p–d Orbitals Coupling Heterosites of Ni₂P/NiFe‐LDH Interface Enable O─H Cleavage for Water Splitting

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: Aug. 11, 2024

Abstract Electrocatalytic water splitting for hydrogen production still faces a bottleneck due to sluggish reactive kinetics and high energy barriers. Herein, p–d orbital coupling P–Fe heterosites are constructed at Ni 2 P–FeNi‐LDH interfaces enhance the O─H bond cleavage of reaction intermediates H O* OH* oxygen evolution (OER) (HER), respectively. The P/NiFe‐LDH heterostructure shows superior HER OER activities alkaline with overpotentials 230 270 mV 100 mA cm −2 , respectively, even exhibits activity electrocatalytic seawater splitting. interaction P 2p Fe 3d orbitals upshifts d‐band center downshifts p‐band P. This finding not only facilitates dissociation bonds in O promotes Volmer–Heyrovsky step HER, but also reduces barrier rate‐determining from transition. work proposes new approach constructing heterojunctions facilitate reduce electrocatalysis.

Language: Английский

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Enhanced and Selective Photocatalytic Reduction of CO2 to CH4 Using a Pt-Loaded CuPc/g-C3N4 Z-Scheme Heterojunction Catalyst

Green Energy & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Mediating Zn loading on Cu-Zn bimetallic catalyst for electrochemical CO2 reduction into tunable syngas

Fuel, Journal Year: 2025, Volume and Issue: 392, P. 134821 - 134821

Published: Feb. 26, 2025

Language: Английский

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Cu–Bi Bimetallic Catalysts Derived from Metal–Organic Framework Arrays on Copper Foam for Efficient Glycine Electrosynthesis

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Abstract Glycine as one of the most abundant amino acids in human proteins, with extensive applications both life and industry, is conventionally synthesized through complex procedures or toxic feedstocks. In this study, we present a facile benign electrochemical pathway for synthesis glycine reductive coupling glyoxylic acid nitrate over copper‐bismuth bimetal catalyst derived from metal–organic framework (MOF) array on copper foam (Cu/Bi−C@CF). Remarkably, Cu/Bi−C@CF achieves fantastic selectivity 89 %, corresponding high Faraday efficiency 65.9 %. From control experiments, introduction Bi caused binding energy Cu shift to lower state, which leads towards formation key intermediate hydroxylamine rather than ammonia product, facilitating oxime providing additional sites subsequent hydrogenation reaction way glycine. Moreover, derivation MOF arrays ensures effective dispersion enhances stability Cu/Bi−C@CF. This innovative approach not only presents sustainable pathways production value‐added organonitrogen compounds utilizing readily available carbon nitrogen sources, but also provides novel insights into design multistage structural catalysts sequential reactions.

Language: Английский

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A Review on Bi₂WO₆‐Based Materials for Photocatalytic CO₂ Reduction

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 6, 2024

Abstract Photocatalytic reduction of CO 2 (PCR) technology offers the capacity to transmute solar energy into chemical through an eco‐friendly and efficacious process, concurrently facilitating storage carbon diminution, this innovation harbors significant potential for mitigating shortages ameliorating environmental degradation. Bismuth tungstate (Bi WO 6 ) is distinguished by its robust visible light absorption distinctive perovskite‐type crystal architecture, rendering it highly efficiency in PCR. In recent years, numerous systematic strategies have been investigated synthesis modification Bi enhance photocatalytic performance, aiming achieve superior applications. This review provides a comprehensive latest research progress on based materials field photocatalysis. Firstly, outlining fundamental principles, associated reaction mechanisms pathways Then, strategy ‐based introduced regulation properties. Furthermore, accentuating extant applications reduction, including metal‐Bi , semiconductor‐Bi carbon‐based composites etc. while concludes with examination future landscape challenges faced. hopes serve as effective reference continuous improvement implementation photocatalysts

Language: Английский

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Engineering the S-scheme heterojunction modulating the charge density of the central carbon atom of half-metallic carbon nitride for boosting CO2 photoreduction

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125200 - 125200

Published: Feb. 1, 2025

Language: Английский

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Achieving Current Density of 815 mA/cm² for Electrochemical CO₂ Reduction to Formate by Enhancing ⁎OCHO Intermediate Adsorption through Intercalated Bi Single Atoms in BiOBr

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125234 - 125234

Published: March 1, 2025

Language: Английский

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One Stone, Two Birds Strategy for Synthesized Metallic Bi-Doped ZnWO₄-Enriched Oxygen Defection for Enhancing Marine Bacterial Inactivation

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Deactivating the concentration of marine microorganisms is suitable and proper for ballast water treatment. In here, a promising strategy has been presented to create massive oxygen vacancies synergistic with metallic Bi nanoparticles on ZnWO4 inactivating bacteria in seawater, demonstrating that paramount incorporation 2BZWO (Bi/ZnWO4) samples exhibits superior photocatalytic sterilization, which sterilization efficiency 2.83 times pure ZnWO4. The co-incorporation significantly enhanced absorption visible light enrichment photogenerated electrons, promoting separation charge carriers. Moreover, first-principles calculations demonstrate coeffect guided reconfiguration active sites electrons flowing direction. Results from this study provide creative controllable Bi/ZnWO4 synthesis manipulate inactivation bacteria.

Language: Английский

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Electrochemical Lattice Engineering of Bismuthene for Selective Glycine Synthesis

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

Published: April 3, 2025

Glycine plays a crucial role in various industrial and daily applications. However, traditional synthesis methods are often associated with high toxicity, energy intensity, inefficiency. This study introduces an efficient eco-friendly method for synthesizing glycine via the reductive coupling of oxalic acid nitrate using Bi metal catalyst, enhanced by lattice strain from oxide composites undergoing electrochemical transformation. At applied potential -0.76 V versus reversible hydrogen electrode (RHE), catalyst achieves impressive Faradaic efficiency (FE) 79.1%, yielding record concentration 0.17 m, substantially higher than conventional Bi-based systems. Furthermore, introduction glycolaldehyde hydroxylamine as reactants raise FE to 91.3% production rate 2433.3 µmol h-1 under identical conditions. Electrochemical analysis theoretical calculations demonstrate that expansion notably boosts facilitating NH2OH formation promoting reduction oxime intermediates. These results underscore significance engineering enhancing active site performance accelerating reaction kinetics, offering sustainable alternative methods.

Language: Английский

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Enhanced Active Sites and Optimized Reaction Intermediate Configuration in PbBiO2Br Photocatalyst for Boosting Photocatalytic CO2 Reduction

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125396 - 125396

Published: April 1, 2025

Language: Английский

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