Unleashing the Potential of Organic Semiconductor Nanoparticles towards CO2 Photoreduction

Le résumé fourni par la source

Unleashing the Potential of Organic Semiconductor Nanoparticles towards CO2 PhotoreductionMariia Ferree a, Jan Kosco a, Catherine De Castro a, Nisreen Alshehri a, Lingyun Zhao b, Iain McCulloch c, Martin Heeney a, Frédéric Laquai aa King Abdullah University of Science & Technology (KAUST), KAUST Solar Center (KSC), Physical Science and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom of Saudi Arabiab Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabiac Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TAProceedings of Catalyst Design Strategies for Photo- and Electrochemical Fuel Synthesis (ECAT23)Keele, United Kingdom, 2023 December 4th - 5thOrganizers: Charles Creissen, Qian Wang and Julien WarnanOral, Mariia Ferree, presentation 004DOI: https://doi.org/10.29363/nanoge.ecat.2023.004Publication date: 10th October 2023Organic semiconductors have come a long way in recent years and found application in OLEDs, organic photovoltaics, flexible electronics, and even photocatalysis. In this work, we showcase a proof-of-concept study of the previously reported [1,2] and newly designed organic semiconductor nanoparticles as visible-light active photocatalysts for selective carbon dioxide (CO2) conversion to solar fuels, specifically carbon monoxide (CO) and methane (CH4). Heterojunction nanoparticles with core-shell morphology are fabricated by combining different donor polymers with fullerene and non-fullerene small molecule acceptors. This water-processable catalytic system demonstrates photocatalytic CO2 reduction activity comparable to prototypical materials (e.g., TiO2 (P25), g-C3N4). We achieve CO production rate of 4.7 ± 1.2 mmol g-1 h-1 and CH4 production rate ranging from 3.6 to 4.2 mmol g-1 h-1 depending on the organic photocatalyst employed in the CO2 reduction reaction. Moreover, the integration of different metallic co-catalysts, such as silver or gold, onto the organic nanoparticles provides the necessary control over C1 reaction products while suppressing the competing process of H2 evolution. Additionally, we aim 1) to address the challenges and limitations of the proposed photocatalytic systems, which include but are not limited to the meticulous preparation process and particle fragility, as well as the need for careful optimisation of reaction conditions, 2) to shine some light on the photophysics behind CO2 photoconversion using advanced steady-state and time-resolved spectroscopy techniques, and 3) to discuss possible future steps towards a more educated nanoparticles' design which would improve photocatalyst performance and allow upscaling. References:[1] Kosco, J.; Bidwell, M.; Cha, H.; Martin, T.; Howells, C. T.; Sachs, M.; Anjum, D. H.; Gonzalez Lopez, S.; Zou, L. Y.; Wadsworth, A.; Zhang, W. M.; Zhang, L. S.; Tellam, J.; Sougrat, R.; Laquai, F.; DeLongchamp, D. M.; Durrant, J. R.; McCulloch, I. Enhanced photocatalytic hydrogen evolution from organic semiconductor heterojunction nanoparticles. Nat Mater 2020, 19 (5), 559-565.[2] Kosco, J.; Gonzalez-Carrero, S.; Howells, C. T.; Fei, T.; Dong, Y. F.; Sougrat, R.; Harrison, G. T.; Firdaus, Y.; Sheelamanthula, R.; Purushothaman, B.; Moruzzi, F.; Xu, W. D.; Zhao, L. Y.; Basu, A.; De Wolf, S.; Anthopoulos, T. D.; Durrant, J. R.; McCulloch, I. Generation of long-lived charges in organic semiconductor heterojunction nanoparticles for efficient photocatalytic hydrogen evolution. Nat Energy 2022, 7 (4), 340-351.© FUNDACIO DE LA COMUNITAT VALENCIANA SCITOnanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.MATSUSPreviously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.International Conference on Hybrid and Organic PhotovoltaicsInternational Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and OptoelectronicsThe main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and OptoelectronicsThe International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.