高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (10): 1096.

• 研究论文 • 上一篇    下一篇

磷钼酸和磷钼钒酸及其盐的氧化还原特性

张恒彬, 吴通好, 阎晓斌, 冷玉春, 李树家   

  1. 吉林大学化学系
  • 收稿日期:1988-12-02 出版日期:1990-10-24 发布日期:1990-10-24
  • 通讯作者: 张恒彬, 邮编: 130023
  • 基金资助:

    国家自然科学基金

The Redox Characteristics of Molybdophosphoric Heteropolyacids, Molybdovanadophosphoric Heteropolyacids and Their Salts

Zhang Hengbin, Wu Tonghao, Yan Xiaobin, Leng Yuchun, Li Shujia   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1988-12-02 Online:1990-10-24 Published:1990-10-24

PDF (PC)

被引次数

19

摘要： 本文以硫酸为支持电解质,在水-1,4-二氧六环混合溶剂中,用电化学方法研究了Keggin结构的H3PMo12O40、M3PMo12O40(M=NH4,Na,K)、H4PMo11VO40及MnH4-nPMo11VO40(M=Na,La,K,Eu;对于Na和La,n=1～4,对于K,n=4;对于Eu,n=2)的氧化还原特性。还分析了钼和钒的氧化还原顺序及其可逆性。

关键词: 杂多酸, 氧化还原, 磷钼酸, 磷钼钒酸

Abstract: The Oxidation-reduction behaviour of H3PMo12O40, M3PMo12O40 (M = NH4, Na, K), H4PMo11VO40 and Mn,H4-nPMo11VO40(M = Na, La, K, Eu; n=1～4 for Na and La, n=4 for K, n= 2 for Eu) with a Keggin structure was studied by an electrochemical method in the mixed solvents of water-dioxane containing supporting electrolyte of 0. 5 mol/L H2SO4. The molybdenum in the acids and in their salts can gain or lose eight electrons, the vanadium in them can gain or lose one electron. The order and reversibility of oxidation- reduction for molybdenum and vanadium were also analyzed.

Key words: Heteropolyacid, Redpx, Molybdophosphoric heteropolyacid, Molybdovanadophosphoric heteropolyacid

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