论文标题
EC-MOF/阶段I:具有高通量结构和电子特性的导电金属有机框架的计算现成数据库
EC-MOF/Phase-I: A computationally ready database of electrically conductive metal-organic frameworks with high-throughput structural and electronic properties
论文作者
论文摘要
PI堆叠的分层金属有机框架(MOF)的出现为设计基于MOF的设备设计了新的视野,因为它们在永久性孔隙率和异常高的表面积上提供了独特的电导率。通过利用这些导电(EC)MOF的模块化性质,可以为在电池电极,超级电容器和纺纱液等电子设备中的应用中创建无限数量的材料。包括不同金属节点和有机接头在内的结构构建块的置换会导致具有前所未有且未开发的物理和化学特性的新系统。为了提供加速材料设计和发现的平台,我们在这里为创建第一个综合的EC-MOF数据库奠定了基础,并采用实验引导的方法。该数据库的第一阶段,即创建的EC-MOF/阶段I,由1,061个体积和单层结构组成,由实验报告的有机接头,官能团和金属节点的所有可能组合构建。构建了高通量筛选(HTS)工作流程,以实施具有周期性边界条件的密度功能理论计算,以优化结构并计算其一些最显着相关的特性。由于EC-MOF领域的研发长期以来一直缺乏适当的初始晶体结构,因此所有的几何和财产数据都可以通过在这项工作过程中开发的在线平台提供用于社区的使用。该数据库提供了EC-MOF的全面物理和化学数据,以及为特定应用选择合适材料的便利性,从而加速了基于EC-MOF的紧凑型设备的设计和发现。
The advent of pi-stacked layered metal-organic frameworks (MOFs) opened up new horizons for designing compact MOF-based devices as they offer unique electrical conductivity on top of permanent porosity and exceptionally high surface area. By taking advantage of the modular nature of these electrically conductive (EC) MOFs, an unlimited number of materials can be created for applications in electronic devices such as battery electrodes, supercapacitors, and spintronics. Permutation of structural building blocks including different metal nodes and organic linkers results in new systems with unprecedented and unexplored physical and chemical properties. With the ultimate goal of providing a platform for accelerated materials design and discovery, here, we lay the foundations towards creation of the first comprehensive database of EC-MOFs with an experimentally guided approach. The first phase of this database, coined EC-MOF/Phase-I, is comprised of 1,061 bulk and mono-layer structures built by all possible combinations of experimentally reported organic linkers, functional groups and metal nodes. A high-throughput screening (HTS) work flow is constructed to implement density functional theory calculations with periodic boundary conditions to optimize the structures and calculate some of their most significantly relevant properties. Since research and development in the area of EC-MOFs has long been suffering from the lack of appropriate initial crystal structures, all the geometries and property data have been made available for the use of the community through the online platform that is developed in the course of this work. This database provides comprehensive physical and chemical data of EC-MOFs as well as convenience of selecting appropriate materials for specific applications, thus, accelerating design and discovery of EC-MOF-based compact devices.