Development of Environmental Catalysts Particles by Utilizing Interconnected Nanoporous Structures

Abstract

Porous structures are increasingly getting attentions in developing environmental catalysts, such as three-way catalysts (TWC), due to their ability to improve catalyst performance without changing their composition. This study explored various template-to-TWC mass ratios to create an optimal interconnected nanoporous structure while maintaining the catalyst morphology. This optimized sample was then investigated to compare CO oxidation performance with nanoparticles and aggregate structures. The results demonstrated that the nanoporous structure improved CO oxidation efficiency by 50% compared with other structures. This improvement is attributed to the better diffusion of reactants within the interconnected porous structures of the nanoporous sample. These findings highlight the critical role of nanoporous structures in enhancing the effectiveness of environmental catalysts.