金屬有機骨架(Metal−Organic Frameworks, MOFs)為近二十年來新興的奈米多孔材料之一，其由一系列的金屬節點及有機連接器所構成，具有高比表面積、規律孔洞性、結構可調性等優點，這使得MOF於各個領域中被廣泛研究，像是擬電容器、感測，催化等。其中，鈰基金屬有機骨架(Ce-MOFs)中的Ce-MOF-808具有氧化還原活性，於水中也具有良好的穩定性，為有潛力的水相擬電容器材料之一。然而，由於大部分MOF由不具導電性的有機連接器所構成，其低導電度將會限制電子於MOF骨架上的傳遞，使得其於擬電容器上的發展受限。為解決此問題，許多文獻嘗試使用複合材料來促進電子的傳遞，而此篇研究也首次嘗試使用電聚合的方式結合導電高分子以及Ce-MOF-808以合成複合材料，並應用於電化學儲能領域，期望Ce-MOF-808的氧化還原反應可以貢獻額外的法拉第電容，其高比表面積和高孔隙率的結構可以促進電解液中的離子擴散，而導電高分子，Poly(3,4-ethylenedioxythiophene) (PEDOT)，也可以協助MOF晶體間的電子傳遞，並貢獻非法拉第電容。
根據研究結果，PEDOT的單體會於MOF的孔洞中以及MOF顆粒間進行聚合，進而形成連續的導電相，其複合材料Ce-MOF-808/PEDOT展示了比純MOF及PEDOT更高的面積電容，且在長期充放電下具有更佳的穩定性，說明了PEDOT除了可貢獻非法拉第電容外，還可促進電子於MOF中活性位點的傳遞，也證明了MOF作為剛性骨架以及提供法拉第電流、提升PEDOT非法拉第電流的角色重要性。

In this research, Ce-MOF-808:PEDOT nanocomposites were synthesized by integrating the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) with a cerium-based metal–organic framework (Ce-MOF-808) through pulse electrodeposition. The composition ratio of MOF to PEDOT in the composite materials was precisely controlled by changing the charge density during the electrodeposition process. The resulting samples were characterized in terms of their elemental distribution, surface area, crystallinity, and morphology.
The electrochemical behavior and capacitive performance of pristine Ce-MOF-808, pristine PEDOT thin films, and Ce-MOF-808:PEDOT composite thin films were evaluated in a Na2SO4(aq). The porous framework of Ce-MOF-808 contributes to pseudocapacitance through reversible redox reactions, while PEDOT enhances electron transport and introduces additional double-layer capacitance. Consequently, the Ce-MOF-808:PEDOT composite thin films demonstrate enhanced electrochemical performance compared to both individual MOF and PEDOT thin films, highlighting their potential for supercapacitor applications.

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