DESIGN AND CHARACTERIZATION OF ADVANCED MATERIALS FOR HIGH HYDROGEN STORAGE EFFICIENCY

Abstract

This work investigated the synthesis, characterization and hydrogen storage performance of iron-based metal-organic framework (Fe-MOF) designed for potential integration into composite materials. The Fe-MOFs were synthesized via a solvothermal method, optimized by varying solvent washing protocols to evaluate impacts on crystallinity and structural integrity. The resulting material was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) surface analysis, revealing crystalline structures with octahedral particle shapes and moderate surface areas. Hydrogen storage capacities measured using a high-pressure sorption analyzer demonstrated promising adsorption at cryogenic temperature (77K) with capacities around 1.3 wt%, but significantly lower adsorption at room temperature (~0.35wt%). These findings highlight the potential of synthesized Fe-MOFs as effective materials for hydrogen storage applications, emphasizing the necessity of further structural optimization or compositing strategies to improve performance under ambient conditions.