用于构建混合合物金属有机框架的共享面积的阿基米德固体堆叠
Yu-Chen Qiu1,2, Shuai Yuan3, Xiao-Xin Li4
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry , Jilin University , Changchun 130012 , PR China.
Journal of the American Chemical Society
|July 26, 2019
概括
我们使用基于多面体的方法设计了两个新的金属有机框架 (MOF). PCN-138在减少二氧化碳方面表现出高的光催化活性,展示了一种新的MOF设计策略.
科学领域:
- 材料化学
- 晶体学
- 催化剂
背景情况:
- 网状化学是金属有机框架 (MOF) 设计的指导原则,它将分子构建单元连接到扩展网络中.
- 虽然成功,但现有的MOF设计策略需要进一步创新,以探索多样化的结构和功能.
- 需要新的方法来扩大MOF的结构复杂性和功能能力.
研究的目的:
- 开发一种基于多面体的新方法来设计和合成金属有机框架 (MOF).
- 使用阿基米德固体作为构建块创建混合连接物MOF.
- 研究合成的MOF的催化潜力,特别是对二氧化碳的光降低.
主要方法:
- 两种混合基MOF的设计和合成,PCN-137和PCN-138,使用面部共享的阿基米德固体.
- 使用高对称的金属集群作为顶点和碳酸联体作为三角形和方形面.
- 由阿基米德固体的有序积累形成的3D结构的特征.
主要成果:
- 成功合成了两种新的MOF,PCN-137和PCN-138,基于罗姆比立方体和立方体的阿基米德固体.
- 通过面部共享来构建复杂的3DMOF架构的多面体策略.
- 在可见光下,PCN-138对二氧化碳光降低具有很高的光催化活性.
结论:
- 基于多面体的方法为设计和准备复杂的MOF结构提供了新的策略.
- PCN-138的高光催化活性归因于对紫和Zr-oxo中心的光敏化作用.
- 这项工作扩展了MOF的设计原则,并突出了它们在异质催化中的潜力.
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