DICP OpenIR
Activation of CO and surface carbon species for conversion of syngas to light olefins on ZnCrOx-Al2O3 catalysts
Li, Yangyang1; Hu, Jun1; Xu, Jie1; Zheng, Yanping1; Chen, Mingshu1; Wan, Huilin1; Fu, Qiang2; Yang, Fan2; Bao, Xinhe2
Corresponding AuthorChen, Mingshu(chenms@xmu.edu.cn)
KeywordZnCrOx-Al2O3 catalyst CO hydrogenation Light olefins Surface carbon species In situ spectroscopies
Source PublicationAPPLIED SURFACE SCIENCE
2019-11-15
ISSN0169-4332
DOI10.1016/j.apsusc.2019.07.082
Volume494Pages:353-360
Funding ProjectNational Natural Science Foundation of China[91545204] ; National Natural Science Foundation of China[21573180] ; National Natural Science Foundation of China[21872110]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS Research AreaChemistry ; Materials Science ; Physics
WOS KeywordMETHANOL SYNTHESIS ; SYNTHESIS GAS ; OXIDATIVE DEHYDROGENATION ; SELECTIVE CONVERSION ; DOPED GRAPHENE ; MIXED OXIDES ; HYDROGENATION ; TRANSFORMATION ; ADSORPTION ; NANOPARTICLES
AbstractAs an effective part of the bifunctional catalyst for conversion of syngas to light olefins, ZnCrOx-Al2O3 mixed oxides were studied using surface sensitive techniques of X-ray photoelectron spectroscopy (XPS) and high-sensitivity low-energy ion scattering spectroscopy (HS-LEIS), as well as in situ Fourier Transform infrared spectroscopy (FTIR) and temperature-programmed desorption (TPD). Reducing and oxidizing treatments induce significant changes of the top-surface compositions as observed by HS-LEIS. After CO/H-2 treatment, an obvious amount of dissociated carbon and oxygen-containing carbon species were evidenced on the surface by XPS and HS-LEIS. The oxygen-containing carbon species include bicarbonate, carbonate and formate, and can be efficiently removed under H-2. Formate species may be formed by hydrogenation of the carbonate and bicarbonate species, and can be removed to regenerate the active sites for CO dissociation. TPD results under H-2 atmosphere show the production of methane, ethane and methanol for the surface pre-treating in CO at 300 degrees C.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000487838900041
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/172247
Collection中国科学院大连化学物理研究所
Corresponding AuthorChen, Mingshu
Affiliation1.Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces,Natl Engn, Xiamen 361005, Fujian, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Yangyang,Hu, Jun,Xu, Jie,et al. Activation of CO and surface carbon species for conversion of syngas to light olefins on ZnCrOx-Al2O3 catalysts[J]. APPLIED SURFACE SCIENCE,2019,494:353-360.
APA Li, Yangyang.,Hu, Jun.,Xu, Jie.,Zheng, Yanping.,Chen, Mingshu.,...&Bao, Xinhe.(2019).Activation of CO and surface carbon species for conversion of syngas to light olefins on ZnCrOx-Al2O3 catalysts.APPLIED SURFACE SCIENCE,494,353-360.
MLA Li, Yangyang,et al."Activation of CO and surface carbon species for conversion of syngas to light olefins on ZnCrOx-Al2O3 catalysts".APPLIED SURFACE SCIENCE 494(2019):353-360.
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