Atomically Dispersed Cu Active Centers: Local Structure and Mechanism Modulation for Carbon Dioxide Reduction

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Reducing carbon dioxide （CO 2 ）to high‐value products using green renewable energy is a promising approach for addressing and greenhouse effect issues. Consequently, electrocatalytic CO reduction reaction (CO RR) technology has become current research hotspot. Since the discovery of high activity selectivity copper in RR, atomically dispersed Cu catalysts have garnered widespread attention due to their efficient atom utilization, unique electronic structure, outstanding catalytic performance. However, great challenge remains providing rational catalyst design principles achieve regulation product distribution. A clear understanding materials an in‐depth interpretation mechanism as well elucidation strategy progress toward different are keys building solving above problem. Therefore, this review starts with introduction advanced characterization techniques reveal structure mechanisms. Then, various optimization strategies applications producing targeted summarized discussed. Finally, perspectives on RR field future development offered.

Язык: Английский

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Construction of NiAl-LDH/BiOBr type-II heterojunction to drive efficient CO2 photoreduction under visible light

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131696 - 131696

Опубликована: Янв. 1, 2025

Язык: Английский

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Metal–organic framework derived micro-/nano-materials: precise synthesis and clean energy applications

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(19), С. 6275 - 6306

Опубликована: Янв. 1, 2024

We summarize the different synthetic strategies of MOF-derived micro-/nano-materials to date, including but not limited calcining, phosphating, sulfurization, selenylation method, ion exchange, and etching strategies.

Язык: Английский

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Modification strategies of TiO2-based nanocatalysts for CO2 reduction through photocatalysis: A mini review

Applied Catalysis A General, Год журнала: 2024, Номер unknown, С. 120054 - 120054

Опубликована: Дек. 1, 2024

Язык: Английский

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Molecularly Imprinted Nanozymes with Substrate Specificity: Current Strategies and Future Direction

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 10, 2024

Abstract Molecular imprinting technology (MIT) stands out for its exceptional simplicity and customization capabilities has been widely employed in creating artificial antibodies that can precisely recognize efficiently capture target molecules. Concurrently, nanozymes have emerged as promising enzyme mimics the biomedical field, characterized by their remarkable stability, ease of production scalability, robust catalytic activity, high tunability. Drawing inspiration from natural enzymes, molecularly imprinted combine unique benefits both MIT nanozymes, thereby conferring biomimetic catalysts with substrate specificity selectivity. In this review, latest strategies fabrication focusing on use organic polymers inorganic nanomaterials are explored. Additionally, cutting‐edge techniques generating atom‐layer‐imprinted islands ultra‐thin atomic‐scale thickness is summarized. Their applications particularly noteworthy fields catalyst optimization, detection techniques, therapeutic strategies, where they boost reaction selectivity efficiency, enable precise identification quantification substances, enhance effectiveness while minimizing adverse effects. Lastly, prevailing challenges field delineate potential avenues future progress encapsulated. This review will foster advancements expand applications.

Язык: Английский

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Design and Synthesis of Phthalocyanine-Sensitized Titanium Dioxide Photocatalysts: A Dual-Pathway Study

Materials, Год журнала: 2025, Номер 18(1), С. 202 - 202

Опубликована: Янв. 5, 2025

Phthalocyanine-sensitized TiO2 significantly enhances photocatalytic performance, but the method of phthalocyanine immobilization also plays a crucial role in its performance. In order to investigate effect binding strategy and on dual-pathway study has been conducted. On one hand, zinc-tetra (N-carbonylacrylic) aminephthalocyanine (Pc) was directly grafted onto surface Fe3O4@SiO2@TiO2 (FST). other Pc immobilized silane coupling agent ((3-aminopropyl) triethoxysilane) FST. Through experiments two types composite materials synthesized, results showed that photocatalyst obtained by sensitizing (FSTP) exhibited better performance rhodamine B(RhB) removal than did using (FSTAP). Further mechanistic studies sensitized FSTP more efficient photogenerated electron–hole pair separation, whereas FSTAP linked created an additional transport distance might greatly affect electron transport. Therefore, research this work provides new guidance for efficiently constructing phthalocyanine-sensitized photocatalysts.

Язык: Английский

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Interfacial Assembly Immobilization of Tripodal Iron Terpyridyl Coordination Oligomers on Carbon Nitride for Efficient Photocatalytic CO₂ Reduction

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Surface modification of cheap light-absorbing materials by noble-metal-free molecular catalysts to construct high efficiency photocatalytic systems has recently attracted great research interest but remains a challenge. Here, we constructed carbon nitride-based composite photocatalysts through interfacial covalently assembling tripodal Fe(II)-terpyridyl (Fe-TerPyTa)n coordination oligomers on oxidized graphitic nitride (O-C3N4) via surface-initiated alternative reaction between TerPyTa and Fe(BF4)2. The obtained O-C3N4@(Fe-TerPyTa)n possesses visible-light-absorbing C3N4 active Fe-TerPyTa with superior capability in CO2 reduction. Due the well-defined structure integrated functionality, O-C3N4@(Fe-TerPyTa)1 hybrid catalyst displays significantly enhanced catalytic performance reduction outstanding CO selectivity (almost 100%) maximum evolution rate 91.1 μmol g-1 h-1, which is nearly 100-fold higher than that pristine O-C3N4. fluorescence emission, time-resolved fluorescence, electrochemical impedance spectrum studies indicate improved mainly attributed direct covalent coordinative interactions oligomer Such configuration can enhance charge transfer from O-C3N4 redox center Fe-TerPyTa, further passes electrons molecules produce CO. Moreover, due kinetical preference for reduce H2O-to-H2, reducing products be regulated pure its CO/H2 mixture (analogue syngas) tunable ratios changing water content solution.

Язык: Английский

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A Self‐Adaptive Quantum Dots/BaTiO₃ Junction Together with Giant Charge Separation‐Driving Force for CO₂ Photoreduction via Ferroelectric Polarization Engineering

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Quantum dots (QDs) with multiple exciton generation are identified as one of the most competitive candidates for highly efficient solar‐to‐chemical energy conversion, yet not well recognized in excellent CO 2 photoreduction activity due to agglomeration and effect. Here, taking Zn 0.5 Cd S QDs (ZCS QDs) an example, ferroelectric BaTiO 3 (BTO) high‐energy state polarization charges is introduced dynamically tune properties interfacial charges, achieving self‐adaptive electrostatic adsorption intensive photogenerated charge separation. Meanwhile, synergy Z‐scheme ZCS QDs/BTO heterojunction, carrier recombination further inhibited. Such a subtle modulation exhibits exceptional improvement photoreduction, reaching yields that 15.06 times 2.13 those pure BTO QDs, respectively. Notably, there remarkable 8.67 increase yield external polarization. The validity modulating strategy boosting demonstrated using double‐layer capacitance ( C dl ) situ Fourier transform infrared spectroscopy. This study shows great promise materials photoreduction.

Язык: Английский

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Switching CO2 Reduction Selectivity in Cu-TiO2 Catalysts: Role of Cu+ Site Location and Oxygen Vacancy Concentration

Environmental Research, Год журнала: 2025, Номер unknown, С. 121501 - 121501

Опубликована: Март 1, 2025

Язык: Английский

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Highly Dispersed Nickel Oxide Nanoparticles Anchored on a Tubular Biochar Framework for Selective Photocatalytic CO₂ Reduction to CH₄

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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