P_(2)W_(17)V-WO_(3)纳米粒子复合膜的制备与电致变色性能  

Preparation and electrochromic propertiesof P_(2)W_(17)V-WO_(3)nanoparticle composite films

作　　者：齐力文 付博 祁岳 李丰如 曲小姝[1] 杨艳艳[1] QI Li-wen;FU Bo;QI Yue;LI Feng-ru;QU Xiao-shu;YANG Yan-yan(School of Chemistry and Pharmaceutical Engineering,JiLin Institute of Chemical Technology,Jilin 132022,China)

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132022

出　　处：《东北师大学报（自然科学版）》2024年第1期96-100,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金面上项目(22071080);吉林省教育厅基础研究项目(JJKH20220234KJ)。

摘　　要：为了提高WO_(3)薄膜的电致变色性能,采用层接层自组装技术构筑了基于钒钨酸盐多阴离子[P_(2)W_(17)VO_(62)]^(7-)和WO_(3)纳米粒子的电致变色复合膜P_(2)W_(17)V-WO_(3).利用扫描电子显微镜、原子力显微镜和X射线光电子能谱对复合膜进行表面形貌和元素组成及价态的表征,并通过紫外-可见吸收光谱和电化学联机的方法对复合膜进行膜增长的监测和电致变色性质的研究.结果表明:复合膜P_(2)W_(17)V-WO_(3)的光反差达到23.93%,着色褪色时间分别为3.03和10.12 s,着色效率为111.23 cm^(2)/C,均优于已报道的WO_(3)薄膜材料,且经过600次循环后该复合膜损失率仅为6.9%,稳定性良好.To improve the electrochromic performance of the WO_(3)film,the P_(2)W_(17)V-WO_(3)film based on vanadotungstate polyanion[P_(2)W_(17)VO _(62)]^(7-)and WO_(3)nanoparticles arrays has been fabricated via layer-by-layer self-assembly methods.The morphology of the P_(2)W_(17)V-WO_(3)film modified electrodes were characterized by scanning electron microscopy and atomic force microscopy.Electrochemical workstation and the UV-Vis spectra were used to analyze growth process and electrochromic properties of the P_(2)W_(17)V-WO_(3)film.Compared to many reported of the WO_(3)film,the P_(2)W_(17)V-WO_(3)film has an enhanced electrochemical performance with a larger optical modulation(23.93%),faster switching responses(3.03 s and 10.12 s for coloration and bleaching,respectively),higher CE(111.23 cm^(2)/C),and the losses of it after 600 cycles is 6.9%.

关 键 词：WO_(3) 多金属氧酸盐 磷钨酸盐 电致变色 纳米材料 

分 类 号：O611[理学—无机化学]