Leveraging Dual‐Atom Catalysts for Electrocatalysis Revitalization: Exploring the Structure‐Performance Correlation

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(18)

Published: Feb. 27, 2024

Abstract In light of the profound shift toward renewable fuels, dual‐atom catalysts (DACs) are impressively prospected as auspicious for electrocatalysis revitalization, accomplishing environmental remediation and sustainable global energy security. Leveraging appealing attributes such inspiring synergistic effect, additional adjacent adsorption sites, ultrahigh atom utilization, DACs endowed with unprecedented stability, activity, selectivity in multifarious energy‐related applications. By virtue addressing time technological prominence to review this ground‐breaking atomic electrocatalyst, first encompasses a correlation elucidation between substrate, dual‐atoms, facile synthetic approaches intriguing modification strategies. Furthermore, state‐of‐the‐art characterization techniques specially employed spotlighted, alongside rigorously unveiling novel mechanistic insights’ milestone gained from both theoretical modeling experimental research multitudes environmentally benign electrocatalytic applications, including O 2 reduction, CO H evolution, N other fundamental reactions. As final note, presents brief conclusion highlighting current challenges outlining prospects frontier. Importantly, deciphers structure‐performance while excavating advancement DACs, thus is anticipated shed catalysis community on bolstering an intense evolution triggering sapient inspiration more robust next‐generation catalysts.

Language: Английский

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3D-Printed photocatalysts for revolutionizing catalytic conversion of solar to chemical energy

Progress in Materials Science, Journal Year: 2025, Volume and Issue: 151, P. 101427 - 101427

Published: Jan. 7, 2025

Language: Английский

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

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 1018 - 1026

Published: Jan. 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.

Language: Английский

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Self‐Supported Earth‐Abundant Carbon‐Based Substrates in Electrocatalysis Landscape: Unleashing the Potentials Toward Paving the Way for Water Splitting and Alcohol Oxidation

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(16)

Published: Dec. 31, 2023

Abstract In the vast realm of scientific inquiry, pursuit hydrogen fuel production through electrochemical water splitting offers a promising gateway to green energy generation, alleviating challenges posed by resource scarcity. However, conventional encounters hurdles like low efficiency and sluggish oxygen evolution reaction (OER), which prompt searchers seek for alternative oxidation process. Significant strides are made in electrocatalytic research employing polymeric binders, resulting commendable catalytic activity minimal electron migration resistance. Yet, pivotal breakthrough this rapidly evolving field lies innovative conception carbon‐based self‐supported electrocatalysts, heralding trajectory ahead. This review delves into essential electro‐activity parameters establish property‐activity nexus, emphasizing benefits electrodes. Noteworthy advancements demonstrated (HER), OER, overall (OWS), bifunctional HER alcohol (AOR), driven diverse range electrocatalysts. These include structure‐dependent materials such as metal oxides, hydroxides/oxyhydroxides, phosphides, sulfides, selenides, nitrides, carbides, each meticulously tailored with nuanced modifications that shape their distinctive attributes. also acknowledges its opportunities, providing guidance potential directions inspiring interdisciplinary collaboration among scientists.

Language: Английский

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Ag nanoparticle-mediated LSPR effect and electron transfer for enhanced oxidative degradation process of g-C3N5 nanoflowers

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128484 - 128484

Published: June 27, 2024

Language: Английский

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Synergistic redox reactions toward co‐production of H₂O₂ and value‐added chemicals: Dual‐functional photocatalysis to achieving sustainability

SusMat, Journal Year: 2024, Volume and Issue: 4(3)

Published: April 11, 2024

Abstract Integrating H 2 O evolution with oxidative organic synthesis in a semiconductor‐driven photoredox reaction is highly attractive since and high‐value chemicals can be concurrently produced using solar light as the only energy input. The dual‐functional photocatalytic approach, free from sacrificial agents, enables simultaneous production of chemicals. This strategy promises green sustainable minimal greenhouse gas emissions. In this review, we first elucidate fundamental principles cooperative integration selective oxidation utilization photoexcited electrons holes over semiconductor‐based photocatalysts. Afterwards, thorough review on recent advancements value‐added presented. Notably, in‐depth discussions insights into techniques for unravelling mechanisms are elucidated. Finally, critical challenges prospects thriving field comprehensively discussed. It envisioned that will serve pivotal guidance rational design such system, thereby further stimulating development economical environmentally benign production.

Language: Английский

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Synthesis of novel nanoflowers-like P, K co-doped graphitic carbon nitride for efficient H2O2 photoproduction

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 729 - 739

Published: Aug. 9, 2024

Language: Английский

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Engineering of Graphitic Carbon Nitride (g‐C₃N₄) Based Photocatalysts for Atmospheric Protection: Modification Strategies, Recent Progress, and Application Challenges

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: Aug. 18, 2024

Graphitic carbon nitride (g-C

Language: Английский

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Solvated Electrons Generated on the Surface of Na‐SPHI for Boosting Visible Light Photocatalytic Hydrogen Evolution with Ultra‐High AQE

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

Published: May 5, 2024

Enhancing the utilization of visible-light-active semiconductors with an excellent apparent quantum efficiency (AQE) remains a significant and challenging goal in realm photocatalytic water splitting. In this study, fully condensed sulfur-doped poly(heptazine imide) metalized Na (Na-SPHI) is synthesized by ionothermal method using eutectic NaCl/LiCl mixture as ionic solvent. Comprehensive characterizations obtained Na-SPHI reveal several advantageous features, including heightened light absorption, facilitated exciton dissociation, expedited charge transfer. More importantly, solvated electron, powerful reducing agents, can be generated on surface upon irradiation visible light. Benefiting from above advantage, exhibits H

Language: Английский

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Coral Reef-like CdS/g-C3N5 Heterojunction with Enhanced CO2 Adsorption for Efficient Photocatalytic CO2 Reduction

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 94 - 94

Published: Jan. 20, 2025

As a promising member of the carbon nitride family, nitrogen-rich g-C3N5 has attracted significant attention because its excellent light absorption performance. Nevertheless, practical application in photocatalytic CO2 reduction is hindered by severe photogenerated charge recombination and limited adsorption capacity. Constructing heterojunction emerged as an effective strategy to mitigate recombination, thereby enhancing performance catalyst. Herein, series CdS/g-C3N5-X catalysts were prepared via situ hydrothermal approach. The obtained exhibited novel coral reef-like morphology which facilitated exposure additional active sites, activation CO2. Moreover, studies have shown that CdS can be anchored surface through C-S bonds, forming built-in electric field at interface, accelerated separation transfer charges. Consequently, resulting materials demonstrated high efficiency with H2O sacrificial agent. In particular, CdS/g-C3N5-0.2 maximum up 22.9 μmol·g−1·h−1, was 6 times 3 unmodified CdS, respectively. results indicated increased sites enhanced Cd/g-C3N5-0.2 catalyst primary reasons for improved This work provides heterojunction-based photocatalyst efficient reduction, offering insights into preparation high-performance photocatalysts sustainable energy applications.

Language: Английский

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