The conversion and efficient storage of solar energy is recognized to hold significant potential with regard to future energy solutions. Molecular solar-thermal batteries based on photochromic systems exemplify one possible technology able to harness and apply this potential. Herein is described the synthesis of a macrocycle based on a dimer of the dihydroazulene/vinylheptafulvene (DHA/VHF) photo/thermal couple. By taking advantage of conformational strain, this DHA-DHA macrocycle presents an improved ability to absorb and store incident light energy in chemical bonds (VHF-VHF). A stepwise energy release over two sequential ring-closure reactions (VHF → DHA) combines the advantages of an initially fast discharge, hypothetically addressing immediate energy consumption needs, followed by a slow process for consistent, long-term use. This exemplifies another step forward in the molecular engineering and design of functional organic materials towards solar-thermal energy storage and release.
Solar-Thermal Energy Storage in a Photochromic Macrocycle / Vlasceanu, Alexandru; Broman, Søren L.; Hansen, Anne S.; Skov, Anders B.; Cacciarini, Martina; Kadziola, Anders; Kjaergaard, Henrik G.; Mikkelsen, Kurt V.; Nielsen, Mogens Brøndsted. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - STAMPA. - (2016), pp. 10796-10800. [10.1002/chem.201602512]
Solar-Thermal Energy Storage in a Photochromic Macrocycle
CACCIARINI, MARTINA;
2016
Abstract
The conversion and efficient storage of solar energy is recognized to hold significant potential with regard to future energy solutions. Molecular solar-thermal batteries based on photochromic systems exemplify one possible technology able to harness and apply this potential. Herein is described the synthesis of a macrocycle based on a dimer of the dihydroazulene/vinylheptafulvene (DHA/VHF) photo/thermal couple. By taking advantage of conformational strain, this DHA-DHA macrocycle presents an improved ability to absorb and store incident light energy in chemical bonds (VHF-VHF). A stepwise energy release over two sequential ring-closure reactions (VHF → DHA) combines the advantages of an initially fast discharge, hypothetically addressing immediate energy consumption needs, followed by a slow process for consistent, long-term use. This exemplifies another step forward in the molecular engineering and design of functional organic materials towards solar-thermal energy storage and release.File | Dimensione | Formato | |
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