Zirconium-based metal–organic gels (Zr-MOG) was introduced to overcome the drawbacks such as macro-shaping and poor hydrostability of as-synthesized metal–organic frameworks in microcrystalline powder in industrial applications. Zirconium nitrate oxyhydrate and dicarboxylic acid were initially used as organic ligands to form a soft supramolecular structure in a sol–gel like processing method. Amorphous Zr-MOG were successfully synthesized without chloride ion and toxic modulators for the first time in an attempt to a sustainable and green approach. The estimated as well as observed pore size was at ca. 5 nm with a disordered wormhole-like structure analogous to mesoporous silica materials. The agitation method, aging duration and temperature were highly dependent factors for the formation of amorphous Zr-MOG xerogel in the absence of chloride ions and toxic organic solvents. The evidences suggested that simple and quick washing with ethanol of the obtained gel with aging in between as the key factor to successful formation at room temperature analogous to that of siliceous inorganic materials. X-ray photoelectron spectroscopy (XPS) spectra indicated that the Zr atoms and organic linker bonding were intact, forming an amorphous metal–organic gel network. The deconvolution of O1s spectra resulted in three peaks at 531.9 eV, 530 eV and 529 eV attributable to Zr-O-C, Zr-O-Zr and Zr-O bonds energy, respectively. The presence of Zr-O-C peak suggested successful formation of metal and organic moieties in Zr-MOG. In addition, the amorphous gel network was intact as evidenced in the presence of Zr-O-C peak in as-synthesized, dried gel.

引入锆基金属有机凝胶（Zr-MOG）以克服工业应用中微晶粉末中合成的金属有机骨架的宏观成形和水稳定性差等缺点。硝酸锆羟基水合物和二羧酸最初被用作有机配体以在溶胶-凝胶类加工方法中形成柔软的超分子结构。首次在没有氯离子和有毒调节剂的情况下成功合成了无定形 Zr-MOG，以尝试一种可持续和绿色的方法。估计以及观察到的孔径为大约。5 nm 具有类似于介孔二氧化硅材料的无序虫洞状结构。搅拌法，在没有氯离子和有毒有机溶剂的情况下，老化持续时间和温度是形成无定形 Zr-MOG 干凝胶的高度依赖因素。证据表明，与硅质无机材料类似，在室温下成功形成凝胶的关键因素是用乙醇简单快速地洗涤所获得的凝胶，其间的老化是成功形成的关键因素。X 射线光电子能谱 (XPS) 光谱表明 Zr 原子和有机接头键是完整的，形成了无定形金属-有机凝胶网络。O1s 光谱的解卷积在 531.9 eV、530 eV 和 529 eV 处产生三个峰，分别归因于 Zr-OC、Zr-O-Zr 和 Zr-O 键能。Zr-OC 峰的存在表明在 Zr-MOG 中成功形成了金属和有机部分。此外，