金属有机骨架材料ZIF-8(I2)的湿敏性能研究.doc

文档介绍：
金属有机骨架材料 ZIF-8(I2)的湿敏性能
研究
程鑫 1,张莹 1,王广平 2,张宇鹏 1,陆斌武 3,阮圣平 1,刘彩霞 1
(1. 吉林大学电子科学与工程学院,长春 130012;2. 吉视传媒股份有限公司,长春 130021;
3. 无锡海达安全玻璃有限公司,江苏无锡 214000)
摘要:采用甲醇为溶剂合成了 ZIF-8(分子筛咪唑酯骨架化合物)纳米晶材料,将碘成功掺入
其(ZIF-8(I2)) 孔笼中。并且通过 X 射线衍射对 ZIF-8 进行了晶体结构表征,通过扫描电子
显微镜对 ZIF-8 与 ZIF-8(I2)进行了晶体形貌的表征。以 ZIF-8(I2)为基体材料,采用涂膜法将
其涂覆在 Ag-Pd 叉指电极上,制作成湿敏元件。对元件的湿敏性能进行测试,并且分析了
ZIF-8(I2)的感湿机理。结果表明,中高湿条件下,元件阻抗随湿度变化的曲线有良好的线性
关系,响应时间仅为 25 s,湿滞约为 7%。
关键词:纳米晶;ZIF-8(I2);湿敏性能;感湿机理
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文献标识码:A
Humidity sensing properties of anic framework
materials of ZIF-8(I2)
Cheng Xin1, Zhang Ying1, Wang Guangping2, Zhang Yupeng1, Lu Binwu3, Ruan
Shengping1, Liu Caixia1
(1. College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
2. Jishi Media Co. Ltd., Changchun 130021, China;
3. Wuxi Haida Secutity Glass Co. Ltd., Wuxi Jiangsu 214000, China)
Abstract: ZIF-8 (zeolitic imidazolate frameworks) nanocrystals were synthesized using methanol as
solvent, of which pores were essfully doped in with I2(ZIF-8(I2)). The crystal structure of ZIF-8
was characterized by X-ray diffraction (XRD), and the morphology of ZIF-8 and ZIF-8(I2) was
observed by scanning electron microscope (SEM). Then ZIF-8(I2) humidity sensor was fabricated by
coating the nanocrystal materials on Ag-Pd interdigitated electrodes. The device shows a good
impedance-RH (relative humidity) relationship,