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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 --- n/a

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The conversion and storage of renewable energy sources is key to the transition from a fossil-fuel-based economy to a low-carbon society. Many new game-changing materials have already impacted our lives and contributed to a reduction in carbon dioxide emissions, such as high-efficiency photovoltaic cells, blue light-emitting diodes, and cathodes for Li-ion batteries. However, new breakthroughs in materials science and technology are required to boost the clean energy transition. All success stories in materials science are built upon a tailored control of the interconnected processes that take place at the nanoscale, such as charge excitation, charge transport and recombination, ionic diffusion, intercalation, and the interfacial transfer of matter and charge. Nanostructured materials, thanks to their ultra-small building blocks and the high interface-to-volume ratio, offer a rich toolbox to scientists that aspire to improve the energy conversion efficiency or the power and energy density of a material. Furthermore, new phenomena arise in nanoparticles, such as surface plasmon resonance, superparamegntism, and exciton confinement. The ten articles published in this Special Issue showcase the different applications of nanomaterials in the field of energy storage and conversion, including electrodes for Li-ion batteries and beyond, photovoltaic materials, pyroelectric energy harvesting, and (photo)catalytic processes.

nanoparticle --- nanoalloy --- catalyst --- CO2 reduction --- hydrocarbon --- synthetic fuel --- iron --- cobalt --- perovskite solar cell --- hole transport layer --- CuCrO2 nanoparticles --- thermal stability --- light stability --- aluminum ion batteries --- reduced graphene oxide --- tin dioxide --- 3D electrode materials --- mechanical properties --- TiO2 --- azo dye --- wastewater treatment --- photocatalysis --- sodium formate --- dry etching --- black silicon --- photovoltaics --- plasmonics --- heterogeneous catalysis --- nanoparticles --- single molecule localization --- super-resolution microscopy --- surface-enhanced Raman spectroscopy --- Li-ion batteries --- anodes --- intermetallics --- silicon --- composites --- nanomaterials --- coating --- mechanochemistry --- zinc sulfide --- wurtzite --- co-precipitation synthesis --- solvent recycling --- green synthesis --- scaling up --- pilot plant --- chalcopyrite compounds --- nanocrystals --- hydrothermal --- spin coating --- EIS --- conductivity --- lithium-ion batteries --- SnO2 --- nanoarray --- anode --- high-rate --- n/a

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• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The conversion and storage of renewable energy sources is key to the transition from a fossil-fuel-based economy to a low-carbon society. Many new game-changing materials have already impacted our lives and contributed to a reduction in carbon dioxide emissions, such as high-efficiency photovoltaic cells, blue light-emitting diodes, and cathodes for Li-ion batteries. However, new breakthroughs in materials science and technology are required to boost the clean energy transition. All success stories in materials science are built upon a tailored control of the interconnected processes that take place at the nanoscale, such as charge excitation, charge transport and recombination, ionic diffusion, intercalation, and the interfacial transfer of matter and charge. Nanostructured materials, thanks to their ultra-small building blocks and the high interface-to-volume ratio, offer a rich toolbox to scientists that aspire to improve the energy conversion efficiency or the power and energy density of a material. Furthermore, new phenomena arise in nanoparticles, such as surface plasmon resonance, superparamegntism, and exciton confinement. The ten articles published in this Special Issue showcase the different applications of nanomaterials in the field of energy storage and conversion, including electrodes for Li-ion batteries and beyond, photovoltaic materials, pyroelectric energy harvesting, and (photo)catalytic processes.

Research & information: general --- Physics --- nanoparticle --- nanoalloy --- catalyst --- CO2 reduction --- hydrocarbon --- synthetic fuel --- iron --- cobalt --- perovskite solar cell --- hole transport layer --- CuCrO2 nanoparticles --- thermal stability --- light stability --- aluminum ion batteries --- reduced graphene oxide --- tin dioxide --- 3D electrode materials --- mechanical properties --- TiO2 --- azo dye --- wastewater treatment --- photocatalysis --- sodium formate --- dry etching --- black silicon --- photovoltaics --- plasmonics --- heterogeneous catalysis --- nanoparticles --- single molecule localization --- super-resolution microscopy --- surface-enhanced Raman spectroscopy --- Li-ion batteries --- anodes --- intermetallics --- silicon --- composites --- nanomaterials --- coating --- mechanochemistry --- zinc sulfide --- wurtzite --- co-precipitation synthesis --- solvent recycling --- green synthesis --- scaling up --- pilot plant --- chalcopyrite compounds --- nanocrystals --- hydrothermal --- spin coating --- EIS --- conductivity --- lithium-ion batteries --- SnO2 --- nanoarray --- anode --- high-rate --- nanoparticle --- nanoalloy --- catalyst --- CO2 reduction --- hydrocarbon --- synthetic fuel --- iron --- cobalt --- perovskite solar cell --- hole transport layer --- CuCrO2 nanoparticles --- thermal stability --- light stability --- aluminum ion batteries --- reduced graphene oxide --- tin dioxide --- 3D electrode materials --- mechanical properties --- TiO2 --- azo dye --- wastewater treatment --- photocatalysis --- sodium formate --- dry etching --- black silicon --- photovoltaics --- plasmonics --- heterogeneous catalysis --- nanoparticles --- single molecule localization --- super-resolution microscopy --- surface-enhanced Raman spectroscopy --- Li-ion batteries --- anodes --- intermetallics --- silicon --- composites --- nanomaterials --- coating --- mechanochemistry --- zinc sulfide --- wurtzite --- co-precipitation synthesis --- solvent recycling --- green synthesis --- scaling up --- pilot plant --- chalcopyrite compounds --- nanocrystals --- hydrothermal --- spin coating --- EIS --- conductivity --- lithium-ion batteries --- SnO2 --- nanoarray --- anode --- high-rate