二维离子插层型氧化锰水系墨水的制备及其特性研究

Due to its specific crystal structure, two-dimensional (2D) manganese dioxide with a layered structure (δ-MnO2) is considered as a promising functional material. However, the corresponding processing technology of δ-MnO2 limits its practical application. Printed electronics including spray coating, inkjet printing, screen printing based on the green aqueous ink can break through the 2D δ-MnO2 electrode preparation problem. This project presents the controlling the morphology and structure of 2D δ-MnO2, and realizing the material modification. Preparation of aqueous ink with high concentration, high stability, high dispersion, and revealing the inner link between structure and the dispersion characteristics. Finally, master the method of electrode preparation with large scale printing and achieve the high-performance device assembly. In the aspect of morphology regulation, the influence mechanism of the thickness and the transverse size of nanosheets on the dispersion was explored respectively. In terms of structural modification, the effect of different interlayer ion types on the charged characteristics of 2D δ-MnO2 was studied to further explore the relationship between the electronic structure of the plate and the dispersion. This research is original and innovative and proposes new ideas toward the morphology and structure modification of 2D δ-MnO2. The research results will provide scientific and technical guidance for the fundamental research of 2D materials.

二维（2D）层状结构二氧化锰（δ-MnO2）由于其特异的结构特性，被认为是非常具有研究价值及应用前景的功能材料。但对应的2D δ-MnO2的加工工艺限制了其走向实际应用。水系墨水由于绿色环保，能够以刮涂，喷涂及打印等方式实现电极的印刷式制备从而有望突破2D δ-MnO2电极的制备难题。本项目提出对离子插层型2D δ-MnO2的形貌和结构进行调控，制备高浓度、高稳定性的水系墨水，揭示材料的形貌结构与分散特性的内在联系，掌握基于2D δ-MnO2的大面积印刷式制备方法，并实现高性能器件的组装。在形貌调控方面，探索纳米片的厚度和横向尺寸对分散性的影响机制；在结构改性方面，研究层间离子种类对2D δ-MnO2的电子特性的影响规律及板层电子结构与分散性之间的构效关系。本项研究具有原始创新性，提出了2D δ-MnO2形貌结构改性新思路，研究结果将对2D材料的基础探索提供科学指导。

二维（2D）层状结构二氧化锰（δ-MnO2）由于其特异的结构特性，被认为是非常具有研究价值及应用前景的功能材料。但对应的2D δ-MnO2的加工工艺限制了其走向实际应用。水系墨水由于绿色环保，能够以刮涂，喷涂及打印等方式实现电极的印刷式制备从而有望突破2Dδ-MnO2电极的制备难题。本项目提出对离子插层型2D δ-MnO2的形貌和结构进行调控，制备高浓度、高稳定性的水系墨水，揭示材料的形貌结构与分散特性的内在联系，掌握基于2Dδ-MnO2的大面积印刷式制备方法，并实现高性能器件的组装。在形貌调控方面，探索纳米片的厚度和横向尺寸对分散性的影响机制；在结构改性方面，研究层间离子种类对2D δ-MnO2的电子特性的影响规律及板层电子结构与分散性之间的构效关系。本项研究具有原始创新性，提出了2D δ-MnO2形貌结构改性新思路，研究结果将对2D材料的基础探索提供科学指导。