Triboelectric charge-separable probes for quantificationally charge investigating at the liquid-solid interface

Nano Energy, Journal Year: 2023, Volume and Issue: 113, P. 108532 - 108532

Published: May 17, 2023

Language: Английский

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Optimizing bioplastics translation

Nature Reviews Bioengineering, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 18, 2024

Language: Английский

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Assembling Native Elementary Cellulose Nanofibrils via a Reversible and Regioselective Surface Functionalization

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(41), P. 17040 - 17046

Published: Oct. 7, 2021

Selective surface modification of biobased fibers affords effective individualization and functionalization into nanomaterials, as exemplified by the TEMPO-mediated oxidation. However, such a route leads to changes native chemistry, affecting interparticle interactions limiting development potential supermaterials. Here we introduce methodology extract elementary cellulose fibrils treatment biomass with N-succinylimidazole, achieving regioselective C6-OH, which can be reverted using mild post-treatments. No polymer degradation, cross-linking, nor in crystallinity occur under processing conditions, yielding nanofibrils bearing carboxyl moieties, removed saponification. The latter offers significant opportunity reconstitution chemical structural interfaces associated states. Consequently, 3D structuring is made possible same supramolecular features biosynthesized fibers, required unlock full sustainable building block.

Language: Английский

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Molecular-scale controllable conversion of biopolymers into hard carbons towards lithium and sodium ion batteries: A review

Journal of Energy Chemistry, Journal Year: 2022, Volume and Issue: 72, P. 554 - 569

Published: May 10, 2022

Language: Английский

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An instant, repeatable and universal supramolecular adhesive based on natural small molecules for dry/wet environments

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 442, P. 136206 - 136206

Published: April 5, 2022

Language: Английский

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Hydrophilic Chitosan Derivatives: Synthesis and Applications

Chemistry - A European Journal, Journal Year: 2022, Volume and Issue: 28(67)

Published: Sept. 8, 2022

Polymer alternatives sourced from nature have attracted increasing attention for applications in medicine, cosmetics, agriculture, food, water purification, and more. Among them, chitosan is the most versatile due to its full biodegradability, exceptional biocompatibility, multipurpose bioactivity, low toxicity. Although remarkable progress has been made synthetic modification by using C3/C6 secondary/primary hydroxy (-OH) C2 amino (-NH2 ) active sites, solubility under physiological conditions remains limited hampered larger-scale adoption. This review summarizes different methods that increase chitosan's hydrophilicity covalent modifications, namely acid addition, quaternary ammonium formation, phosphorylation, carboxymethylation. We also several each type of substitution fields such as provide an outlook perspective future modifications implementations.

Language: Английский

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Biowaste-derived electrode and electrolyte materials for flexible supercapacitors

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 435, P. 135058 - 135058

Published: Feb. 4, 2022

One of the key challenges in development energy storage devices relates to material sourcing harmony with clean technologies. Herein, cellulose nanocrystals (CNC) extracted from brewery residues are used as transparent hydrogel electrolyte after physical cross-linking aluminum ions (Al3+). The (Al-CNC) exhibits an ultrahigh ionic conductivity (∼24.9 mS cm−1), high optical transmittance (∼92.9% at 550 nm wavelength), outstanding compression strength (3.9 MPa a 70% strain), and tolerates various deformations (e.g., twisting, folding, rolling). Meanwhile, animal bone biowaste is synthesize porous carbon (PC) electrodes (∼879 m2 g−1) that effective delivering specific capacitance (∼804 F g−1 1 A g−1). fully renewable flexible symmetric supercapacitor assembled by sandwiching Al-CNC between two bone-derived PC (PC//Al-CNC//PC). obtained device displays density (18.2 Wh kg−1 425 W kg−1), exceptional power (20 833 7.1 ∼92% retention 6 000 cycles 5 g−1. We further demonstrated biowaste-derived high-performance supercapacitors for their mechanical durability reliable electrochemical performance under bending cycles. All combined, shown be ideally suited applications.

Language: Английский

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Hydrophobization of lignocellulosic materials part II: chemical modification

Cellulose, Journal Year: 2022, Volume and Issue: 29(17), P. 8957 - 8995

Published: Sept. 5, 2022

Abstract Lignocellulosic materials with hydrophobic properties are of great interest for developing sustainable products that can be used in various applications such as packaging, water-repellent and self-cleaning materials, oil water separation or reinforcements biocomposite materials. The hydroxyl functional groups present cellulose provide the possibility to perform chemical modifications cellulosic substrates increase their hydrophobicity. This review is second part a comprehensive on hydrophobization lignocellulosic summarizes recent advances modification substrates. methods described this changes hydrophilicity range from small decrease initial substrate (contact angles below 90°) superhydrophobic above 150°). Additional attention has been paid whether limited surface if it occurs bulk material. We also discuss hydrophobized material packing oil/water purification. Graphical abstract

Language: Английский

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Versatile Assembly of Metal–Phenolic Network Foams Enabled by Tannin–Cellulose Nanofibers

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(12)

Published: Feb. 3, 2023

Metal-phenolic network (MPN) foams are prepared using colloidal suspensions of tannin-containing cellulose nanofibers (CNFs) that ice-templated and thawed in ethanolic media the presence metal nitrates. The MPN facilitates formation solid by air drying, given strength self-supporting nature obtained tannin-cellulose nanohybrid structures. porous characteristics (dry wet) compression rationalized development secondary, cohesive metal-phenolic layers combined with a hydrogen bonding involving CNF. shrinkage is as low 6% for samples 2.5-10% tannic acid (or condensed tannin at 2.5%) respect to CNF content. reaches maximum 10% (using Fe(III) ions), equivalent compressive 70% higher than produced tannin-free foams. Overall, straightforward framework introduced synthesize whose physical mechanical properties tailored tannins well ion species enable networking. Depending on ion, amenable modification according desired application.

Language: Английский

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Mechanically strong nanopapers based on lignin containing cellulose micro- and nano-hybrid fibrils: Lignin content-fibrils morphology-strengthening mechanism

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 311, P. 120753 - 120753

Published: March 7, 2023

Language: Английский

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