Efficient one-pot synthesis of ruthenium catalysts and their role in optimizing sugar alcohol production: investigating structural sensitivity

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The study explores the feasibility of producing ruthenium catalysts supported on char through a one-pot synthesis, an original approach for the preparation of noble metal-based catalysts in this field. This method combines high-temperature stages, such as catalytic support carburization and catalyst activation, in a single step. The innovation represents a significant advancement in utilizing cellulose as a model of waste biomass, enhancing its value, and reducing catalyst production costs. The one-pot catalysts were successfully tested in the hydrogenation reaction of sugar mixtures (L-Arabinose and D-Galactose) under mild conditions, achieving full selectivities. The research also introduces for the first time in that reaction a structural sensitivity analysis of the reaction, comparing experimental results with a theoretical model. The findings reveal a direct correlation between catalytic activity and the {0001} exposed face of hcp ruthenium nanoclusters. This discovery opens new avenues for industrial-scale catalyst development, promising substantial reductions in energy and production costs, and emphasizing the economic appeal of the process.