Electrochemically controlled energy storage in a norbornadiene-based solar fuel with 99% reversibility

Journal article


Publication Details

Author(s): Waidhas F, Jevric M, Fromm L, Bertram M, Görling A, Moth-Poulsen K, Brummel O, Libuda J
Journal: Nano Energy
Publication year: 2019
Volume: 63
ISSN: 2211-2855


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.


FAU Authors / FAU Editors

Bertram, Manon
Waidhas, Fabian
Lehrstuhl für Katalytische Grenzflächenforschung
Brummel, Olaf Dr.
Lehrstuhl für Physikalische Chemie II
Fromm, Lukas
Lehrstuhl für Theoretische Chemie
Görling, Andreas Prof. Dr.
Lehrstuhl für Theoretische Chemie
Libuda, Jörg Prof. Dr.
Lehrstuhl für Katalytische Grenzflächenforschung
Lehrstuhl für Katalytische Grenzflächenforschung


External institutions with authors

Chalmers University of Technology / Chalmers tekniska högskola


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).

BibTeX: 

Last updated on 2019-24-07 at 22:08