Electrochemically controlled energy storage in a norbornadiene-based solar fuel with 99% reversibility
Waidhas F, Jevric M, Fromm L, Bertram M, Görling A, Moth-Poulsen K, Brummel O, Libuda J (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 63
Article Number: 103872
DOI: 10.1016/j.nanoen.2019.103872
Abstract
Solar fuels based on molecular photoswitches hold the potential to combine solar energy conversion, storage, and release in an extremely simple one-photon one-molecule process. In this work we demonstrate electrochemically controlled solar energy storage and release with high reversibility in a tailor-made norbornadiene photoswitch. We investigated the photochemical conversion of the energy-lean 2-cyano-3-(3,4-dimethoxyphenyl)-norbornadiene (NBD’) to its energy-rich counterpart 2-cyano-3-(3,4-dimethoxyphenyl)-quadricyclane (QC’) and the electrochemically triggered reconversion. Characteristic bands of NBD’ and QC’ were identified by density functional theory (DFT) and monitored in-situ during the energy storage and release process by photoelectrochemical infrared reflection absorption spectroscopy (PEC-IRRAS). We identified the stable regions of both isomers at a Pt(111) electrode and tested the stability of the NBD’/QC’ couple over 1000 storage and release cycles. It is shown that reversibilities of more than 99% per cycle can be achieved in this electrochemically triggered energy storage system.
Authors with CRIS profile
Fabian Waidhas
Lehrstuhl für Katalytische Grenzflächenforschung
Lukas Fromm
Lehrstuhl für Theoretische Chemie
Manon Bertram
Lehrstuhl für Katalytische Grenzflächenforschung
Andreas Görling
Lehrstuhl für Theoretische Chemie
Olaf Brummel
Lehrstuhl für Physikalische Chemie II
Jörg Libuda
Lehrstuhl für Katalytische Grenzflächenforschung
Involved external institutions
Sweden (SE)How to cite
APA:
Waidhas, F., Jevric, M., Fromm, L., Bertram, M., Görling, A., Moth-Poulsen, K.,... Libuda, J. (2019). Electrochemically controlled energy storage in a norbornadiene-based solar fuel with 99% reversibility. Nano Energy, 63. https://dx.doi.org/10.1016/j.nanoen.2019.103872
MLA:
Waidhas, Fabian, et al. "Electrochemically controlled energy storage in a norbornadiene-based solar fuel with 99% reversibility." Nano Energy 63 (2019).
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