Selective Electrocatalytic Conversion of Nitric Oxide to High Value‐Added Chemicals

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(18)

Published: Jan. 25, 2024

The artificial disturbance in the nitrogen cycle has necessitated an urgent need for nitric oxide (NO) removal. Electrochemical technologies NO conversion have gained increasing attention recent years. This comprehensive review presents advancements selective electrocatalytic of to high value-added chemicals, with specific emphasis on catalyst design, electrolyte composition, mass diffusion, and adsorption energies key intermediate species. Furthermore, explores synergistic electrochemical co-electrolysis carbon source molecules, enabling synthesis a range valuable chemicals C─N bonds. It also provides in-depth insights into intricate reaction pathways underlying mechanisms, offering perspectives challenges prospects electrolysis. By advancing comprehension fostering awareness balance, this contributes development efficient sustainable systems from NO.

Language: Английский

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Modulating charge oriented accumulation via interfacial chemical-bond on In2O3/Bi2MoO6 heterostructures for photocatalytic nitrogen fixation

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 664, P. 33 - 44

Published: March 4, 2024

Language: Английский

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Surface Functionalization and Defect Construction of SnO₂ with Amine Group for Enhanced Visible‐Light‐Driven Photocatalytic CO₂ Reduction

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(14)

Published: Feb. 5, 2024

Abstract Photocatalytic CO 2 reduction to hydrocarbon fuels through solar energy provides a feasible channel for reducing emission and resource depletion. Nevertheless, severe charge recombination high barrier limit the efficiency. Herein, surface amine‐functionalized SnO with oxygen vacancies (A‐Vo‐SnO ) is fabricated achieve visible‐light‐driven photocatalytic reduction. Specifically, amino groups modified onto of catalyst can provide more active sites promote adsorption . Meanwhile, synchronously induced defect level reduces band‐gap expands light‐absorption region from UV light visible light. The modulate electronic structure work as separation centers spatial charges, thus promoting interfacial transfer efficiency providing catalytic sites, evidenced by experimental observation theoretical calculation. As expected, this A‐Vo‐SnO exhibits CH 4 evolution rate 17.27 µmol g −1 h without adding sacrificial agent co‐catalyst, much higher than 5.98 pure This significant inspiration design engineering based on photocatalysts towards conversion.

Language: Английский

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Recent progress of MOF-based photocatalysts for environmental application and sustainability considerations

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 208, P. 391 - 435

Published: June 28, 2024

Language: Английский

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Porous Composite‐Mediated Bimetallic Cluster POMs/Zr‐MOF for Catalytic Transfer Hydrogenation of Biomass‐Derived Aldehydes and Ketones

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(19)

Published: Jan. 8, 2024

Abstract Synergistic catalytic effects and metal node modulation are pivotal to the performance of multifunctional catalysts.We present a versatile strategy for constructing bimetallic M 1 2 cluster catalysts (polyoxometalates (POMs)/Zr‐based metal‐organic frameworks (Zr‐MOF); = Zr; W, V, Mo) by microwave‐assisted in‐situ precoordination‐postmodification approach, which consisted grafting POM single clusters onto Zr–O hierarchical porous composites (defective Zr‐MOF (HUiO‐66 x )) nodes in Zr‐MOF. Hierarchical porosity double active centers POMs/Zr‐MOF result greater accessibility sites adjustable acid–base properties, thus providing opportunities transfer hydrogenation biomass‐derived aldehydes/ketones. The synergistic couple (W 6+ –O 2− –Zr 4+ ) not only bridge hydrogen donors into reaction system but also promote dissociation α ‐C(sp 3 )‐H from isopropanol subsequent activated carbonyl furfural. Enhanced substrate adsorption decreased activation barrier rate‐determining step keys direct compounds near‐quantitative corresponding alcohols via an eight‐membered‐ring transition state achieving unprecedented low‐temperature over Zr–W clusters. proposed general method reveals roles accessible toward specific catalysis.

Language: Английский

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Reinforced Hole Trapping in S‐Scheme Photoharvesters for Markedly Enhanced Photocatalytic Hydrogen Evolution and Nitrogen Fixation

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

Published: March 7, 2025

Abstract The S‐scheme heterojunction exerts a profoundly positive influence on enhancing carrier separation efficiency and redox capability. However, there are few reports accelerating the reaction rate of photogenerated charge carriers, particularly consumption holes in heterojunction. Herein, an situ construction strategy is employed to construct ultra‐small nonprecious metal NiO (≈2 nm) By incorporating into heterojunctions, photocatalytic hydrogen production performance significantly improved by 380 times, nitrogen fixation enhanced 20 times. Density function theoretical (DFT) calculations, X‐ray photoelectron spectroscopy (in XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy DRIFTS) characterization results indicate that incorporation heterojunctions can not only enhance photo‐generated carriers ability but also further promote sacrificial agents, thereby achieving secondary enhancement efficiency. Therefore, (H 2 ) (N markedly improved. successful execution this work provides novel approach material structure design, offering valuable insights for development improvement high‐performance materials.

Language: Английский

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Efficient X-ray Detection of Polyoxometalates@Metal–Organic Frameworks Based on Host–Guest Electron Transfer

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(4), P. 1086 - 1093

Published: Feb. 23, 2024

Semiconductive metal–organic frameworks (MOFs) have attracted conspicuous interest in X-ray detection. The host–guest strategy has been proven to be an effective means improve the performance of MOF-based semiconductors. However, introducing a novel guest that combines carriers' regulating ability and absorption enhancement not explored. Herein, two polyoxometalates (POMs) with electron-rich element-heavy are introduced into MOFs architect structures applied for Two POMs@MOFs (1 2) both can convert photons recordable electrical signals. Detector 1 shows high photocurrent profiting from its stronger exciton dissociation dynamic, therefore exhibiting sensitivity 73.98 μC Gy–1 cm–2. With quality [PW12O403–], detector 2 ultrahigh absorption, resulting on/off ratio low detection limit. Moreover, electron transfer mechanism POMs Cu(II) is substantiated by using spectroscopy theoretical calculations.

Language: Английский

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“Ship-in-a-bottle” entrapment of biomolecules in MOF-based xerogel monoliths for high-performance electrochemical hydrogen evolution

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(13), P. 7622 - 7630

Published: Jan. 1, 2024

The “ship-in-a-bottle” entrapment of bioactive molecules in metal–organic framework (MOF)-based xerogel monoliths based on a controlled mesopore architecture was reported.

Language: Английский

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Enhanced photocatalytic U(VI) reduction via double internal electric field in CoWO4/covalent organic frameworks p-n heterojunction

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 475, P. 134869 - 134869

Published: June 9, 2024

Language: Английский

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2,5-Thiophenedicarboxylic Acid Bridging Hexameric Ce^III-Substituted Selenotungstate and Its Application for Detecting Mucin 1

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(17), P. 7858 - 7868

Published: April 18, 2024

The development of polyoxometalate chemistry not only is derived from the continuous discovery novel polyoxometalates (POMs) but also stems exploitation their new functionalities. In this work, we obtained a rigid sulfur-containing heterocyclic ligand-linking aggregate [N(CH

Language: Английский

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