应用化学 ›› 1998, Vol. 0 ›› Issue (3): 6-9.

• 研究论文 • 上一篇    下一篇

十一钨钛硅酸盐的合成、表征及电化学性质

李顺玉, 陈亚光, 刘景福, 丁杰   

  1. 东北师范大学化学系 长春130024
  • 收稿日期:1997-09-11 修回日期:1998-01-06 出版日期:1998-06-10 发布日期:1998-06-10
  • 基金资助:
    国家自然科学基金

Synthesis, Characterization and Electrochemical Behaviour of K6SiW11TiO40·16H2O

Li Shunyu, Chen Yaguang, Liu Jingfu, Ding Jie   

  1. Department of Chemistry, Northeast Normal University, Changchun 130024
  • Received:1997-09-11 Revised:1998-01-06 Published:1998-06-10 Online:1998-06-10

摘要: 合成了钛取代杂多硅钨酸盐K6SiW11TiO40·16H2O(SiW11Ti),并用元素分析、红外光谱、紫外-可见光谱和183W NMR谱进行表征。对其溶液电化学性质进行了讨论。其还原过程包括钛的单电子还原和钨的双电子两质子加合过程。在弱酸性溶液中SiW11Ti对NO2-的还原有良好的催化作用.

关键词: 钨钛硅酸盐, 合成, 电化学性质

Abstract: The titanium-substituted heteropolytungstosilicate K6SiW11TiO40·16H2O(SiW11Ti) was synthesized and characterized by elemental analysis, IR, UV-Vis and 183W NMR spectra. Its electrochemical behavior in aqueous solution has been discussed. Its reduction process involves an one-electron reduction of Ti(Ⅳ) and a pair of two electron reduction of W(Ⅵ). It shows a good catalytic activity on the reduction of NO2- in weak acid medium.

Key words: titanium tungstosilicate, synthesis, electrochemical behavior