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题名: Two-Step Calcined MoVTeNbO Catalysts for the Oxidation of Propane to Acrylic Acid
作者: Wang Hongxin1, 2;  Deng Zhonghua1, 2;  Chu Wenling1;  Yang Weishen1
关键词: propane ;  selective oxidation ;  acrylic acid ;  molybdenum ;  vanadium ;  tellurium ;  niobium ;  calcination
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2009-06-01
卷: 30, 期:6, 页:490-496
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: MoV(0.3)Te(0.23)Nb(0.12)O(x) catalysts were prepared by the slurry method in a rotary evaporator and used in the selective oxidation of propane to acrylic acid. The influences of the calcination methods and the calcination temperatures in the two-step calcination method on the structure and catalytic performance of the MoV(0.3)Te(0.23)Nb(0.12)O(x) catalysts were investigated. The results indicated that the catalysts obtained by two-step calcination exhibited higher catalytic activity and selectivity than that by one-step calcination. Further investigations showed that the calcination temperatures of each stage for the two-step calcination method, especially those of high-temperature stage, had significant effects on the structure and the catalytic performance of catalysts. The phase composition of the catalysts was a crucial factor in improving the catalytic performance, and another important effect on the conversion of propane was produced by more active lattice oxygen, according to the results of X-ray diffraction and H, temperature-programmed reduction.
关键词[WOS]: MIXED-OXIDE CATALYSTS ;  SELECTIVE OXIDATION ;  (AMM)OXIDATION CATALYSTS ;  ACTIVE-CENTERS ;  O-X ;  AMMOXIDATION ;  PERFORMANCE ;  PHASES ;  M1 ;  M2
语种: 英语
WOS记录号: WOS:000267780100004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141567
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Wang Hongxin,Deng Zhonghua,Chu Wenling,et al. Two-Step Calcined MoVTeNbO Catalysts for the Oxidation of Propane to Acrylic Acid[J]. CHINESE JOURNAL OF CATALYSIS,2009,30(6):490-496.
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