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Crucial support effect on the durability of Pt/MgAl2O4 for partial oxidation of methane to syngas
Wang, Fen1,2; Li, Wei-Zhen2; Lin, Jing-Dong1; Chen, Zhi-Qiang2; Wang, Yong1,3
KeywordPlatinum Mgal2o4 Spinel Partial Oxidation Of Methane Syngas Support Effect
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2018-09-05
ISSN0926-3373
DOI10.1016/j.apcatb.2018.03.018
Volume231Pages:292-298
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordCATALYTIC PARTIAL OXIDATION ; SYNTHESIS GAS ; NI/AL2O3 CATALYST ; NANOPARTICLES ; NI ; MECHANISM ; HYDROGEN ; MGAL2O4 ; RH
AbstractCatalyst durability is one of the major problems hindering the commercialization of partial oxidation of methane (POM) for syngas production. We report that a Pt/MgAl2O4-HS catalyst with the MgAl2O4-HS support being synthesized via hydrolysis solvothermal (HS) method demonstrates high stability for POM during a 500 h life testing at 900 degrees C without detectable coke formation, while a Pt/MgAl2O4-CP counterpart in which MgAl2O4 was prepared by an optimized co-precipitation (CP) method exhibits continuous deactivation accompanied by coking. Using a suite of characterizations lncluidng BET, H-2 chemisorption, XRD, STEM, TEM, TG/DTA and TPD of NH3 and CO2, we reveal that the high catalytic durability of the Pt/MgAl2O4-HS is due to the spinel surface of MgAl2O4 HS that can efficiently stabilize Pt against sintering. The Pt/MgAl2O4-CP, however, has defect Al2O3 or MgO-like species on the MgAl2O4-CP surface, inhibiting its capability to stabilize Pt. We confirm that the POM reaction undergoes a combustion-reforming pathway by monitoring the temperatures and gaseous product compositions along the catalyst bed. These results provide guidance for rational design of a longevity catalyst for POM process.
Language英语
WOS IDWOS:000430762300031
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/167113
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi, Wei-Zhen
Affiliation1.Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Washington State Univ, Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA
Recommended Citation
GB/T 7714
Wang, Fen,Li, Wei-Zhen,Lin, Jing-Dong,et al. Crucial support effect on the durability of Pt/MgAl2O4 for partial oxidation of methane to syngas[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,231:292-298.
APA Wang, Fen,Li, Wei-Zhen,Lin, Jing-Dong,Chen, Zhi-Qiang,&Wang, Yong.(2018).Crucial support effect on the durability of Pt/MgAl2O4 for partial oxidation of methane to syngas.APPLIED CATALYSIS B-ENVIRONMENTAL,231,292-298.
MLA Wang, Fen,et al."Crucial support effect on the durability of Pt/MgAl2O4 for partial oxidation of methane to syngas".APPLIED CATALYSIS B-ENVIRONMENTAL 231(2018):292-298.
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