一维多元铌酸盐负载金属纳米晶的合成及打印柔性压电材料应用

项目名称： 一维多元铌酸盐负载金属纳米晶的合成及打印柔性压电材料应用

项目编号： No.21671193

项目类型： 面上项目

立项/批准年度： 2017

项目学科： 数理科学和化学

项目作者： 李立宏

作者单位： 中国科学院化学研究所

项目金额： 35万元

中文摘要： 柔性压电器件在医用、军事、人们日常生活等方面具有广阔的应用前景，其开发和利用关系着能源、环境和资源等领域的发展和进步，受到众多研究者的广泛关注。申请人拟围绕新型柔性无铅一维多元钙钛矿型铌酸盐合成及打印柔性无铅压电材料的研究开展工作。将以纳米材料的创新研究为基础，以打印印刷为技术平台。针对一维多元无铅压电材料，采用拓扑熔盐法进行调控合成，并通过液相可控化学合成方法实现精细合理的Ag、Cu、Au等金属纳米晶的负载；对材料的柔性和压电性能进行调控；通过对压电墨水和基材的调节，利用打印喷头的剪切力，对一维材料进行取向性排列，提高材料的压电性能。并且，研究各组分材料之间的协同效应，材料原子组成、结构、取向性排列与性能之间的关系，结合理论计算建立理论模型。从而有指导性地设计制备具有工业应用价值的新型柔性无铅压电墨水，为最终实现高性能的柔性无铅压电材料的工业化应用奠定基础。

中文关键词： 多元铌酸盐；柔性压电材料；金属纳米晶；一维结构；负载

英文摘要： Flexible piezoelectric devices have broad application prospects in the medical, military and people's daily lives. Their development and utilization is in relation to the development of the energy, environment and resources, which has received wide attention from many researchers. The applicant intends to research on synthesis of one dimensional multi niobate supported metal nanocrystal and printing of the flexible piezoelectric materials. The research of nano materials is the foundation of innovation, and the printing is as the technical platform. High orientation of lead-free piezoelectric materials will be synthesized by topological molten salt method, and the loading Ag, Cu and Au metal nano crystals will be obtained by controllable chemical synthesis method; The flexibility and piezoelectric properties of material will be controlled. To improve the piezoelectric properties of the material, the piezoelectric ink and substrate will be adjusted, and the one dimensional material will be orientation arranged by using the print head shearing stress. In addition, the synergistic effect between the components of the materials will be studied, the research of the relationship between the structure, the orientation arrangement and the performance of the material will be carried out, and the theoretical model will be established. All these will lead to design the preparation of high industrial value of novel flexible lead-free piezoelectric ink, which provides the foundation application of high performance flexible lead-free piezoelectric material in the industry.

英文关键词： multi niobate; flexible piezoelectric materials;metal nanocrystal;one dimensional;supported