金属有机框架-纳米多孔碳“网络互穿”结构复合材料的制备及其电催化性能研究

Metal-organic frameworks (MOFs), which have highly dispersed active metal centers and the ability to confined reactive guest molecules, make them as one of ideal templates to develop nanoclusters and atomically dispersed metal sites. However, their low conductivity and instability great limits their wide application in the field of electrochemistry. In view of this key problem, we introduce a new idea of “interpenetrating network” and plan to in situ synthesis nanoporous carbon supported Co, Ni, Mn-based MOFs by using nanoporous carbon as templates. The “interpenetrating network” structures can not only effective reserve their original characteristics, but also make them have higher conductivity and stability, thus extending their application in the field of electrochemistry. By adjusting the composition, morphology, size and etc., the electron transfer process and electrocatalytic mechanism of composites can be revealed and the relationships between structures and catalytic performance can be summarized, which provides a new strategy for developing high-performance electrocatalytic systems.

金属有机框架（MOFs）中高度分散的活性金属中心及其孔道可限域活性客体分子的特性，使MOFs成为开发纳米团簇和原子级分散金属催化剂的理想载体之一。然而，MOFs材料的低导电性和不稳定性极大地限制其在电化学领域的广泛应用。针对这一关键问题，我们提出“网络互穿”新思路，拟采用具有高导电性和高稳定性的纳米多孔碳材料为载体，在其孔道中原位合成Co、Ni、Mn基活性MOFs材料，构建金属有机框架-纳米多孔碳“网络互穿”结构复合材料。“网络互穿”结构可使MOFs复合材料在保留各自原有特性的基础上，具有更高导电性和稳定性，从而扩展其在电化学领域的应用范围。通过对复合材料组成、形貌、尺寸等参数的调控，揭示复合材料的电子传递过程及其电催化机理，总结结构-催化性能之间的关系，为发展高性能电催化体系提供新策略。

内容获取失败，请点击重试