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This reprint of “Metal Nanoparticles as Catalysts for Green Applications” collects recent works of researchers on metal nanoparticles as catalysts for green applications. All works deal with designing chemical products and processes that generate and use less (or preferably no) hazardous substances by applying the principles of green chemistry. Despite the interdisciplinary nature of the different applications involved, ranging from pure chemistry to material science, from chemical engineering to physical chemistry, in this reprint there are common characteristics connecting the areas together, and they can be described by two words: sustainability and catalysis.

acetylene hydrogenation --- kinetic model --- catalyst decay --- process modeling --- Al2O3 --- bimetallic catalyst --- syngas --- methane --- partial oxidation --- ZrO2 --- metal–organic framework --- bimetallic metal–organic frameworks --- decarboxylative amidation --- polymeric catalytic membranes --- electrospinning --- HMF oxidation --- glucose --- biochemicals --- MCM-41 --- bimetallic --- reactivity --- product selectivity --- neem --- mint --- nZVI synthesis --- lead --- nickel --- soil remediation --- ethanol steam reforming --- Ni/CeO2 --- microemulsion --- coke resistance --- lanthanum doping --- hydrodeoxygenation --- guaiacol --- regeneration --- catalyst deactivation --- n/a --- metal-organic framework --- bimetallic metal-organic frameworks

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Kinetics and reactor modeling for heterogeneous catalytic reactions are prominent tools for investigating and understanding catalyst functionalities at nanoscale and the related rates of complex reaction networks. This book illustrates some examples related to the transformation of simple to more complex feedstocks, including different types of reactor designs, i.e., steady-state, transient plug flow reactors, and TAP reactors for which there is sometimes a strong gap in the operating conditions from ultra-high-vacuum to high-pressure conditions. In conjunction, new methodologies have emerged, giving rise to more robust microkinetics models. As exemplified, they include the kinetics and the dynamics of the reactors and span a large range of length and time scales. The objective of this Special Issue is to provide contributions that can illustrate recent advances and novel methodologies for elucidating the kinetics of heterogeneous reactions and the necessary multiscale approach for optimizing the reactor design. This book is dedicated to postgraduate and scientific researchers, and experts in heterogeneous catalysis. It may also serve as a source of original information for the elaboration of lessons on catalysis for Master students.

microkinetics --- n/a --- internal effectiveness factor --- FTIR spectroscopy --- automation --- power-law --- AEIR method --- promoter --- TAP reactor --- rhodium --- Temkin model --- mechanism analysis --- H2S --- N2O --- catalytic decomposition --- cracking --- 1 --- 2 --- methanol-to-olefins (MTO) --- zeolite --- ZSM-23 --- kinetic model --- pilot-scale fixed-bed reactor --- methane --- effective diffusion coefficient --- SAPO-18 --- kinetics --- alkali metal --- ZSM-5 --- digitalization --- gas-phase oxidation --- kinetic modeling --- temporal analysis of products --- selective oxidation --- Methyl Ethyl Ketone --- amorphous calcium phosphate --- reactor modeling --- HNO3 --- 3-Butadiene --- transient kinetics --- catalytic combustion --- cobalt mixed oxide --- 3-Butanediol dehydration --- ammonia decomposition --- heats of adsorption --- Pd/?-Al2O3 --- SAPO-34 --- Langmuir–Hinshelwood --- hierarchical graphite felts

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The preservation of freshness of fruits and vegetables until their consumption is the aim of many research activities. The quality losses of fresh fruit and vegetables during cold chain are frequently attributable to an inappropriate use of postharvest technologies. Moreover, especially when fresh produce is transported to distant markets, it is necessary to adopt proper storage solutions in order to preserve the initial quality.Nowadays, for each step of the supply chain (packing house, cold storage rooms, precooling center, refrigerate transport, and distribution), innovative preservation technologies are available that, alone or in combination, could preserve the fresh products in order to maintain the principal quality and nutritional characteristics. In this Special Issue, these preservation technologies will be described, highlighting their effect on quality maintenance.

sweet potatoes --- cutting styles --- quality --- antioxidant activity --- peach --- chilling injury --- internal circulation system --- low fluctuation of temperature --- TiO2 photocatalytic --- storage quality --- β-cyclodextrin --- inclusion complex --- carvacrol --- essential oils --- active packaging --- citrus --- shelf life --- decay incidence --- Lactuca sativa L. --- minimally processed lettuce --- modified atmosphere packaging --- oxalic acid --- table grapes --- Botrytis cinerea --- grey mould --- spoilage microbes --- post-harvest --- modified atmosphere packaging (MAP) --- ozone (O3) --- antimicrobial compounds --- preservatives --- biocontrol --- cold atmospheric plasma --- microbes --- disinfection --- non-hazardous --- inactivation --- foodborne pathogen --- kinetic model --- Peleg constant --- papaya --- respiration rate --- nanoparticles coating --- active cardboard box --- plasma-activated water

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This book focuses on some fundamental issues of polymers’ natural degradation. It is mostly devoted to the different aspects of biodegradation, but some data on the action of water, oxygen, ozone, and UV/Vis light is also included. The consideration of the biodegradation in vivo as the superposition of decay and synthesis provides the opportunity for a fresh look at well-known processes.

Research & information: general --- Chemistry --- gelatin methacryloyl --- osteoinduction --- tannic acid --- crosslinking --- hydrogel --- biodegradable --- poly(3-hydroxybutyrate) --- chitosan --- electrospinning --- thermal oxidation --- biodegradation --- Sturm’s method --- biodegradation rates --- arterial hypertension --- vertebral cartilage --- rhomboid fossa --- anaerobic digestion --- biosorbent --- biostimulant --- magnetite --- nanoparticles --- kinetic model --- polyvinyl chloride (PVC) --- pyrolysis --- thermogravimetric analysis (TGA) --- kinetics --- thermodynamics --- artificial neural networks (ANN) --- mechanochemical method --- recycled polyurethane foam --- orthogonal test --- tensile strength --- thermal conductivity --- enzymatic hydrolysis --- deep eutectic solvents --- polyethylene terephthalate --- Box-Behnken design --- microwave depolymerization --- biodegradable polyester --- ultrafine electrospun fibers --- tetraphenylporphyrin --- metalloporphyrin complexes --- Fe(III) --- Sn(IV) --- X-ray diffraction --- DSC --- spin probe EPR method --- SEM --- biopolymeric nanoparticles --- synthesis --- applications --- medicine --- agriculture --- mechanical recycling --- closed-loop --- polyolefins --- circular testing --- polymer degradation --- epoxy resin --- composite material --- hygrothermal ageing --- water diffusion --- Fick model deviation --- statistical analysis --- box plot --- PCA --- titanium silicon oxide --- hydrolytic degradation --- titania --- silica --- antimicrobial activity --- photocatalytic degradation --- n/a --- Sturm's method

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Biofuels have recently attracted a lot of attention, mainly as alternative fuels for applications in energy generation and transportation. The utilization of biofuels in such controlled combustion processes has the great advantage of not depleting the limited resources of fossil fuels while leading to emissions of greenhouse gases and smoke particles similar to those of fossil fuels. On the other hand, a vast amount of biofuels are subjected to combustion in small-scale processes, such as for heating and cooking in residential dwellings, as well as in agricultural operations, such as crop residue removal and land clearing. In addition, large amounts of biomass are consumed annually during forest and savanna fires in many parts of the world. These types of burning processes are typically uncontrolled and unregulated. Consequently, the emissions from these processes may be larger compared to industrial-type operations. Aside from direct effects on human health, especially due to a sizeable fraction of the smoke emissions remaining inside residential homes, the smoke particles and gases released from uncontrolled biofuel combustion impose significant effects on the regional and global climate. Estimates have shown the majority of carbonaceous airborne particulate matter to be derived from the combustion of biofuels and biomass. “Production of Biofuels and Numerical Modelling of Chemical Combustion Systems” comprehensively overviews and includes in-depth technical research papers addressing recent progress in biofuel production and combustion processes. To be specific, this book contains sixteen high-quality studies (fifteen research papers and one review paper) addressing techniques and methods for bioenergy and biofuel production as well as challenges in the broad area of process modelling and control in combustion processes.

microalgae --- hydrothermal liquefaction --- pretreatment --- low O and N biocrude --- biodiesel --- esterification --- free fatty acids --- glycerol --- waste cooking oil --- Computational Fluid Dynamics --- two-stroke --- dual-fuel engine --- simulation --- pre-combustion chamber --- internal combustion engine --- particulate matter emissions --- biomorphic silicon carbide --- vegetal waste --- diesel particulate filter --- biocrude --- metal-oxide catalyst --- bioethanol --- dilute acid pretreatment --- enzymatic hydrolysis --- olive stones --- Pachysolen tannophilus --- response surface methodology --- compression ignition --- direct injection --- cryogenic gas --- diesel engines --- dual fuel engines --- natural gas --- greenhouse gas emissions --- particulate matter --- carotenoids --- extremophiles --- microalgal biotechnology --- eucalyptus kraft lignin --- tree leaf --- pellet --- additive --- biofuel --- circular economy --- piston bowl --- alternative fuel --- vanes --- emulsified biofuel --- combustion --- gasification --- olive --- olive oils --- olive-pruning debris --- olive pomaces --- pyrolysis --- biogas --- environmental impact --- life cycle assessment --- olive pomace --- sustainability --- TGA --- hemicellulose --- cellulose --- lignin --- pseudocomponent kinetic model --- biomass --- culture --- scale-up --- Phaeodactylum tricornutum --- burning characteristics --- fatty acid methyl ester --- added water content --- fuel structure --- distillation temperature --- layered double hydroxide --- toluene steam reforming --- tar --- Ni-based catalyst --- hydrotalcite --- hydrogen production --- n/a