Though Metal Organic Frameworks (MOF's) and MOF-derived solids have been employed in various applications, especially catalysis, there is still a constant search for better performing MOF-based hybrid catalysts. In this work, we employed sacrificial template method in synthesizing MIL-53(Al) type - porous Alumina (MA) composites that exhibit different physico-chemical and catalytic properties compared to parent solids (MIL-53 and mesoporous Al₂O₃). Structural investigations demonstrated that composites possess combined structure of both the parent solids. Novel composites possess hierarchical (meso- & micro-) pores, with average pore width in the range of ~14–16 nm. NH₃ adsorption calorimetry and isopropanol test enabled deducing the possible nature and strength of acid-basic sites in composites. ‘MA’ composites show intermediate chemical properties and synergistic multifunctional catalytic behaviour compared to parent solids. This work reveals, for the first time, extensively tunable physico-chemical properties of a novel class of solids: “the MIL-53(Al) type - porous alumina composites” that can have a huge potential as multifunctional catalysts.

尽管金属有机骨架（MOF's）和MOF衍生的固体已用于各种应用，尤其是催化，但仍在不断寻求性能更好的基于MOF的杂化催化剂。在这项工作中，我们采用牺牲模板法来合成MIL-53（Al）型-多孔氧化铝（MA）复合材料，与母体固体（MIL-53和中孔Al ₂ O ₃）相比，该复合材料具有不同的物理化学和催化性能。结构研究表明，复合材料具有两种母体的组合结构。新型复合材料具有分层的（中微孔）微孔，平均孔宽度在〜14–16 nm范围内。NH ₃吸附量热法和异丙醇测试能够推断出复合材料中酸碱性部位的可能性质和强度。与母体固体相比，“ MA”复合材料显示出中等的化学性质和协同的多功能催化性能。这项工作首次揭示了新型固体的广泛可调节的物理化学性质：“ MIL-53（Al）型-多孔氧化铝复合材料”，具有作为多功能催化剂的巨大潜力。