二维石墨炔气体分离膜的构筑及精细调控

膜材料是膜分离技术的核心，研究开发新一代高性能膜材料是膜科学技术领域的发展方向与前沿。本课题从结构设计出发，原位液相合成和构筑二维石墨炔气体分离膜；通过研究前驱体结构、催化剂种类及结构、合成工艺对石墨炔膜结构与构型、孔尺度、结构缺陷形成、膜厚度及均一性的影响及构效关系，提出控制石墨炔膜结构缺陷、厚度及均一性的方法。通过前驱体结构设计，实现对石墨炔分离膜纳米孔尺度的精确控制与调控；研究石墨炔膜转移技术，解决超薄石墨炔膜在转移中形成缺陷的问题；研究基体孔结构形式和尺度对合成石墨炔分离膜结构形态、厚度、均一性及气体分离性能的影响，实现在多孔催化剂基体直接合成超薄无缺陷石墨炔分离膜。形成制备高性能超薄无缺陷二维石墨炔气体分离膜新技术。本课题的实施将开启新一代高性能石墨炔气体分离膜材料的创新研究征程。形成具有我国知识产权的高性能膜材料制备新方法和技术，推动我国膜科学与技术向更高层次与领域发展。

Membrane material is the core of membrane separation technology, and the research and development of high performance membrane materials is the development direction of membrane science. On the basis of molecular structure design, this project explores the in situ liquid phase chemical synthesis methods and for the preparation and construction of a novel two-dimensional graphdiyne membrane for separation. By studying the effects of monomer types, types and structure of catalysts, and synthesis process parameters on the molecular structure and configuration, nano-pore structure and scale, the formation of structure defect, thickness and homogeneity of graphdiyne membrane for separation and the relation of structure-property were studied. The method of controlling the structure defect, thickness and homogeneity will be proposed. The nano-pore size and morphology of two dimensional graphdiyne membranes are accurately regulated by designing the structure of precursors. The transfer technology to prepare the graphdiyne membranes will be studied to solve the problem on the defect forming during the transfer. The effects of pore structure and size of support on the structure, form, thickness, homogeneity and gas separation performance of graphdiyne membrane will be explored. The ultra-thin graphdiyne membrane for separation will be fabricated on porous catalyst supports. And the novel preparation technology about the ultra-thin graphdiyne membrane for separation will be formed. The implementation of this project will be conducive to the development of novel membrane materials. The preparation technology of novel membrane material with high performance with our own intellectual property rights will be developed. And the China's membrane science and technology will be promoted to a higher level and field.