Photochemical Energy Storage and Electrochemically Triggered Energy Release in the Norbornadiene-Quadricyclane System: UV Photochemistry and IR Spectroelectrochemistry in a Combined Experiment

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Brummel O, Waidhas F, Bauer U, Wu Y, Bochmann S, Steinrück HP, Papp C, Bachmann J, Libuda J
Zeitschrift: Journal of Physical Chemistry Letters
Verlag: AMER CHEMICAL SOC
Jahr der Veröffentlichung: 2017
Band: 8
Heftnummer: 13
Seitenbereich: 2819-2825
ISSN: 1948-7185


Abstract


The two valence isomers norbornadiene (NBD) and quadricyclane (QC) enable solar energy storage in a single molecule system. We present a new photoelectrochemical infrared reflection absorption spectroscopy (PEC-IRRAS) experiment, which allows monitoring of the complete energy storage and release cycle by in situ vibrational spectroscopy. Both processes were investigated, the photochemical conversion from NBD to QC using the photosensitizer 4,4'-bis(dimethylamino)benzophenone (Michler's ketone, MK) and the electrochemically triggered cycloreversion from QC to NBD. Photochemical conversion was obtained with characteristic conversion times on the order of 500 ms. All experiments were performed under full potential control in a thin layer configuration with a Pt(111) working electrode. The vibrational spectra of NBD, QC, and MK were analyzed in the fingerprint region, permitting quantitative analysis of the spectroscopic data. We determined selectivities for both the photochemical conversion and the electrochemical cycloreversion and identified the critical steps that limit the reversibility of the storage cycle.



FAU-Autoren / FAU-Herausgeber

Bachmann, Julien Prof.
Lehrstuhl für Chemistry of thin film materials
Bauer, Udo
Lehrstuhl für Physikalische Chemie II
Bochmann, Sebastian
Lehrstuhl für Anorganische und Allgemeine Chemie
Brummel, Olaf Dr.
Lehrstuhl für Physikalische Chemie II
Libuda, Jörg Prof. Dr.
Professur für Physikalische Chemie
Papp, Christian PD Dr.
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II
Waidhas, Fabian
Lehrstuhl für Physikalische Chemie II
Wu, Yanlin
Lehrstuhl für Anorganische und Allgemeine Chemie


Zitierweisen

APA:
Brummel, O., Waidhas, F., Bauer, U., Wu, Y., Bochmann, S., Steinrück, H.-P.,... Libuda, J. (2017). Photochemical Energy Storage and Electrochemically Triggered Energy Release in the Norbornadiene-Quadricyclane System: UV Photochemistry and IR Spectroelectrochemistry in a Combined Experiment. Journal of Physical Chemistry Letters, 8(13), 2819-2825. https://dx.doi.org/10.1021/acs.jpclett.7b00995

MLA:
Brummel, Olaf, et al. "Photochemical Energy Storage and Electrochemically Triggered Energy Release in the Norbornadiene-Quadricyclane System: UV Photochemistry and IR Spectroelectrochemistry in a Combined Experiment." Journal of Physical Chemistry Letters 8.13 (2017): 2819-2825.

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Zuletzt aktualisiert 2018-08-08 um 04:27