Construction of Frustrated Lewis Pairs in Poly(heptazine Imide) Nanosheets via Hydrogen Bonds for Boosting CO₂ Photoreduction

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(36)

Published: June 7, 2024

The creation of frustrated Lewis pairs on catalyst surface is an effective strategy for tuning CO

Language: Английский

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Atmosphere Engineering of Metal-Free Te/C3N4 p-n Heterojunction for Nearly 100% Photocatalytic Converting CO2 to CO

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: unknown, P. 100243 - 100243

Published: Sept. 1, 2024

Language: Английский

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Advances in Defect Engineering of Metal Oxides for Photocatalytic CO₂ Reduction

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

Published: April 30, 2024

Abstract Photocatalytic CO 2 reduction technology, capable of converting low‐density solar energy into high‐density chemical energy, stands as a promising approach to alleviate the crisis and achieve carbon neutrality. Semiconductor metal oxides, characterized by their abundant reserves, good stability, easily tunable structures, have found extensive applications in field photocatalysis. However, wide bandgap inherent oxides contributes poor efficiency photocatalytic reduction. Defect engineering presents an effective strategy address these challenges. This paper reviews research progress defect enhance performance summarizing classifications, preparation methods, characterization techniques. The focus is on engineering, represented vacancies doping, for improving oxide photocatalysts. includes advancements expanding photoresponse range, enhancing photogenerated charge separation, promoting molecule activation. Finally, provides summary current issues challenges faced along with prospective outlook future development technology.

Language: Английский

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

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

Published: Jan. 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.

Language: Английский

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Mofs-based S-scheme heterojunction photocatalysts: Challenges and prospects to break the selectivity limitation for intensified C1 products in CO2 photoreduction

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160238 - 160238

Published: Feb. 1, 2025

Language: Английский

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Unlocking solar energy: Photocatalysts design for tuning the CO2 conversion into high-value (C2+) solar fuels

EnergyChem, Journal Year: 2024, Volume and Issue: 6(5), P. 100130 - 100130

Published: July 16, 2024

Language: Английский

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Enhanced Local CO Coverage on Cu Quantum Dots for Boosting Electrocatalytic CO₂ Reduction to Ethylene

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract Ethylene (C 2 H 4 ) electrosynthesis from the electrocatalytic CO reduction process holds enormous potential applications in industrial production. However, sluggish kinetics of C─C coupling often result low yield and poor selectivity for C Herein, performance Cu catalysts varying sizes is investigated, prepared via a cryo‐mediated liquid phase exfoliation technique, electrochemical to . The activity gradually increase as size decreases tens nanometers few nanometers. Impressively, 5 nm quantum dots (Cu‐5) achieve maximum Faradaic efficiency (FE) 81.5% half‐cell cathodic energy (CEE) 42.2% with large partial current density 1.1 A cm −2 at −0.93 V versus reversible hydrogen electrode. Structural characterization situ spectroscopic analysis reveal that Cu‐5 dots, dominated by (100) facet, provide an abundance active sites enhance adsorption activation, promoting formation *CO intermediates. accumulation intermediates on facilitates CO‐CHO reaction, thus enhancing production rate.

Language: Английский

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Nanomaterial-based energy conversion and energy storage devices: a comprehensive review

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(19), P. 8933 - 8962

Published: Jan. 1, 2024

Nanostructured materials are widely researched for energy applications like solar cells, catalysts, batteries, and graphene-based due to their high surface area, favorable transport properties, tunable physical attributes, confinement effects at the nanoscale.

Language: Английский

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Halloysite-kojic acid conjugate: A sustainable material for the photocatalytic CO2 reduction and fixation for cyclic carbonates production

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 85, P. 102865 - 102865

Published: July 1, 2024

This study introduces a straightforward synthesis method for producing hybrid material composed of halloysite and kojic acid, which catalyzes carbon dioxide (CO2) conversion processes. Kojic derived from malted rice fermentation, exhibits inherent chelating properties that facilitate the introduction copper ions onto material's surface. Copper ions, an economically viable alternative to noble metals, catalyze CO2 reactions effectively. The catalyst was evaluated two distinct pathways: photocatalytic methane production under simulated sunlight fixation into cyclic carbonates via epoxide reactions. demonstrates remarkable catalytic activity mild conditions, achieving high efficiencies at 45 °C 70 carbonate atmospheric pressure. Conversion 31 % 89 were achieved reduction fixation, respectively. FT-IR spectra confirmed functionalization material. Additionally, its organic/inorganic nature is complemented by excellent thermal stability, as studied TGA. It enables repeated utilization, maintaining 25 after fourth reuse. research highlights potential using naturally materials sustainable mitigation.

Language: Английский

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Recent progress on photocatalytic reduction of CO₂ to C₂₊ products

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(33), P. 21677 - 21703

Published: Jan. 1, 2024

This review examines recent research advances for photocatalytic reduction of CO 2 to C 2+ products and predicts possible future directions further improve the selectivity multi-carbon species.

Language: Английский

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