Abstract The metal-supramolecular polymers, with emerging state-of-the-art electrochromic materials (ECMs), have witnessed explosive developments due to wide promising applications in industry and military. Here, we report novel composites of metal-supramolecular polymer FeL (combining 1,4-bis(2,2':6′,2″-tribipyridin-4′-yl) benzene (L) with Fe) with 0D to 2D functionalized carbon nanomaterials (fullerene (C60), single-walled carbon nanotube (SWCNT) and graphene oxide (GO)), showing significant improved cyclic stability and response time. FTIR spectra indicate that a strong interfacial interaction occurred between FeL and carbon nanomaterials. SEM image clearly shows that the addition of carbon nanomaterials results in a large number of homogeneous micro-pores on the film surface morphology, especially for the FeL/SWCNT, which contributes to the ion migration during the electrochromic process. Consequently, the order of electrochemical activity of the as-prepared composites follows the order of FeL/SWCNT > FeL/C60 > FeL/GO > FeL. Compared with the pristine FeL, the three composites exhibit obviously improved cyclic stability and response time. In particular, the FeL/SWCNT composite displays the optimal electrochromic properties with the bleaching time of 1 s, and the coloring time of 0.9 s, and the highest cyclic stability.

中文翻译：

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制备具有增强电致变色性能的 FeL/碳纳米材料的金属超分子聚合物

摘要 金属超分子聚合物与新兴的最先进的电致变色材料（ECM）一起，由于在工业和军事领域的广泛应用而获得了爆炸性的发展。在这里，我们报告了金属-超分子聚合物 FeL（结合 1,4-双（2,2':6',2”-tribipyridin-4'-yl）苯（L）与 Fe）的新型复合材料，具有 0D 到 2D 功能化碳纳米材料（富勒烯（C60）、单壁碳纳米管（SWCNT）和氧化石墨烯（GO）），显示出显着改善的循环稳定性和响应时间。FTIR 光谱表明 FeL 和碳纳米材料之间发生了强烈的界面相互作用。SEM图像清楚地表明，碳纳米材料的加入导致薄膜表面形貌上出现大量均匀的微孔，尤其是对于FeL/SWCNT，这有助于电致变色过程中的离子迁移。因此，所制备复合材料的电化学活性顺序为 FeL/SWCNT > FeL/C60 > FeL/GO > FeL。与原始的 FeL 相比，三种复合材料表现出明显改善的循环稳定性和响应时间。特别是 FeL/SWCNT 复合材料表现出最佳的电致变色性能，漂白时间为 1 s，着色时间为 0.9 s，循环稳定性最高。