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Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane
Dai, Fei; Li, Zihang; Chen, Xuejing; He, Bin; Liu, Ruixia; Zhang, Suojiang
2018-09-07
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume8Issue:17Pages:4515-4525
Abstract

A series of vanadium phosphorus oxide (VPO) catalysts have been firstly synthesized using iron-based ionic liquids (ILs) as additives for selective oxidation of n-butane to maleic anhydride (MA) in this work. Meanwhile, VPO catalysts doped with inorganic iron salts were also prepared for comparison. The catalytic evaluation presented that iron-based IL modification remarkably enhanced the n-butane conversion and MA yield. A combination of techniques including XRD, Raman, TG, BET, SEM, TEM, XPS and H-2-TPR was employed to investigate the intrinsic distinction among these catalysts. The results demonstrated that iron-based ILs notably change the morphology of the VPO catalyst from a plate-like structure into chrysanthemum-shape clusters, leading to a significant increase in the surface area of the catalyst, and largely promote the formation of (VO)(2)P2O7. All of these were closely associated with the synergistic effect existing between the structure-oriented cations and metal anions in ILs during the preparation of the VPO catalyst. In addition, the differences in the structure and redox properties of the catalysts studied were also discussed and compared with those doped with conventional inorganic salt additives.

DOI10.1039/c8cy01023d
Language英语
WOS KeywordMaleic-anhydride ; Phosphate Catalysts ; Vpo Catalysts ; In-situ ; Active-site ; Fe ; Pyrophosphate ; Activation ; Phase ; Functionalization
Funding ProjectNational Key Research and Development Program of China[2017YFA0206803] ; Key Programs of the Chinese Academy of Sciences[KFZD-SW-413] ; One Hundred Talent Program of CAS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Key Research and Development Program of China ; Key Programs of the Chinese Academy of Sciences ; One Hundred Talent Program of CAS
WOS IDWOS:000444242800024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25902
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Ruixia; Zhang, Suojiang
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Dai, Fei,Li, Zihang,Chen, Xuejing,et al. Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane[J]. CATALYSIS SCIENCE & TECHNOLOGY,2018,8(17):4515-4525.
APA Dai, Fei,Li, Zihang,Chen, Xuejing,He, Bin,Liu, Ruixia,&Zhang, Suojiang.(2018).Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane.CATALYSIS SCIENCE & TECHNOLOGY,8(17),4515-4525.
MLA Dai, Fei,et al."Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane".CATALYSIS SCIENCE & TECHNOLOGY 8.17(2018):4515-4525.
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