Cationic Porous Organic Polymers for Photo- and Electrocatalytic Applications

用于光催化和电催化应用的阳离子多孔有机聚合物

• 批准号: 469965436
• 负责人: Professor Dr. Arne Thomas
• 金额: --
• 依托单位: National Natural Science Foundation of China
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/469965436?language=en
• 关键词: Cationic; Porous; Organic; Polymers; Photo

In this cooperative project, novel porous organic polymers with cationic charges (+POPs) will be synthesized and used for the photo- and electrocatalytic reduction of CO2 as well as water splitting. First, we will design and prepare various cationic monomers, which will then be polymerised by various methods into high surface area, amorphous and crystalline net- and frameworks with pi-conjugated backbones. The resulting materials will have a range of intriguing properties making them promising photo- and electrocatalysts: First, they are organic semiconductors, which can absorb light in a broad range of the visible spectrum. The cationic charges of the polymers will on the other hand enhance their polarity, wettability and dispersibility in water. By careful selection of the cationic building blocks the band energies of the materials will be tailored and we expect that we can create for the first time highly active metal-free photo- and electrocatalysts for the water oxidation reaction, i.e. the half reaction which is considered as the biggest hurdle for an efficient CO2 reduction and overall water splitting. Finally, the exchange of the counteranions within the networks will allow to systematically tune the properties of the networks

在该合作项目中，将合成带阳离子电荷（+POP）的新型多孔有机聚合物，并用于光催化和电催化还原CO2以及分解水。首先，我们将设计和制备各种阳离子单体，然后通过各种方法将其聚合成具有π共轭主链的高表面积、无定形和结晶网络和框架。由此产生的材料将具有一系列有趣的特性，使它们成为有前途的光催化剂和电催化剂：首先，它们是有机半导体，可以吸收可见光谱范围内的光。另一方面，聚合物的阳离子电荷将增强它们在水中的极性、润湿性和润湿性。通过仔细选择阳离子结构单元，材料的能带能量将被定制，并且我们期望我们可以首次为水氧化反应（即半反应）创建高活性的无金属光催化剂和电催化剂，该半反应被认为是有效CO2还原和整体水分解的最大障碍。最后，网络内抗衡阴离子的交换将允许系统地调节网络的性质