio of PdZn/Pd-0 in the bimetallic compound increased with the rise of the reduction temperature, which eventually led to the increase of methanol selectivity. Additionally, the EXAFS results revealed the presence of ZnOx modified Pd species when the Pd loading was decreased to be lower than 2 wt%. However, the CH3OH selectivity remained almost identical when the reactions were conducted under similar CO2 conversions. Therefore, we conclude that both the PdZn alloy and Pd modified by ZnOx islands are the active sites for methanol synthesis from CO2 hydrogenation. (C) 2016 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000371551200006
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171015
Collection中国科学院大连化学物理研究所
Corresponding AuthorHuang, Yanqiang; Wang, Xiaodong; Geng, Haoran
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.Jinan Univ, Sch Mat Sci & Engn, 106 Jiwei Rd, Jinan 250022, Peoples R China
Recommended Citation
GB/T 7714
Xu, Jinghua,Su, Xiong,Liu, Xiaoyan,et al. Methanol synthesis from CO2 and H-2 over Pd/ZnO/Al2O3: Catalyst structure dependence of methanol selectivity[J]. APPLIED CATALYSIS A-GENERAL,2016,514:51-59.
APA Xu, Jinghua.,Su, Xiong.,Liu, Xiaoyan.,Pan, Xiaoli.,Pei, Guangxian.,...&Geng, Haoran.(2016).Methanol synthesis from CO2 and H-2 over Pd/ZnO/Al2O3: Catalyst structure dependence of methanol selectivity.APPLIED CATALYSIS A-GENERAL,514,51-59.
MLA Xu, Jinghua,et al."Methanol synthesis from CO2 and H-2 over Pd/ZnO/Al2O3: Catalyst structure dependence of methanol selectivity".APPLIED CATALYSIS A-GENERAL 514(2016):51-59.
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