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Keggin型磷钼杂多蓝的制备新方法——射频氢等离子体固相还原法

李洋, 储伟, 陈慕华   

  1. 四川大学化工学院, 成都 610065
  • 收稿日期:2006-10-09 修回日期:1900-01-01 出版日期:2007-04-10 发布日期:2007-04-10
  • 通讯作者: 储伟

Novel Preparation Method for Keggin Type of Molybdophosphoric Blues——Glow Discharge H2-Plasma Solid-State Reduction Method

LI Yang, CHU Wei*, CHEN Mu-Hua   

  1. Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
  • Received:2006-10-09 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
  • Contact: CHU Wei

摘要: 将射频等离子体技术应用于杂多蓝的制备中, 成功地制备出四电子还原的磷钼杂多蓝, 并对所制备的杂多蓝进行了结构表征及性质研究, 探讨了磷钼杂多酸在射频氢等离子体中的还原行为.

关键词: 磷钼杂多蓝, 射频氢等离子体, 固相还原, Keggin结构, 质子化

Abstract: A novel glow discharge plasma solid-state reduction route was developed to synthesize molybdophosphoric heteropoly blues(MB). The glow discharge plasma played a role of activating hydrogen mole-cules and generated a lot of active species which rapidly induced molybdophosphoric heteropoly acid(PMo12) to form four-electron MB within several minutes. Analyses of the heteropoly blues via UV-Vis, FTIR, XRD and Py-IR confirmed that the materials retained not only the similar Keggin structures of their oxidized parents, but also exhibited more surface acidity due to protonation.

Key words: Molybdophosphoric heteropoly blues, Glow discharge H2-plasma, Solid-state reduction, Keggin structure, Protonation

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