In recent years, porous organic polymers (POPs) have received increasing attention and research interest due to their formidable potential applications in gas storage/separation, heterogeneous catalysis, photoelectricity, energy storage and conversion, etc. In this work, we report the design and synthesis of a hydroxyl-functionalized porous organic polymer (PCz-res) by conventional FeCl₃-facilitated oxidative polymerization for gas adsorption and energy storage applications. The precursor Cz-res was designed and synthesized by the imidization of anhydride bearing twisted carbazole units with 4,6-diaminoresorcinol. The prepared PCz-res polymer was completely characterized by the usual analytical techniques. PCz-res exhibited a high specific surface area of 1015 m²/g and reversibly adsorbed 20.53 wt% (273 K) and 14.92. wt% (295 K) CO₂ at 1 bar with a moderate isosteric heat of CO₂ adsorption (22.39 kJ/mol). The favourable properties of PCz-res were attributed to the uniform pore size distribution (0.8 nm), high surface area, rich nitrogen content and presence of polar CO₂-philic hydroxyl groups in the polymeric network. These features make the investigated polymer a plausible emerging material in the field of gas adsorption and separation. Moreover, PCz-res was applied in supercapacitor energy storage and exhibited a specific capacitance as high as 434 F g⁻¹ in 1 M H₂SO₄ at a 2 mV/s scan rate and 367 F g⁻¹ at a current density of 0.5 A g⁻¹. Additionally, PCz-res retained 91% of the initial specific capacitance after 2000 charge/discharge cycles at a current density of 10 A g⁻¹. The structural characteristics of PCz-res lead to a larger accessible surface area and a redox-active structure, resulting in efficient charge energy storage.

近年来，多孔有机聚合物（POPs）由于其在气体存储/分离，非均相催化，光电，能量存储和转换等方面的巨大潜在应用而受到越来越多的关注和研究兴趣。在这项工作中，我们报告了设计和常规FeCl ₃促进的氧化聚合合成羟基官能化的多孔有机聚合物（PCz-res），用于气体吸附和能量存储应用。通过将带有扭转咔唑单元的酸酐与4,6-二氨基间苯二酚酰亚胺化来设计和合成前体Cz-res。所制备的PCz-res聚合物通过常规分析技术完全表征。PCz-res表现出1015 m ²的高比表面积/ g，可逆地吸附20.53 wt％（273 K）和14.92。重量百分比（295 K）CO ₂在1 bar下具有中等等规性CO ₂吸附热量（22.39 kJ / mol）。PCz-res的良好特性归因于均匀的孔径分布（0.8 nm），高的表面积，丰富的氮含量以及聚合物网络中存在极性的亲CO _2-亲羟基基团。这些特征使所研究的聚合物成为气体吸附和分离领域中可能出现的新材料。此外，将PCz-res用于超级电容器能量存储，并在1 MH ₂ SO ₄中以2 mV / s的扫描速率和367 F g ^-1表现出高达434 F g ^-1的比电容。在0.5 A g ^-1的电流密度下。另外，在2000A的充电/放电循环之后，PCz-res在10A g ^-1的电流密度下保留了初始比电容的91％。PCz-res的结构特征导致更大的可及表面积和氧化还原活性结构，从而导致有效的电荷能量存储。