Lignocellulosic Biomass‐Based Carbon Dots: Synthesis Processes, Properties, and Applications

Small, Год журнала: 2023, Номер 19(48)

Опубликована: Авг. 3, 2023

Carbon dots (CDs), a new type of carbon-based fluorescent nanomaterial, have attracted widespread attention because their numerous excellent properties. Lignocellulosic biomass is the most abundant renewable natural resource and possesses broad potential to manufacture different composite smart materials. Numerous studies explored using components (such as cellulose, hemicellulose, lignin) in lignocellulosic produce CDs. There are few papers systemically aiming review state-of-the-art works related biomass-derived In this review, significant advances synthesis processes, formation mechanisms, structural characteristics, optical properties, applications biomass-based CDs such cellulose-based CDs, hemicellulose-based lignin-based latest research reviewed. addition, future directions on improvement technology raw materials enhance properties proposed. This will serve road map for scientists engaged exploring more science fields achieve highest material performance goals

Язык: Английский

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Lignin‐Metal Supramolecular Framework Strategy of Self‐Healing Carbon‐Coated CoRu Alloy Nanocatalyst for Efficient Overall Water Splitting

Advanced Energy Materials, Год журнала: 2024, Номер 14(32)

Опубликована: Июнь 19, 2024

Abstract Common precursors for carbon materials typically include petroleum‐based polymers or MOF materials. However, these often encounter challenges such as metal aggregation, high cost, and metals leaching. In this work, a novel of approach lignin‐metal supramolecular framework complex (MSF@Lignin) is introduced. These complexes are formed through oxidative ammonolysis lignin (OAL) to synthesize nitrogen‐doped carbon‐encapsulated CoRu nanocatalyst (CoRu@OALC) via in situ carbonization. CoRu@OALC exhibited exceptional performance both HER (90 mV) OER (200 at the current density 10 mA cm −2 , with an overall water splitting voltage 1.5 V outstanding stability under density. During pyrolysis process, became encapsulated by lignin‐derived carbon, occurring within temperature range 600–700 °C. catalytic active sites primarily located defects showcasing unique “self‐healing” phenomenon layer. Oxygen‐containing intermediates ( * OH, O, OOH) facilitated reconstruction on layer, while hydrogen‐containing H) contributed reappearance defect‐rich structure.

Язык: Английский

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Synthesis of highly dispersed carbon-encapsulated Ru–FeNi nanocatalysts by a lignin–metal supramolecular framework strategy for durable water-splitting electrocatalysis

Green Chemistry, Год журнала: 2024, Номер 26(13), С. 8020 - 8029

Опубликована: Янв. 1, 2024

The construction strategy of designable metal–polyphenol coordination polymers has the potential to be generally applicable produce a range interesting metal/carbon composite catalysts.

Язык: Английский

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Green fabrication of fabric by ethanol/water solvent-mediated self-assembly of homogeneous lignin for oil–water separation

Green Chemistry, Год журнала: 2024, Номер 26(6), С. 3418 - 3428

Опубликована: Янв. 1, 2024

This study reports a green method of grading and modifying formic acid lignin (FL), which was used to prepare stable hydrophobic coatings via the solvent/anti-solvent (ethanol/water) self-assembly method.

Язык: Английский

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Biomass valorization via electrocatalytic carbon–carbon bond cleavage

Journal of Energy Chemistry, Год журнала: 2024, Номер 91, С. 542 - 578

Опубликована: Янв. 11, 2024

Язык: Английский

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Vertically Staggered Porous Ni₂P/Fe₂P Nanosheets with Trace Ru Doping as Bifunctional Electrocatalyst for Alkaline Seawater Splitting

Advanced Functional Materials, Год журнала: 2024, Номер 34(34)

Опубликована: Апрель 29, 2024

Abstract Designing a bifunctional electrocatalyst with high performance and low‐cost is of great significance to promote the large‐scale application water splitting. Herein, porous Ru‐Ni2P/Fe2P heterojunction nanosheets vertically staggered structure are rationally fabricated boost alkaline seawater splitting under large current densities. The catalyst exhibits remarkable activity in media, requiring only 274 331 mV at density 1000 mA cm −2 for hydrogen evolution reaction (HER) oxygen (OER), respectively. Additionally, NiFeOOH layer formed on surface proposed as active phase OER performance. Furthermore, an anion exchange membrane (AEM) electrolyzer assembled by excellent long‐term durability over 100 h, achieving 500 2.0 V 60 °C. Theoretical calculations reveal that Ni2P/Fe2P integration trace Ru leads balanced adsorption desorption properties. Moreover, sites confirmed, which Ni site favorable HER Fe conducive OER. This work provides insight into designing highly efficient cost‐effective overall

Язык: Английский

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Photoelectrocatalytic Pathway for the Preparation of Power‐Effective Aviation Fuel Precursors from Lignin

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract The conversion of lignin into aviation fuel offers a promising, energy‐efficient route for sustainable jet production. key to this transformation lies in the selective hydrogenation lignin's aromatic rings, deoxygenation its oxygen‐containing and phenolic hydroxyl groups, cleavage bonds between polycyclic hydrocarbons. Using phosphorus‐doped CoMn‐P catalyst, electrochemical lignin, assisted by light, can reduce energy consumption ≈20%, resulting significant yield hydrocarbons cycloalkanes. Phosphorus doping modulates catalyst's electronic structure, enhancing adsorption β─O─4 bonds, methoxy thereby enabling with low reaction barrier. This approach provides an innovative pathway directly converting hydrocarbon mixtures suitable fuel.

Язык: Английский

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Structure and Interface Engineering of Ultrahigh‐Rate 3D Bismuth Anodes for Sodium‐Ion Batteries

Small, Год журнала: 2023, Номер 19(35)

Опубликована: Апрель 27, 2023

Sodium-ion batteries (SIBs) have attracted tremendous attention as promising low-cost energy storage devices in future grid-scale management applications. Bismuth is a anode for SIBs due to its high theoretical capacity (386 mAh g-1 ). Nevertheless, the huge volume variation of Bi during (de)sodiation processes can cause pulverization particulates and rupture solid electrolyte interphase (SEI), resulting quick decay. It demonstrated that rigid carbon framework robust SEI are two essentials stable anodes. A lignin-derived carbonlayer wrapped tightly around bismuth nanospheres provides conductive pathway, while delicate selection linear cyclic ether-based electrolytes enable films. These merits long-term cycling process LC-Bi anode. The composite delivers outstanding sodium-ion performance with an ultra-long cycle life 10 000 cycles at current density 5 excellent rate capability 94% retention ultrahigh 100 . Herein, underlying origins improvement elucidated, which rational design strategy anodes practical SIBs.

Язык: Английский

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Electrochemical hydrogenation of levulinic acid, furfural and 5-hydroxymethylfurfural

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 343, С. 123576 - 123576

Опубликована: Ноя. 29, 2023

Язык: Английский

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Oxygen vacancies enhanced electrocatalytic water splitting of P-FeMoO4 initiated via phosphorus doping

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 660, С. 114 - 123

Опубликована: Янв. 13, 2024

Язык: Английский

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