mof衍生Al2O3-ZrO2 /C催化剂催化乙酰丙酸甲酯连续流产γ-戊内酯

Marina Ronda-Leal, Alina M. Balu, Rafael Luque, Francesco Mauriello, Alberto Ricchebuono, Christophe Len, Antonio A. Romero and Emilia Paone
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引用次数: 0

摘要

研究了在连续流动条件下,利用金属-有机骨架(MOFs)衍生的混合金属氧化物催化乙酰丙酸甲酯(ML)转化为γ-戊内酯(GVL)的反应。研究了一系列不同Al/Zr摩尔比的mof衍生Al2O3-ZrO2 /C催化剂,发现其协同效应显著提高了催化效率。物理化学表征表明,在二氧化锆中掺入铝增加了表面积以及催化活性酸和碱的存在,这是ML有效转移加氢成GVL所必需的。Al2O3-ZrO2 /C(1:1)在200℃下反应30 min, ML转化率最高(80%),GVL产率最高(72%)。该研究还强调了反应参数在最大限度地提高GVL产量中的关键作用。在适当的热处理后,还评估了Al2O3-ZrO2 /C(1:1)催化剂的稳定性和可重复使用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Continuous flow production of γ-valerolactone from methyl-levulinate promoted by MOF-derived Al2O3–ZrO2/C catalysts†

This study investigates the catalytic transfer hydrogenation (CTH) of methyl levulinate (ML) into γ-valerolactone (GVL) using mixed metal oxides derived from metal–organic frameworks (MOFs) under continuous flow conditions. A series of MOF-derived Al2O3–ZrO2/C catalysts with different Al/Zr molar ratios were investigated, revealing a synergistic effect that significantly enhances catalytic efficiency. Physico-chemical characterization demonstrates that the incorporation of aluminum into zirconium dioxide increases the surface area as well as the presence of catalytically active acid and basic sites, which are essential for the efficient transfer hydrogenation of ML into GVL. Al2O3–ZrO2/C (1 : 1) exhibited the highest ML conversion rate (80%) and GVL yield (72%) at 200 °C within 30 minutes. The study also emphasizes the critical role of reaction parameters in maximizing GVL production. The stability and reusability of the Al2O3–ZrO2/C (1 : 1) catalyst, following appropriate thermal treatment, were also assessed.

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