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Effects of Ag on morphology and catalytic performance of iron catalysts for Fischer-Tropsch synthesis
Zhang, Yulan1,2; Ding, Mingyue1; Ma, Longlong1; Wang, Tiejun1; Li, Xinjun1
2015
Source PublicationRSC ADVANCES
Volume5Issue:72Pages:58727-58733
AbstractFe3O4 nanoparticles with pore size of 12.4 nm were synthesized and employed as catalyst for Fischer-Tropsch (FT) synthesis. The as-prepared Fe3O4 catalyst achieved a CO conversion of 98.3% while yielding higher than 50 wt% gasoline range (C-5-C-11) hydrocarbons after FT reaction for 48 h. Furthermore, highly activated Ag-doped composites were designed through a one-pot solvothermal method, and then porous core/shell materials were obtained. Interestingly, active metal oxide (Fe3O4) nanoparticles were interspersed on the surface of the Ag promoter. Importantly, pores could enhance the dispersion of metal particles and facilitate heat and mass transfer. The addition of Ag promoter decreased the selectivity to CH4 and enhanced the yield of C-2-C-4 olefins. In particular, 0.8Ag/Fe3O4 displayed high CO conversion (96.4%) and optimum selectivity to C-2-C-4 olefins (28.3 wt%) while yielding a low selectivity to CH4 (12.1 wt%), as well as a good selectivity to C-5-C-11. More importantly, 0.8Ag/ Fe3O4 showed the highest catalytic activity (>1.6 x 10(-4) mol(co) g(Fe)(-1) s(-1)) and the best total hydrocarbon yield (5.25 x 10(-3) g(HC) g(Fe)(-1) s(-1)).
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra10105k
WOS Subject ExtendedChemistry
WOS KeywordENHANCED PHOTOCATALYTIC ACTIVITY ; MICROSPHERES ; SPHERES ; IRRADIATION ; HOLLOW
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000357798400072
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10528
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Yulan,Ding, Mingyue,Ma, Longlong,et al. Effects of Ag on morphology and catalytic performance of iron catalysts for Fischer-Tropsch synthesis[J]. RSC ADVANCES,2015,5(72):58727-58733.
APA Zhang, Yulan,Ding, Mingyue,Ma, Longlong,Wang, Tiejun,&Li, Xinjun.(2015).Effects of Ag on morphology and catalytic performance of iron catalysts for Fischer-Tropsch synthesis.RSC ADVANCES,5(72),58727-58733.
MLA Zhang, Yulan,et al."Effects of Ag on morphology and catalytic performance of iron catalysts for Fischer-Tropsch synthesis".RSC ADVANCES 5.72(2015):58727-58733.
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