Research Progress on Metal Oxide Catalysts for Dehydration of Sorbitol to Isosorbitol

作者：Shan Liu, Xi Liu, Xiaona Hu, Mingfeng He, Zhuo Yi · 发表于：Journal of Molecular Catalysis(China) · 年份：2026 · DOI：10.3724/j.issn1001-3555.2026.03.008 · 研究领域：Catalysis for Biomass Conversion、Mesoporous Materials and Catalysis、Zeolite Catalysis and Synthesis

Isosorbide is an important bio-based green chemical with a backbone containing two tetrahydrofuran rings in a V-shape, which can be added to polymers to enhance mechanical strength and high-temperature performance. As a chemical intermediate, isosorbide is commonly used in food additives, solvents for cosmetics, and as a reactant in medicine. The acid catalysts are the key to the dehydration of sorbitol to isosorbide, and therefore, developing efficient, high-stability, and reusable heterogeneous catalysts has attracted more attention recently. The research summarizes the progress on metal oxide catalysts for the dehydration of sorbitol to isosorbitol, including the catalytic reaction mechanism, classification, and application of metal oxides, catalyst deactivation, regulatory strategies, and future development. It provides theoretical guidance and technical support for the theoretical design and process optimization of high-performance solid acid catalysts.