Publications by authors named "A Marrocchi"
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a highly promising biodegradable and bio-based thermoplastic recognized for its environmental benefits and potential versatility. However, its industrial adoption has been limited due to its inherent brittleness and suboptimal processability. Despite these challenges, PHBV's performance can be tailored for a wide range of applications through strategic modifications, particularly by blending it with other biodegradable polymers or reinforcing it with natural fibers and bio-based fillers.
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- Beer is the most popular alcoholic drink globally, leading to significant production of by-products like spent grain, hop, and yeast.
- This review focuses on these by-products as potential sources of valuable biomolecules, including proteins and cellulose, and discusses modern biorefining methods for their utilization.
- The article evaluates the advantages and disadvantages of various technologies for processing these by-products, and identifies the most promising applications for industry, such as in food, feed, bioenergy, and biomaterials.
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- Hydrothermal carbonization (HTC) is an eco-friendly process that converts pine needle waste into nitrogen-doped hydrochars, aimed at improving environmental reactions.
- These hydrochars were meticulously characterized and tested as catalytic electrodes for important reactions like oxygen reduction and carbon dioxide reduction, using advanced analytical techniques.
- The study demonstrated that hydrochars synthesized at specific conditions showed exceptional electrocatalytic performance, achieving a high onset potential in the oxygen reduction reaction and producing valuable carbon products in the carbon dioxide reduction reaction.
A sustainable, bioinspired approach to functionalize basalt fibers with an innovative gallic acid (GA)-iron phenyl phosphonate complex (BF-GA-FeP), for the purpose of improving the flame retardancy in composite materials, is developed. BFs were at first pretreated with O, obtaining surface free hydroxyl groups that allowed the subsequent covalent immobilization of biosourced GA units on the fiber through ester linkages. Phenolic -OH groups of the GA units were then exploited for the complexation of iron phenyl phosphonate, resulting in the target-complex-coated BF fiber (BF-GA-FeP).
View Article and Find Full Text PDFIn this work, detailed experimental proof and in-depth analysis of the singlet fission (SF) mechanism, operative in fluorene-based small molecules, are carried out by employing advanced time-resolved spectroscopies with nanosecond and femtosecond resolution. The investigation of the effect of solution concentration and solvent viscosity together with temperature and excitation wavelength demonstrates INTRAmolecular formation of the correlated triplet pair followed by INTERmolecular independent triplet separation via a "super-diffusional" triplet-triplet transfer process. This unconventional INTRA- to INTERmolecular SF may be considered an "ideal" mechanism.
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