Spontaneous Corrosion Induced Scalable Fabrication of Bayberry‐Like Ni@Ni₃S₂ Core–Shell Catalysts for 5‐Hydroxymethylfurfural Oxidation

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 7, 2024

Abstract Electrocatalytic oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) presents a promising pathway for synthesizing the value‐added chemical, 2,5‐furandicarboxylic acid (FDCA). However, it is still lack scalable strategies to fabricate electrocatalysts with high activity and selectivity. Herein, bayberry‐like Ni@Ni 3 S 2 core–shell catalyst prepared via spontaneous corrosion strategy HMF electro‐oxidation. The Ni shells abundant electron‐deficient sites facilitate generation high‐valence 3+ OOH active species. Additionally, in situ 2− SO 4 enhances electron proton transport capacity. Both high‐performance liquid chromatography (HPLC) density functional theory (DFT) analyses reveal that preferentially selects 2,5‐dicarboxyfurylfuran (DFF) due lower reaction energy barrier from DFF, rate‐determining step DFF generate 5‐formylfuran‐2‐carboxylic (FFCA) significantly accelerated. Consequently, yield FDCA Faraday efficiency are found be 99.20% 99.35%, respectively, they reach 88.79% 90.33% after ten cycles, showing excellent stability. Moreover, mass production 13.97 g successfully synthesized using strategy. This work offers valuable reference designing catalysts by manipulating routes achieve efficient biomass conversion.

Язык: Английский

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Strong electronic metal-support interaction between Ru nanoclusters and Fe single atoms enables efficient base-free oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124994 - 124994

Опубликована: Дек. 1, 2024

Язык: Английский

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Acidic O Dopants Collaborating with Oxidized Pd Centers to Promote Hydrodeoxygenation of Vanillin

Опубликована: Янв. 1, 2025

Hydrodeoxygenation is the key technology for realizing conversion of biomass into high value-added chemicals, but usually encounters low efficiency and harsh conditions due to rich electron density strong C-O bonds O-containing groups. Herein, an efficient catalyst precisely constructed with abundant acidic O dopants well-exposed oxidized Pd centers hydrodeoxygenation vanillin. Through a tannic acid-assisted strategy, it on alumina that electron-deficient species doped as ether types in carbon along ultra-small PdO nanoparticles. The collaboration sites from boosts vanillin valuable 2-methoxy-4-methylphenol 99% yield turnover frequency value 752 h-1 under mild (80 oC, 0.5 MPa H2), significantly surpassing similar catalysts without or well commercial heterogeneous homogeneous catalysts. Further theoretical calculation studies disclose are superior metallic hydrogenating aldehyde group, important promoting subsequent alcohol-based deoxygenation process.

Язык: Английский

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Understanding the Different Preference of PtM (M=Fe, Co, Ni, Cu, Zn) Bimetallic Surfaces for Catalyzing Furanic Compounds to Chain Alcohol in Aqueous Solution

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125078 - 125078

Опубликована: Янв. 1, 2025

Язык: Английский

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Noble Metal-Based Catalysts for Selective Oxidation of HMF to FDCA: Progress in Reaction Mechanism and Active Sites

Chemistry, Год журнала: 2025, Номер 7(1), С. 17 - 17

Опубликована: Фев. 1, 2025

5-hydroxymethylfurfural (HMF) is oxidized to 2,5-furandicarboxylic acid (FDCA), which serves as a sustainable alternative the petrochemical derivative terephthalic polyester monomer. Currently, noble metal catalysts that combine high HMF conversion rates with FDCA selectivity have become one of mainstream catalytic systems for oxidation. This paper summarizes and discusses research progress on oxidation over different metal-based by combining DFT theoretical calculations, introducing various reaction pathways mechanisms It also analyzes characteristics electronic properties active sites, geometric effects, metal–support interactions, confinement discussing revealing roles activation structure catalysts, substances, valence states, activity, relationship between C=O OH groups. Finally, it presents views challenges future development in design catalysts.

Язык: Английский

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Conversion of High-Value Products from Biomass Aqueous Phase Through Enzymatic-Hydrothermal Treatment

Опубликована: Янв. 1, 2025

Язык: Английский

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Green Production of 5-Hydroxymethylfurfural (Hmf) in Biphasic Continuous Microreactor Using Terpenoid-Based Solvents

Опубликована: Янв. 1, 2025

Язык: Английский

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Contributions of Oxide Support Reducibility for Selective Oxidation of 5-Hydroxymethylfurfural over Ag-Based Catalysts

Catalysts, Год журнала: 2025, Номер 15(3), С. 248 - 248

Опубликована: Март 5, 2025

As a type of sustainable and renewable natural source, biomass-derived 5-hydroxymethyl furfural (HMF) can be converted into high-value chemicals. This study investigated the interactions between silver (Ag) oxide supports with varied reducibility their contributions to tuning catalytic performance in selective oxidation HMF. Three representatives manganese dioxide (MnO2), zirconium (ZrO2), silicon (SiO2) were selected support Ag active sites. The catalysts characterized by techniques such as STEM (TEM), Raman, XPS, H2-TPR, FT-IR spectroscopy explore morphology, dispersion, surface properties, electronic states. results demonstrated that MnO2 highest exhibited superior performance, achieving 75.4% HMF conversion 41.6% selectivity for 2,5-furandicarboxylic acid (FDCA) at 120 °C. In contrast, ZrO2 SiO2 limited capabilities, mainly producing intermediate products like FFCA and/or HMFCA. ability these was governed reducibility, because it determined density oxygen vacancies (Ov) hydroxyl groups (OOH), eventually influenced activity, reaction rate: Ag/MnO2 (3214.5 molHMF·gAg−1·h−1), Ag/ZrO2 (2062.3 Ag/SiO2 (1394.4 molHMF·gAg−1·h−1). These findings provide valuable insights rational design high-performance chemical conversion.

Язык: Английский

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Reaction-Induced Reconstruction and Redispersion of Ni@C Catalyst for Enhancing Hmf Electrooxidation

Опубликована: Янв. 1, 2025

Язык: Английский

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Molybdenum Modulated the Hierarchical Morphology and Promoted the Pre-catalyst Rapid Reconstruction Leading to Mo-doped Cu-Ni Based Trimetallic Electrocatalyst for efficient HMF Upgrading

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179863 - 179863

Опубликована: Март 1, 2025

Язык: Английский

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