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Layered double hydroxides (LDHs) possess unique properties, such asStructural reconstitution structural reconstitutionReconstitution from calcined oxides (“memory effectMemory effect”), exfoliationExfoliation into nanosheetsNanosheets, and layered ion-trappingLayered ion-trapping, that make them highly versatile precursors for heterogeneous catalyst development. This review highlights recent advances in utilizing these features to create catalysts with high activity, selectivity, and reusability. RehydrationRehydration and reconstitutionReconstitution of LDHs facilitate the uniform dispersion of active metals (e.g., Ni, Pt, Cu, and Sn) and enhance base site activation, proving effective in oxidationOxidation, dehydrogenationDehydrogenation, and reforming reactionsReforming reactions. Bimetallic systems, such as Pt–Sn and Pt–Ni on LDH-derived supports, demonstrate exceptional performance in industrially relevant processes like propane dehydrogenationDehydrogenation and methane steam reforming. ExfoliatedLDH nanosheets LDH nanosheetsExfoliated LDH nanosheets offer quasi-homogeneous catalysisQuasi-homogeneous catalysis due to their high surface areaSurface area and active site density, benefiting liquid-phase reactions such as electrocatalytic oxidationOxidation and pollutant reduction. Magnetic and monolithic LDH-based catalysts also offer practical advantages in separation and scalability. Overall, LDH-derived materials provide a robust and tunable platform for diverse catalytic applications.

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Layered Double Hydroxide-Derived Catalysts: Rehydration, Reconstitution, Exfoliation, and Supporting for Catalytic Applications

  • 章节

  • 发表日期：

    2026年

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  • Katsuomi Takehira

摘要

Layered double hydroxides (LDHs) possess unique properties, such asStructural reconstitution structural reconstitutionReconstitution from calcined oxides (“memory effectMemory effect”), exfoliationExfoliation into nanosheetsNanosheets, and layered ion-trappingLayered ion-trapping, that make them highly versatile precursors for heterogeneous catalyst development. This review highlights recent advances in utilizing these features to create catalysts with high activity, selectivity, and reusability. RehydrationRehydration and reconstitutionReconstitution of LDHs facilitate the uniform dispersion of active metals (e.g., Ni, Pt, Cu, and Sn) and enhance base site activation, proving effective in oxidationOxidation, dehydrogenationDehydrogenation, and reforming reactionsReforming reactions. Bimetallic systems, such as Pt–Sn and Pt–Ni on LDH-derived supports, demonstrate exceptional performance in industrially relevant processes like propane dehydrogenationDehydrogenation and methane steam reforming. ExfoliatedLDH nanosheets LDH nanosheetsExfoliated LDH nanosheets offer quasi-homogeneous catalysisQuasi-homogeneous catalysis due to their high surface areaSurface area and active site density, benefiting liquid-phase reactions such as electrocatalytic oxidationOxidation and pollutant reduction. Magnetic and monolithic LDH-based catalysts also offer practical advantages in separation and scalability. Overall, LDH-derived materials provide a robust and tunable platform for diverse catalytic applications.