在两亲高分子化合物的存在下,于水溶液中合成了稳定的WO3颗粒悬浮乳液,颗粒分布在100～230nm范围内.乳液放置数月不会发生沉降.SEM表征结果表明,由此乳液形成的薄膜的表面呈多孔颗粒状.电变色性能测试表明薄膜的变色具有良好的可逆性.在扫描速度为100mV/s时,薄膜第一次循环的还原电量QR为10.8mC·cm-2,氧化电量QO为10.3mC·cm-2,电量损失率仅为5%,着色效率(CE)为69.8cm2/C.现场计时电流实验表明,薄膜具有很快的电变色速度.
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