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Catalysts --- Catalysts. --- Catalytic agents --- Catalysis --- Chemical inhibitors --- Chemistry --- Chemical technology --- katalysatoren --- chemical processes --- photocatalysis --- electrocatalysis --- environmental catalysis --- biocatalysis --- catalytic materials

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This book discusses the synthesis of catalytic materials with improved and tailored functionalities via the sol-gel method. Beginning with a general outline of traditional sol-gel chemistry, the book gradually explores surrounding topics, such as the formation of porous structures, while guiding the overall discussion toward the synthesis of heterogeneous catalysts and focusing throughout on the structure-activity relationship in catalytic materials. Featuring several case studies covering major current industrial applications, the book is an ideal guide for researchers looking to tailor catalytic materials for a specific catalytic process and thus exploiting the versatility of the “traditional” sol-gel method.

Chemical thermodynamics --- Physicochemistry --- Enzymology --- Applied physical engineering --- katalyse --- nanotechniek --- fysicochemie --- Gels. --- Physical chemistry. --- Catalysis. --- Materials. --- Nanoscience. --- Materials—Analysis. --- Gels and Hydrogels. --- Physical Chemistry. --- Catalytic Materials. --- Nanophysics. --- Materials Characterization Technique. --- Colloids.

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The use of solid catalysts for the upgrade of renewable sources gives the opportunity to combine the two main cores of green chemistry, that is, on the one hand, the set-up of sustainable processes and, on the other, the use of biomass-derived materials. Solid catalysts have taken on a leading role in traditional petrochemical processes and could represent a key tool in new biorefinery-driven technologies.

biorefinery --- lignin --- citronellal --- biofuel production --- calcination temperature --- carbohydrates --- biomass valorization --- liquid phase reductive depolymerization --- terpenoids --- heterogeneous catalysis --- propylene glycol --- transition metals --- transfer hydrogenation --- acidic clays --- phenolic and aromatic compounds --- biofuels --- aqueous phase --- supported metals --- hybrid materials --- amination --- heterogeneous and homogeneous catalysts --- CuZn catalysts --- catalytic materials --- terpenes --- Lewis acids --- surface functional groups --- value-added products --- carbon nanotubes --- ethylene glycol --- biochar-supported metal catalysts --- calcination atmosphere --- xylitol --- alditol --- HMF --- biomass --- metal–organic frameworks (MOFs) --- hydrothermal carbonization --- solid-acid catalyst --- NMR --- solid base catalyst --- catalytic transfer hydrogenation --- surface functionalization --- transesterification --- biomass conversion --- hydrogen donors --- hydrogenolysis --- octahydroacridines --- solid acids

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Layered double hydroxides (LDHs), also known as two-dimensional anionic clays, as well as the derived materials, including hybrids, nanocomposites, mixed oxides, and supported metals, have been highlighted as outstanding heterogeneous catalysts with unlimited applications in various processes involving both acid–base (addition, alkylation, acylation, decarboxylation, etc.) and redox (oxidation, reduction, dehydrogenation, etc.) mechanisms. This is mainly due to their flexibility in chemical composition, allowing the fine tuning of the nature of the active sites and the control of the balance between them. Additionally, LDHs display a large anion exchange capacity and the possibility to modify their interlayer space, constraining the size and type of reactants entering in the interlamellar space. Furthermore, their easy and economic synthesis, with high levels of purity and efficiency, at both the laboratory and industrial scales, make LDHs and their derived materials excellent solid catalysts. This Special Issue collects original research papers, reviews, and commentaries focused on the catalytic applications of these remarkable materials.

layered double hydroxides (LDH) --- polyoxometalates (POM) --- catalytic materials --- Michael addition --- cobalt-based LDHs --- ultrasonic irradiation --- synergistic effect --- photocatalysis --- nitrophenol degradation --- Zn,Al-hydrotalcite --- ZnO dispersed on alumina --- reusability --- layered double hydroxide --- LDH --- catalytic oxidation --- ethanol --- toluene --- VOC --- photocatalysts --- Cu electrodes --- diazo dyes --- electrocatalysts --- layer double hydroxides --- photoelectrochemical degradation --- hydrotalcites --- mixed oxides --- aldol condensation --- basic catalysts --- exfoliation --- nanosheets --- oxidation --- layered double hydroxides --- base catalysts --- epoxide --- formaldehyde --- oxidation removal --- BiOCl --- manganese --- biodiesel --- transesterification --- hydrothermal --- nickel --- aluminum --- solid base --- structured catalyst --- ethanol steam reforming --- aluminum lathe waste strips --- Ni nanoparticle --- mechano-chemical/co-precipitation synthesis --- organic alkalis (tetramethylammonium hydroxide) --- memory effect --- Claisen-Schmidt condensation --- self-cyclohexanone condensation --- n/a

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Layered double hydroxides (LDHs), also known as two-dimensional anionic clays, as well as the derived materials, including hybrids, nanocomposites, mixed oxides, and supported metals, have been highlighted as outstanding heterogeneous catalysts with unlimited applications in various processes involving both acid–base (addition, alkylation, acylation, decarboxylation, etc.) and redox (oxidation, reduction, dehydrogenation, etc.) mechanisms. This is mainly due to their flexibility in chemical composition, allowing the fine tuning of the nature of the active sites and the control of the balance between them. Additionally, LDHs display a large anion exchange capacity and the possibility to modify their interlayer space, constraining the size and type of reactants entering in the interlamellar space. Furthermore, their easy and economic synthesis, with high levels of purity and efficiency, at both the laboratory and industrial scales, make LDHs and their derived materials excellent solid catalysts. This Special Issue collects original research papers, reviews, and commentaries focused on the catalytic applications of these remarkable materials.

Research & information: general --- Chemistry --- layered double hydroxides (LDH) --- polyoxometalates (POM) --- catalytic materials --- Michael addition --- cobalt-based LDHs --- ultrasonic irradiation --- synergistic effect --- photocatalysis --- nitrophenol degradation --- Zn,Al-hydrotalcite --- ZnO dispersed on alumina --- reusability --- layered double hydroxide --- LDH --- catalytic oxidation --- ethanol --- toluene --- VOC --- photocatalysts --- Cu electrodes --- diazo dyes --- electrocatalysts --- layer double hydroxides --- photoelectrochemical degradation --- hydrotalcites --- mixed oxides --- aldol condensation --- basic catalysts --- exfoliation --- nanosheets --- oxidation --- layered double hydroxides --- base catalysts --- epoxide --- formaldehyde --- oxidation removal --- BiOCl --- manganese --- biodiesel --- transesterification --- hydrothermal --- nickel --- aluminum --- solid base --- structured catalyst --- ethanol steam reforming --- aluminum lathe waste strips --- Ni nanoparticle --- mechano-chemical/co-precipitation synthesis --- organic alkalis (tetramethylammonium hydroxide) --- memory effect --- Claisen-Schmidt condensation --- self-cyclohexanone condensation