高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 306.

• Chemistry in Materials Sciences • 上一篇    下一篇

Vanadium-based Mixed Oxides Prepared from Thermal Decomposition of Citratorvanadium(IV) Precursor

GAO Gui-Ying, FANG Zhi-Min, JIANG Ya-Qi, ZHANG Hui, MAO Shao-Yu, ZHOU Zhao-Hui, WAN Hui-Lin   

  1. Department of Chemistry, Xiamen University, Xiamen 361005
  • 出版日期:2000-12-31 发布日期:2000-12-31
  • 通讯作者: ZHOU Zhao-Hui E-mail:zhzhou@xmu.edu.cn
  • 基金资助:

    Financially support by the Foundation for University Key Teacher by MOE and NSFC (29973032) and is gratefully acknowledged.

Vanadium-based Mixed Oxides Prepared from Thermal Decomposition of Citratorvanadium(IV) Precursor

GAO Gui-Ying, FANG Zhi-Min, JIANG Ya-Qi, ZHANG Hui, MAO Shao-Yu, ZHOU Zhao-Hui, WAN Hui-Lin   

  1. Department of Chemistry, Xiamen University, Xiamen 361005
  • Online:2000-12-31 Published:2000-12-31
  • Contact: ZHOU Zhao-Hui E-mail:zhzhou@xmu.edu.cn
  • Supported by:

    Financially support by the Foundation for University Key Teacher by MOE and NSFC (29973032) and is gratefully acknowledged.

PDF (PC)

摘要：

Citrate method is broadly used for the preparation of mixed oxides and their highly dispersive pure phases[1]. Up to now, most of the mixed oxides are prepared from putting the related chemical compounds together and sintering the mixture at high temperature, while the complexes formed during this process are uncertain. This will limit the design of high dispersibility and the purities of the resulted mixed oxides. Vanadium-based oxides are catalysts used in the partial oxidation of propane and butane. It has been demonstrated previously that the vanadium citrate complex with well-defined composition and structure is the better precursors for the preparation of V-based mixed oxide[2], Using the precursor of barium dimeric(citrato) oxovanadium(IV) tetrahydrates Ba2[VO(cit)]2·4H2O, barium pyrovanadate may be prepared with pre-determinated compositions and higher purities from thermal decomposition of the well-defined complexes at lower temperature.

Abstract:

Citrate method is broadly used for the preparation of mixed oxides and their highly dispersive pure phases[1]. Up to now, most of the mixed oxides are prepared from putting the related chemical compounds together and sintering the mixture at high temperature, while the complexes formed during this process are uncertain. This will limit the design of high dispersibility and the purities of the resulted mixed oxides. Vanadium-based oxides are catalysts used in the partial oxidation of propane and butane. It has been demonstrated previously that the vanadium citrate complex with well-defined composition and structure is the better precursors for the preparation of V-based mixed oxide[2], Using the precursor of barium dimeric(citrato) oxovanadium(IV) tetrahydrates Ba2[VO(cit)]2·4H2O, barium pyrovanadate may be prepared with pre-determinated compositions and higher purities from thermal decomposition of the well-defined complexes at lower temperature.

TrendMD: