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

Waidhas, Fabian; Jevric, Martyn; Fromm, Lukas; Bertram, Manon; Görling, Andreas; Moth‐Poulsen, Kasper; Brummel, Olaf; Libuda, Jörg

doi:10.1016/j.nanoen.2019.103872

Cited by 33 publications

(43 citation statements)

References 41 publications

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“…387 However, the photochemically generated quadricyclane is a small, light molecule and consists out of five highly strained rings, making the metastable isomer highly energetic and thus an excellent candidate for (solar) thermal energy storage that can be used in films or on surfaces. 388,397,[399][400][401][402][403] By attaching different substituents R (Fig. 27B), the absorption profile of norbornadiene can be tuned up to the green region of the visible spectrum.…”

Section: Isomerization Based On Photochemical Cyclization Reactionsmentioning

confidence: 99%

Molecular photoswitches in aqueous environments

et al. 2021

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Section: Isomerization Based On Photochemical Cyclization Reactionsmentioning

confidence: 99%

Molecular photoswitches in aqueous environments

et al. 2021

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“…In long-term experiments, up to 1,000 storage cycles and a reversibility of >99% were achieved. 114 It was identified that a limiting factor was electrode fouling at the Pt(111) electrode and uncontrolled catalytic back-conversion. In fact, both side reactions can be further mitigated by using more inert electrode materials.…”

Section: Controlling Energy Releasementioning

confidence: 99%

Storing energy with molecular photoisomers

Wang

Erhart

et al. 2021

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“…C-C bond formation, hence the relevance of using such a bond for photoelectrochemical energy storage (two-photon/two-electron gated reversible Carbon-Carbon bond). 11 Last, thanks to hysteretic behavior of the structronic elements, these can serve as a means for the molecular-level storage of information (molecular electronics). 12…”

Section: Introductionmentioning

confidence: 99%

Electron Storage System Based on a Two-Way Inversion of Redox Potentials

et al. 2020

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Molecular-level multielectron handling toward electrical storage is a worthwhile approach to solar energy harvesting. Here, a strategy which uses chemical bonds as electron reservoirs is introduced to demonstrate the new concept of “structronics” (a neologism derived from “structure” and “electronics”). Through this concept, we establish, synthesize, and thoroughly study two multicomponent “super-electrophores”: 1,8-dipyridyliumnaphthalene, 2, and its N,N-bridged cyclophane-like analogue, 3. Within both of them, a covalent bond can be formed and subsequently broken electrochemically. These superelectrophores are based on two electrophoric (pyridinium) units that are, on purpose, spatially arranged by a naphthalene scaffold. A key characteristic of 2 and 3 is that they possess a LUMO that develops through space as the result of the interaction between the closely positioned electrophoric units. In the context of electron storage, this “super-LUMO” serves as an empty reservoir, which can be filled by a two-electron reduction, giving rise to an elongated C–C bond or “super-HOMO”. Because of its weakened nature, this bond can undergo an electrochemically driven cleavage at a significantly more anodicyet accessiblepotential, thereby restoring the availability of the electron pair (reservoir emptying). In the representative case study of 2, an inversion of potential in both of the two-electron processes of bond formation and bond-cleavage is demonstrated. Overall, the structronic function is characterized by an electrochemical hysteresis and a chemical reversibility. This structronic superelectrophore can be viewed as the three-dimensional counterpart of benchmark methyl viologen (MV).

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

Cited by 33 publications

References 41 publications

Molecular photoswitches in aqueous environments

Molecular photoswitches in aqueous environments

Storing energy with molecular photoisomers

Electron Storage System Based on a Two-Way Inversion of Redox Potentials

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