高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (1): 16.

• 研究简报 • 上一篇    下一篇

过渡金属钨硅杂多酸盐合成及酸性研究

吴志芸, 王俊, 赵仲清   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:1992-03-17 修回日期:1992-05-26 出版日期:1993-01-24 发布日期:1993-01-24
  • 通讯作者: 吴志芸
  • 基金资助:

    国家自然科学基金

Synthesis and Activity of Heteropolysilicotungstate Containing Transition Metal Elements

WU Zhi-Yun, WANG Jun, ZHAO Zhong-Qing   

  1. Department of Chemtry, Jilin Utuvernty, Chamgchan, 130023
  • Received:1992-03-17 Revised:1992-05-26 Online:1993-01-24 Published:1993-01-24

关键词: 钨硅杂多化合物, 过渡金属, 酸性

Abstract: The heteropolysilicotungstates containing transition metal elements Mn2+, Co2+ and Ni2+ were synthesized.IRspectra and TPDof the samples adsorbing pyrMine were determined.The IRspectra of the heteropoly compounds are different from those of 12-silicotungtic acid and its potassium salt; the adsorption peak at 1438 cm-1 is visible, even if the sample was treated for 1 h at 200℃ under 0.5 Pa vacuum.The result implies that Lewis acid site exists in the compound.The acid site corresponds to the medium temperature peak on TPDpattern of the compoud adsorbing pyridine.

Key words: HeteropolyslJicotungstate, Transition element, Acidity

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