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Evaluating Dihydroazulene/Vinylheptafulvene Photoswitches for Solar Energy Storage Applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Zhihang Udmark, Jonas Börjesson, Karl Rodrigues, Rita Roffey, Anna Abrahamsson, Maria Nielsen, Mogens Brøndsted Moth-Poulsen, Kasper |
| Copyright Year | 2017 |
| Abstract | Efficient solar energy storage is a key challenge in striving toward a sustainable future. For this reason, molecules capable of solar energy storage and release through valence isomerization, for so-called molecular solar thermal energy storage (MOST), have been investigated. Energy storage by photoconversion of the dihydroazulene/vinylheptafulvene (DHA/VHF) photothermal couple has been evaluated. The robust nature of this system is determined through multiple energy storage and release cycles at elevated temperatures in three different solvents. In a nonpolar solvent such as toluene, the DHA/VHF system can be cycled more than 70 times with less than 0.01 % degradation per cycle. Moreover, the [Cu(CH3 CN)4 ]PF6 -catalyzed conversion of VHF into DHA was demonstrated in a flow reactor. The performance of the DHA/VHF couple was also evaluated in prototype photoconversion devices, both in the laboratory by using a flow chip under simulated sunlight and under outdoor conditions by using a parabolic mirror. Device experiments demonstrated a solar energy storage efficiency of up to 0.13 % in the chip device and up to 0.02 % in the parabolic collector. Avenues for future improvements and optimization of the system are also discussed. |
| Starting Page | 3049 |
| Ending Page | 3055 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/cssc.201700679 |
| PubMed reference number | 28644559 |
| Journal | Medline |
| Volume Number | 10 |
| Alternate Webpage(s) | https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8c/29/CSSC-10-3049.PMC5655704.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/cssc.201700679 |
| Journal | ChemSusChem |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
