DICP OpenIR
Improving Syngas Selectivity of Fe2O3/Al2O3 with Yttrium Modification in Chemical Looping Methane Conversion
Kang, Yu1,2; Tian, Ming1; Huang, Chuande1; Lin, Jian1; Hou, Baolin1; Pan, Xiaoli1; Li, Lin1; Rykov, Alexandre I.1; Wang, Junhu1; Wang, Xiaodong1
Corresponding AuthorTian, Ming(tm1982@dicp.ac.cn) ; Wang, Xiaodong(xdwang@dicp.ac.cn)
KeywordCH4 conversion chemical looping reforming Fe-based OCs garnet oxygen vacancy formation energy
Source PublicationACS CATALYSIS
2019-09-01
ISSN2155-5435
DOI10.1021/acscatal.9b02730
Volume9Issue:9Pages:8373-8382
Funding ProjectNational Science Foundation of China (NSFC)[21406225] ; National Science Foundation of China (NSFC)[21573232] ; National Science Foundation of China (NSFC)[21676269] ; National Science Foundation of China (NSFC)[21706254] ; Postdoctoral Science Foundation of China[2014M561261]
Funding OrganizationNational Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordPEROVSKITE-TYPE OXIDES ; PARTIAL OXIDATION ; OXYGEN CARRIERS ; SYNTHESIS GAS ; REDOX CATALYSTS ; HIGH-PERFORMANCE ; LATTICE OXYGEN ; CO2 CONVERSION ; MIXED OXIDES ; COMBUSTION
AbstractIt is of great significance to improve the syngas selectivity of Fe-based oxygen carriers (OCs), because of their sufficient lattice oxygen, low cost, and environmental compatibility in chemical looping partial oxidation of CH4. In this work, it was found that the addition of Y could remarkably increase CO selectivity of Fe2O3/Al2O3 to 98% with a CH4 conversion of , similar to 90%. X-ray diffraction (XRD) and transmission electron microscopy (TEM) characterizations combined with Mossbauer spectroscopy illustrated that the incorporation of Y led to the Fe species gradually transferring from Fe2O3 into the garnet structure (Y3Fe2Al3O12), a newly formed phase, which was found to be highly active for syngas generation. Density functional theory (DFT) calculations demonstrated that such a high CO selectivity of confined Fe species in garnet originated from enhanced oxygen vacancy formation energy (E-ov), compared with Fe2O3, which resulted from the lattice oxygen shared by not only reducible Fe ions but also nonreducible Al and Y ones in a garnet structure. Therefore, our work provides a meaningful guidance of new materials screening for methane partial oxidation in the chemical looping process.
Language英语
Funding OrganizationNational Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China
WOS IDWOS:000485090400074
PublisherAMER CHEMICAL SOC
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/321008/172900
Collection中国科学院大连化学物理研究所
Corresponding AuthorTian, Ming; Wang, Xiaodong
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Kang, Yu,Tian, Ming,Huang, Chuande,et al. Improving Syngas Selectivity of Fe2O3/Al2O3 with Yttrium Modification in Chemical Looping Methane Conversion[J]. ACS CATALYSIS,2019,9(9):8373-8382.
APA Kang, Yu.,Tian, Ming.,Huang, Chuande.,Lin, Jian.,Hou, Baolin.,...&Wang, Xiaodong.(2019).Improving Syngas Selectivity of Fe2O3/Al2O3 with Yttrium Modification in Chemical Looping Methane Conversion.ACS CATALYSIS,9(9),8373-8382.
MLA Kang, Yu,et al."Improving Syngas Selectivity of Fe2O3/Al2O3 with Yttrium Modification in Chemical Looping Methane Conversion".ACS CATALYSIS 9.9(2019):8373-8382.
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