Accelerating alcohol oxidation kinetics for electrochemical biomass upgrading via photoinduced active CuIII-O generation

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124418 - 124418

Published: July 17, 2024

Language: Английский

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Active Hydroxyl‐Mediated Preferential Cleavage of Carbon‐Carbon Bonds in Electrocatalytic Glycerol Oxidation

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Electrocatalytic glycerol oxidation reaction (GOR) to produce high-value formic acid (FA) is hindered by high formation potential of active species and sluggish C-C bond cleavage kinetics. Herein, Ni single-atom (NiSA) Co (CoSA) dual sites anchored on nitrogen-doped carbon nanotubes embedded with Ni0.1Co0.9 alloy (Ni0.1Co0.9@NiSACoSA-NCNTs) are constructed for electrochemical GOR. Remarkably, it can reach 10 mA cm-2 at a low 1.15 V versus the reversible hydrogen electrode (vs. RHE) realize formate selectivity 93.27 % even conversion 98.81 1.45 vs. RHE. The GOR mechanism pathway systematically elucidated via experimental analyses theoretical calculations. It revealed that hydroxyl (*OH) be produced during NiSA, CoSA, synergistically optimizes electronic structure CoSA sites, reducing energy barriers *OH-mediated bonds dehydrogenation C1 intermediates. This decreases number intermediates steps GOR-to-FA, thus increasing production efficiency. After coupling evolution in membrane assembly cell, 14.26 g 23.10 L H2 100 108 h.

Language: Английский

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Photocatalytic and Electrochemical Synthesis of Biofuel via Efficient Valorization of Biomass

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract The excessive use of fossil fuels has significantly increased environmental stress, driving the need for green, sustainable biofuel alternatives. Innovations in photocatalysis (PC), electrocatalysis (EC), and their synergistic approaches, like photothermal catalysis (PTC), photo‐enzymatic (PENC), photoelectrocatalysis (PEC), offer advanced methods biomass conversion into biofuels, surpassing traditional limitations. However, comprehensive research on these processes is still lacking. This review aims to systematically analyze recent progress catalytic strategies biomass‐to‐biofuel conversion. It first describes characteristics, types, properties biofuels. Then, it explores fundamental mechanisms PC, EC, combined technologies. chemical pathways involved conversion—such as transesterification, esterification, hydrogenation, decarboxylation, bond cleavage, cyclization—are examined. Efficient catalyst design specific reactions factors influencing efficiency rates are also discussed. Additionally, this paper assesses impact economic benefits green technology production, offering a valuable reference energy application. addresses challenges deployment production suggests future directions, aiming provide scientific guidance technical support development vital field. In summary, underscores importance continued innovation promote solutions.

Language: Английский

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Supporting Nano Catalysts for the Selective Hydrogenation of Biomass‐derived Compounds

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(20)

Published: May 18, 2024

Abstract The selective hydrogenation of biomass derivatives presents a promising pathway for the production high‐value chemicals and fuels, thereby reducing reliance on traditional petrochemical industries. Recent strides in catalyst nanostructure engineering, achieved through tailored support properties, have significantly enhanced performance upgrading. A comprehensive understanding upgrading reactions current advancement supported catalysts is crucial guiding future processes renewable biomass. This review aims to summarize development nanocatalysts US DOE′s platform compounds into valuable upgraded molecules. discussion includes an exploration reaction mechanisms conditions catalytic transfer (CTH) high‐pressure hydrogenation. By thoroughly examining tailoring supports, such as metal oxide porous materials, nano‐supported catalysts, we elucidate promoting role engineering endeavor seeks establish robust theoretical foundation fabrication highly efficient catalysts. Furthermore, proposes prospects field utilization address application bottlenecks industrial challenges associated with large‐scale

Language: Английский

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Active Hydroxyl‐Mediated Preferential Cleavage of Carbon‐Carbon Bonds in Electrocatalytic Glycerol Oxidation

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Abstract Electrocatalytic glycerol oxidation reaction (GOR) to produce high‐value formic acid (FA) is hindered by high formation potential of active species and sluggish C−C bond cleavage kinetics. Herein, Ni single‐atom (Ni SA ) Co (Co dual sites anchored on nitrogen‐doped carbon nanotubes embedded with 0.1 0.9 alloy @Ni ‐NCNTs) are constructed for electrochemical GOR. Remarkably, it can reach 10 mA cm −2 at a low 1.15 V versus the reversible hydrogen electrode (vs. RHE) realize formate selectivity 93.27 % even conversion 98.81 1.45 vs. RHE. The GOR mechanism pathway systematically elucidated via experimental analyses theoretical calculations. It revealed that hydroxyl (*OH) be produced during , synergistically optimizes electronic structure sites, reducing energy barriers *OH‐mediated bonds dehydrogenation C 1 intermediates. This decreases number intermediates steps GOR‐to‐FA, thus increasing production efficiency. After coupling evolution in membrane assembly cell, 14.26 g 23.10 L H 2 100 108 h.

Language: Английский

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Direct conversion of glucose into acetylfurans via C−C bond cleavage over Cs promoted Mo-based catalyst

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 578, P. 115009 - 115009

Published: March 11, 2025

Language: Английский

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Interfacial molybdate-enabled electric field deconfinement to passivate water oxidation for wide-potential biomass electrooxidation

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 691, P. 137390 - 137390

Published: March 20, 2025

Language: Английский

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Catalytic conversion of biomass waste to methane without external hydrogen source

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 71, P. 246 - 255

Published: April 1, 2025

Language: Английский

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Autogenetic Carbon Oxyanions Enable Interfacial OH⁻ Deconfinement for Reinforced Biomass Electrooxidation over Wide Potential Window

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 29, 2024

Abstract The preferential adsorption toward OH − on the anode most likely blocks accessibility of organic molecules and triggers competitive oxygen evolution reaction (OER), typically precipitating a narrow potential window. Here, an deconfinement strategy enabled by CO 3 2− self‐transformed from C 2 O 4 metallic nickel oxalate (NiC ) for efficient synthesis bioplastic monomer 2,5‐furanedicarboxylic acid (FDCA) with faradaic efficiency >95% via electrocatalytic 5‐hydroxymethylfurfural (HMF) oxidation (e‐HMFOR) at wider window 1.38–1.56 V RHE , outperforming state‐of‐the‐art Ni‐based electrocatalysts is presented. In situ, tests corroborate that construction NiOOH surface‐adsorbed (NiOOH‐CO NiC can be facilitated self‐liberating . ions serving as electric field engine effectively weaken coverage through electrostatic repulsion enhance HMF NiOOH‐CO surface, thereby heightening e‐HMFOR while inhibiting OER. Computational results further indicate hoists energy barrier intermediate conversion (O* → OOH*) to suppress OER but promotes kinetics. precise modulation behavior electrocatalyst offers powerful kit boosting oxidative upgrading process circumventing competing

Language: Английский

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Bioenergy and Value-Added Chemicals Derived Through Electrocatalytic Upgradation of Biomass: a Critical Review

BioEnergy Research, Journal Year: 2024, Volume and Issue: 17(4), P. 2029 - 2049

Published: Aug. 16, 2024

Language: Английский

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