化学学报 ›› 2006, Vol. 64 ›› Issue (10): 975-978. 上一篇    下一篇

研究论文

PEO-12-钨磷酸质子导电聚合物电解质膜

赵旭,刘艳华,周兵,王子忱*   

  1. (吉林大学化学学院物理化学系 长春 130023)
  • 投稿日期:2005-04-08 修回日期:2006-01-11 发布日期:2006-05-25
  • 通讯作者: 王子忱

Proton-conducting Polymer Electrolyte Doped with 12-Tungstophosphoric Acid

ZHAO Xu, LIU Yan-Hua, ZHOU Bing, WANG Zi-Chen*   

  1. (College of Chemistry, Jilin University, Changchun 130023)
  • Received:2005-04-08 Revised:2006-01-11 Published:2006-05-25
  • Contact: WANG Zi-Chen

以聚氧乙烯(PEO)为基质, 在其中掺杂适量的钨磷酸, 制备PEO-H3PW12O40质子导电聚合物电解质膜. XRD及IR测试表明体系中Keggin阴离子与PEO链相互作用形成新的化合物; Keggin阴离子的存在有利于水合质子的形成. PEO-H3PW12O40复合膜的电导率室温最高可达4.0×10-3 S•cm-1.

关键词: 聚氧乙烯, 12-钨磷酸, 质子导电, 电导率

Polymer-inorganic composite films of PEO-12-TPA (TPA: tungstophosphoric acid) have been prepared. X-ray diffraction and infrared spectroscopy indicate that the Keggin anion and the polymer molecules are linked together to form a new composite compound. The addition of the 12-TPA facilitates the formation of H3O+ cations at high relative humidities. The conductivity of PEO-12-TPA reached 4.0×10-3 S•cm-1 with a molar ratio [H+]/[EO] of 0.025 and relative humidity 95%.

Key words: polyethylene oxide, 12-tungstophosphoric acid, proton-conducting, conductivity