A metal–organic gel (MOG) similar in constitution to MIL-100 (Fe) but containing a lower connectivity ligand (5-aminoisophthalate) was integrated with an isophthalate functionalized graphene (IG). The IG acted as a structure-directing templating agent, which also induced conductivity of the material. The MOG@IG was pyrolyzed at 600°C to obtain MGH-600, a hybrid of Fe/Fe₃C/FeO_x enveloped by graphene. MGH-600 shows a hierarchical pore structure, with micropores of 1.1 nm and a mesopore distribution between 2 and 6 nm, and Brunauer–Emmett–Teller surface area amounts to 216 m²/g. Furthermore, the MGH-600 composite displays magnetic properties, with bulk saturation magnetization value of 130 emu/g at room temperature. The material coated on glassy carbon electrode can distinguish between molecules with the same oxidation potential, such as dopamine in presence of ascorbic acid and revealed a satisfactory limit of detection and limit of quantification (4.39 × 10⁻⁷ and 1.33 × 10⁻⁶ M, respectively) for the neurotransmitter dopamine.

金属有机凝胶（MOG）与 MIL-100（Fe）结构相似，但含有较低连接性配体（5-氨基间苯二甲酸酯），与间苯二甲酸酯官能化石墨烯（IG）集成。IG 充当结构导向模板剂，也诱导材料的导电性。MOG@IG在600℃下热解得到MGH-600，一种石墨烯包覆的Fe/Fe ₃ C/FeO _{x杂化物。}MGH-600显示出分级孔结构，微孔为1.1 nm，中孔分布在2至6 nm之间，Brunauer-Emmett-Teller表面积达216 m 2 / ^g。此外，MGH-600复合材料表现出磁性能，室温下体饱和磁化强度值为130 emu/g。涂覆在玻碳电极上的材料可以区分具有相同氧化电位的分子，例如抗坏血酸存在下的多巴胺，并显示出令人满意的检测限和定量限（4.39 × 10 -7 和 1.33 × ¹⁰ -6 ^M，分别）为神经递质多巴胺。