Unlocking MOF A520 Synthesis: Investigating Critical Parameters

Abstract

Aluminum based Metal-Organic Frameworks (MOFs) have emerged as versatile materials with applications in gas and vapor storage, catalysis, and separation. Among these, aluminum fumarate known as MOF A520 or MIL-53(Al)_Fu exhibits promising humidity scavenging properties due to its unique structure, chemical composition and porosity. However, achieving reproducible, low cost and high-yield synthesis remains a challenge. In this study, we systematically investigate the critical parameters influencing MOF A520 green synthesis. Through hydrothermal method, we explore the impact of aluminum precursor nature and concentration, water and base concentrations in the starting mixture and reaction time. Our findings reveal optimal conditions for MOF A520 crystallization, leading to enhanced yield, purity and cost reduce. This work bridges the gap between laboratory-scale synthesis and industrial-scale production, providing insights that are not available in existing literature.