Recent Advances and Challenges in Efficient Selective Photocatalytic CO₂ Methanation

Small, Journal Year: 2024, Volume and Issue: 20(32)

Published: March 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.

Language: Английский

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Strong Interaction over Ru/Defects‐Rich Aluminium Oxide Boosts Photothermal CO₂ Methanation via Microchannel Flow‐Type System

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(31)

Published: July 5, 2022

Abstract The CO 2 methanation is an important component of the “power to gas” strategy, and Ru‐Al O 3 catalyst considered be a state‐of‐the‐art for this reaction. Conventional prepared by wet impregnation. Due weak interactions between Ru Al , construction controllable interface metal substrate still challenging. In work, UV pulse laser used controllably construct ultra‐small nanoparticles on defects‐rich 3‐x ‐L in situ grown foil (Ru‐Al ‐L) effective photothermal methanation. catkin‐like fluff efficiently traps light ensure adsorption ‐L. defects anchors Ru. A Strong‐Metal‐Support‐Interaction (SMSI) effect constructed exhibits remarkable catalytic performance (CH 4 yield 12.35 mol g −1 h ) closed batch system. Then innovative flow reactor established based one‐piece microchannel catalyst. Thanks local pressure edge microchannels, CH further enhanced 14.04 . Finally, outdoor setup demonstrates feasibility 18.00 mmol min ). This work provides novel perspectives multi‐level micro/nanostructures integrated catalysts

Language: Английский

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Z‐scheme Heterojunction Photocatalyst Based on Lanthanum Single‐Atom Anchored on Black Phosphorus for Regulating Surface Active Sites, therefore Enhancing Photocatalytic CO₂ Reduction with ≈100% CO Selectivity

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(41)

Published: Aug. 7, 2022

Abstract The advent of Z‐scheme heterojunction makes it possible to improve the CO 2 photoreduction efficiency photocatalyst significantly. However, reasonable construction and study photocatalytic mechanism remains a major challenge. Here, (BP:La/InVO 4 :La) based on La single atom anchored black phosphorus for reduction with ≈100% selectivity is successfully constructed. generation rate BP:La/5‐InVO :La ≈7.9 4.9 times higher than InVO , respectively. results X‐ray photoelectron spectroscopy, photoluminescence, density functional theory indicate that BP:La/InVO belongs heterojunction, plays multiple roles such as regulating surface active sites, promoting absorption, increasing O defects, which can further contribute improvement performance. enhanced demonstrated by calculating rate‐determining steps selectivity‐determining steps. are expected provide unique ideas rational design rare earth composite photocatalyst.

Language: Английский

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Rational fabrication of cadmium-sulfide/graphitic-carbon-nitride/hematite photocatalyst with type II and Z-scheme tandem heterojunctions to promote photocatalytic carbon dioxide reduction

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 628, P. 129 - 140

Published: Aug. 13, 2022

Language: Английский

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Photocatalytic Conversion of Methane: Current State of the Art, Challenges, and Future Perspectives

ACS Environmental Au, Journal Year: 2023, Volume and Issue: 3(5), P. 252 - 276

Published: June 20, 2023

With 28-34 times the greenhouse effect of CO

Language: Английский

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