The transformation of carbon dioxide (CO₂) into functional materials has garnered considerable worldwide interest. Metal–organic frameworks (MOFs), as a distinctive class of materials, have made great contributions to CO₂ capture and conversion. However, facile conversion of CO₂ to stable porous MOFs for CO₂ utilization remains unexplored. Herein, we present a facile methodology of using CO₂ to synthesize stable zirconium-based MOFs. Two zirconium-based MOFs CO₂–Zr-DEP and CO₂–Zr-DEDP with face-centered cubic topology were obtained via a sequential desilylation–carboxylation–coordination reaction. The MOFs exhibit excellent crystallinity, as verified through powder X-ray diffraction and high-resolution transmission electron microscopy analyses. They also have notable porosity with high surface area (S_BET up to 3688 m² g^–1) and good CO₂ adsorption capacity (up to 12.5 wt %). The resulting MOFs have abundant alkyne functional moieties, confirmed through ¹³C cross-polarization/magic angle spinning nuclear magnetic resonance and Fourier transform infrared spectra. Leveraging the catalytic prowess of Ag(I) in diverse CO₂-involved reactions, we incorporated Ag(I) into zirconium-based MOFs, capitalizing on their interactions with carbon–carbon π-bonds of alkynes, thereby forming a heterogeneous catalyst. This catalyst demonstrates outstanding efficiency in catalyzing the conversion of CO₂ and propargylic alcohols into cyclic carbonates, achieving >99% yield at room temperature and atmospheric pressure conditions. Thus, this work provides a dual CO₂ utilization strategy, encompassing the synthesis of CO₂-based MOFs (20–24 wt % from CO₂) and their subsequent application in CO₂ capture and conversion processes. This approach significantly enhances overall CO₂ utilization.

中文翻译：

---

用于二氧化碳利用的二氧化碳基稳定多孔金属有机框架

将二氧化碳（CO ₂）转化为功能材料已引起全世界的广泛关注。金属有机框架（MOF）作为一类独特的材料，为CO ₂捕获和转化做出了巨大贡献。然而，将CO ₂轻松转化为稳定的多孔MOF以利用CO ₂仍有待探索。在此，我们提出了一种使用CO ₂合成稳定的锆基MOF的简便方法。通过连续的脱甲硅烷基化-羧化-配位反应获得了两种具有面心立方拓扑结构的锆基MOFCO ₂ –Zr-DEP和CO ₂ –Zr-DEDP。通过粉末 X 射线衍射和高分辨率透射电子显微镜分析证实，MOF 表现出优异的结晶度。它们还具有显着的孔隙率、高表面积（S _BET高达 3688 m ² g ^–1）和良好的 CO ₂吸附能力（高达 12.5 wt%）。通过¹³ C 交叉极化/魔角旋转核磁共振和傅里叶变换红外光谱证实，所得 MOF 具有丰富的炔功能部分。利用Ag(I)在多种涉及CO ₂的反应中的催化能力，我们将Ag(I)引入到锆基MOF中，利用它们与炔烃碳-碳π键的相互作用，从而形成多相催化剂。该催化剂在催化CO ₂和炔丙醇转化为环状碳酸酯方面表现出出色的效率，在室温和大气压条件下实现>99%的产率。因此，这项工作提供了一种双重CO ₂利用策略，包括合成基于CO ₂的MOF（20-24 wt% 来自CO ₂）及其随后在CO ₂捕获和转化过程中的应用。该方法显着提高了CO _{2 的}总体利用率。