In the field of direct production of hydrogen from solar energy and water, photocatalytic methods hold great potential especially when metal-free molecular components are preferred. In this work, we have developed a new class of calix[4]arene-based molecular photosensitizers to be used as antenna systems in the photocatalytic production of hydrogen. The structure of the dyes has a typical donor-π-acceptor molecular architecture where a calix[4]arene scaffold is used as an embedded donor. The new materials have been fully characterized in their optical, electrochemical, and photocatalytic properties. The properties conferred by the calix[4]arene donor afforded twice larger performances compared to the corresponding linear system though showing similar quantitative optical properties. The new molecular design paves the way to a new strategy for photocatalytic hydrogen production where the calix[4]arene scaffold can afford more efficient systems and can offer the potential for host-guest supramolecular effects.

Manfredi, N., Decavoli, C., Boldrini, C., Dolla, T., Faroldi, F., Sansone, F., et al. (2021). Multibranched Calix[4]arene-Based Sensitizers for Efficient Photocatalytic Hydrogen Production. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2021(2), 284-288 [10.1002/ejoc.202001296].

Multibranched Calix[4]arene-Based Sensitizers for Efficient Photocatalytic Hydrogen Production

Manfredi N.
Primo
;
Decavoli C.
Secondo
;
Boldrini C. L.;Abbotto A.
Ultimo
2021

Abstract

In the field of direct production of hydrogen from solar energy and water, photocatalytic methods hold great potential especially when metal-free molecular components are preferred. In this work, we have developed a new class of calix[4]arene-based molecular photosensitizers to be used as antenna systems in the photocatalytic production of hydrogen. The structure of the dyes has a typical donor-π-acceptor molecular architecture where a calix[4]arene scaffold is used as an embedded donor. The new materials have been fully characterized in their optical, electrochemical, and photocatalytic properties. The properties conferred by the calix[4]arene donor afforded twice larger performances compared to the corresponding linear system though showing similar quantitative optical properties. The new molecular design paves the way to a new strategy for photocatalytic hydrogen production where the calix[4]arene scaffold can afford more efficient systems and can offer the potential for host-guest supramolecular effects.
Articolo in rivista - Articolo scientifico
Scientifica
Calixarenes; Dyes/Pigments; Hydrogen; Photocatalysis; Sensitizers;
English
Manfredi, N., Decavoli, C., Boldrini, C., Dolla, T., Faroldi, F., Sansone, F., et al. (2021). Multibranched Calix[4]arene-Based Sensitizers for Efficient Photocatalytic Hydrogen Production. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2021(2), 284-288 [10.1002/ejoc.202001296].
Manfredi, N; Decavoli, C; Boldrini, C; Dolla, T; Faroldi, F; Sansone, F; Montini, T; Baldini, L; Fornasiero, P; Abbotto, A
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/300525
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