| 研究実績の概要 |
Emerging of MXene-organic 2D heterostructures provide a promising solution to address the obstacles of MXenes for electrochemical applications. We successfully prepared the synthesis of covalent organic framework (COF)-on-MXene heterostructure by an inorganic-organic interfacial nanoarchitectonic strategy. The core-shell heterostructure inherits the 2D architecture (with high conductivity, and reversible ion intercalation/deintercalation ability of MXene), and the hierarchical porous structure (with large specific surface area and extraordinary redox capacitive characteristics of COFs). Owing to the distinctive structural and compositional benefits, the MXene@COF heterostructure exhibited superior capacitive deionization (CDI) performance, with a maximum salt adsorption capacity of 48.08 mg g-1. Notably this value was amongst the state of the art of all CDI electrodes, and especially higher than most MXene-based desalinators. This study highlights the importance of MXene-organic 2D heterostructures for electrochemical desalination, and also is of great significance for the design of other MXene-organic 2D heterostructures via an inorganic-organic interfacial nanoarchitectonics.
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| 今後の研究の推進方策 |
We plan to propose the fabrication of MOF electrodes by (electro)chemically depositing PANI to interweave MOF particles that are deposited on the carbon cloth. In the prepared MOF electrode, PANI can not only be used as a conductive connector to increase the conductivity of the MOFs but also act as a polymer binder to prevent the electrode from being lost. In addition, PANI will also act as an ion exchange layer during the CDI process. As a result, it is expected that the performances of the designed MOF electrode will be greatly improved.
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