无机化学学报

铁取代钨硅酸盐位置异构体的合成、表征及电化学性质

Synthesis, Characterization and Electrochemical Behavior of Iron Substituted Tungstosilicates Positional Isomer

作者	单位
马荣华	齐齐哈尔大学化学化工学院, 齐齐哈尔161006
刘春涛	齐齐哈尔市环境监测中心站, 齐齐哈尔161005
瞿伦玉	东北师范大学化学学院, 长春130024

摘要:

关键词: 杂多钨硅酸盐电化学性质异构体

基金项目: 国家自然科学基金资助项目(No.29471009).

Abstract: The four heteropoly isomers K₃H₂[α-,β_i-SiW₁₁Fe(H₂O)O₃₉]·xH₂O(β_i=β₁,β₂,β₃)were prepared and Characterized by elementary analysis, IRand UV Spectroscopy. Its electrochemical behavior in aqueous solution has been discussed. The order of Polarographic half-wave potential E_1/2 of heteropoly anions is as follows:β₂>β₁ >β₃ >α . Its reduction process involves an one-electron reduction of Fe(Ⅲ) and a pair of two-electron reduction of W(Ⅵ). Epolidation of maleic acid with H₂O₂ Catalyzed by heteropoly positional isomers was studied.β₃ isomers are the most active.

Keywords: heteropolytungstates electrochemical behavior isomer

投稿时间：2000-07-31 修订日期：2000-10-08

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马荣华,刘春涛,瞿伦玉.铁取代钨硅酸盐位置异构体的合成、表征及电化学性质[J].无机化学学报,2001,17(1):143-148.

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