Metal−support interaction in single-atom electrocatalysts: A perspective of metal oxide supports

eScience, Год журнала: 2024, Номер 4(5), С. 100269 - 100269

Опубликована: Апрель 15, 2024

The discovery of single-atom catalysts (SACs) represents a groundbreaking advancement in the field catalysis over past decades. With in-depth exploration relevant structure-activity relationships, metal-support interaction (MSI) is widely adopted to elucidate variations electronic structure and coordination configuration atomic active sites on various kinds supports. Herein, we briefly summarize metal oxide supports for SACs fabrication, including distinctive characteristics supports, enlightening advancements support-based (MO-SACs), feasible preparation methods MO-SACs effective regulation strategies MSI effect MO-SACs. In addition, present our viewpoints outlook this stimulate rational design construction novel applied diverse renewable energy devices, while some universal suggestions are sincerely given provoke thoughtful considerations during research process.

Язык: Английский

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Recent Advances and Challenges in Efficient Selective Photocatalytic CO₂ Methanation

Small, Год журнала: 2024, Номер 20(32)

Опубликована: Март 15, 2024

Abstract Solar‐driven carbon dioxide (CO 2 ) methanation holds significant research value in the context of emission reduction and energy crisis. However, this eight‐electron catalytic reaction presents substantial challenges activity selectivity. In regard, researchers have conducted extensive exploration achieved developments. This review provides an overview recent advances efficient selective photocatalytic CO methanation. It begins by discussing fundamental principles detail, analyzing strategies for improving efficiency conversion to CH 4 comprehensively. Subsequently, it outlines applications advanced characterization methods Finally, highlights prospects opportunities area, aiming inspire into high‐value shed light on mechanisms.

Язык: Английский

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An unlocked core–shell Cu2O/NiCu-MOF ternary heterojunction on g-C3N4 enables highly efficient photocatalytic reduction of CO2 under visible light

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152435 - 152435

Опубликована: Май 21, 2024

Язык: Английский

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Atomically Dispersed Cu on In₂O₃ for Relay Electrocatalytic Conversion of Nitrate and CO₂ to Urea

ACS Nano, Год журнала: 2024, Номер 18(36), С. 25316 - 25324

Опубликована: Авг. 26, 2024

Urea electrosynthesis from coelectrolysis of NO

Язык: Английский

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Poly(triazine imide) Crystals for Efficient CO₂ Photoreduction: Surface Pyridine Nitrogen Dominates the Performance

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 1018 - 1026

Опубликована: Янв. 2, 2025

Polymeric carbon nitrides (PCNs), usually the melon phase, have been extensively applied as photocatalysts for CO2 reduction; however, their performance is still unsatisfactory. The condensed allotrope, namely, poly(triazine imide) (PTI) with extended conjugation and a crystallized structure, indeed holds more favorable compositional structural advantages photocatalytic reduction but remains to be fully exploited. Herein, hexagonal prism-shaped PTI crystals were synthesized developed high-performance photocatalyst reduction. With Co(bpy)32+ cocatalyst, exhibit CO evolution rate of 44 μmol h–1 (i.e., 1467 g–1 h–1) 93% selectivity, markedly superior that counterpart. Moreover, manifest an apparent quantum efficiency 12.9% at 365 nm, representing state-of-the-art value by PCN CO2-to-CO without using noble metals. surface pyridine N species are exposed active sites dominate activation conversion, which, together high crystallinity facilitate charge separation transport, endows efficiency. In situ diffuse reflectance infrared Fourier transform spectroscopy determines key intermediates during reaction and, consequently, constructs possible mechanism.

Язык: Английский

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Engineering NH₂‐Cu‐NH₂ Triple‐atom Sites in Defective MOFs for Selective Overall Photoreduction of CO₂ into CH₃COCH₃

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(18)

Опубликована: Март 11, 2024

Abstract Selective photoreduction of CO 2 to multicarbon products, is an important but challenging task, due high activation barriers and insufficient catalytic sites for C−C coupling. Herein, a defect engineering strategy incorporating copper into the connected nodes defective metal–organic framework UiO‐66‐NH selective overall photo‐reduction acetone. The Cu 2+ site in well‐modified CuN O units served as trapping capture electrons via efficient electron‐hole separation, forming active + reduction. Two NH groups unit adsorb cooperated with ion functionalize triple atom site, each interacting one molecule strengthen binding *CO intermediate site. deoxygenated attached interacted *CH 3 fixed at amino group form key CO*‐CH , which third reduction on another produce Our photocatalyst realizes C product acetone CH COCH evolution rate 70.9 μmol g cat −1 h selectivity up 97 % without any adducts, offering promising avenue designing triple‐atomic producing from photosynthesis water.

Язык: Английский

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Tailoring CuNi heteronuclear diatomic catalysts: Precision in structural design for exceptionally selective CO2 photoreduction to ethanol

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2024, Номер 59, С. 126 - 136

Опубликована: Апрель 1, 2024

Язык: Английский

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A floatable photocatalyst to synergistically promote CO₂ reduction and water oxidation by creating oriented charge separation across a tri-phase interface

Energy & Environmental Science, Год журнала: 2024, Номер 17(13), С. 4725 - 4734

Опубликована: Янв. 1, 2024

By coupling oriented charge separation with a tri-phase interface, optimal reaction conditions for the two half-reactions of artificial photosynthesis are created. Thus, efficiency is synergistically promoted.

Язык: Английский

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Supported Au single atoms and nanoparticles on MoS2 for highly selective CO2-to-CH3COOH photoreduction

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Сен. 7, 2024

Язык: Английский

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Atomically Dispersed Metal Catalysts for the Conversion of CO₂ into High‐Value C₂₊ Chemicals

Advanced Materials, Год журнала: 2024, Номер 36(37)

Опубликована: Май 19, 2024

Abstract The conversion of carbon dioxide (CO 2 ) into value‐added chemicals with two or more carbons (C 2+ is a promising strategy that cannot only mitigate anthropogenic CO emissions but also reduce the excessive dependence on fossil feedstocks. In recent years, atomically dispersed metal catalysts (ADCs), including single‐atom (SACs), dual‐atom (DACs), and single‐cluster (SCCs), emerged as attractive candidates for fixation reactions due to their unique properties, such maximum utilization active sites, tunable electronic structure, efficient elucidation catalytic mechanism, etc. This review provides an overview significant progress in synthesis characterization ADCs utilized photocatalytic, electrocatalytic, thermocatalytic toward high‐value C compounds. To provide insights designing chemical originating from , key factors influence activity selectivity are highlighted. Finally, relevant challenges opportunities discussed inspire new ideas generation ‐based products over ADCs.

Язык: Английский

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