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【6th.Dec.】Solar Energy Storage Using Molecular Photoswitches

2019-12-03


TOPIC:Solar Energy Storage Using Molecular Photoswitches
SPEAKER:Prof. Kasper Moth-Poulsen, Chalmers University of Technology, Gothenburg, Sweden
TIME: 2019年12月6日,下午16:00 
LOCATION:化学A楼518室
INVITER:李涛 特别研究员
 
Introuction of Prof. Kasper Moth-Poulsen





Kasper Moth-Poulsen graduated from University of Copenhagen (2007) and continued as a postdoc untill 2009 where he joined UC Berkeley as a post doctoral scholar. In 2011 he was recruited to Chalmers University of Technology in Gothenburg Sweden as an assistant professor. Today he holds the title of full professor. In recent years, KMP’s research is focusing of molecular solar thermal energy storage, nanoparticle based sensors and catalyst materials. KMP is since 2017 scientific advisor and board member of the company ConScience AB. His research is listed by The Royal Swedish Academy of Engineering Sciences (IVA) IVA100 (2019) list of academic projects with high commercial potential. His research has been featured in more than 400 news articles during recent 18 months, including CNN, CBS, BBC, Bloomberg and others. Selected prestigious grants and awards includes: Arnbergska prize 2019 (personal award) from the Swedish Royal Academy of Science. ERC starting grant (2013), SSF future research leaders grant (2013) and K&A Wallenberg Fellow grant (2014). Thieme Chemistry Journal Award (2014), Stipend from His Majesty King Carl XVI Gustaf's foundation 2013 (personal award). KMP has published more than 107 research papers, including publications in Nature Nanotechnology, Nature Materials, Energy and Environmental Science. The papers has been cited 3800 times according to Google Scholar.


Abstract
Renewable energy technologies are leading the transition in energy production away from fossil fuels. A key component for unlocking the technical barriers is long term heat storage with minimized losses. To solve these challenges, we are developing new energy systems based on photochemical systems that store solar energy, which has been referred to as molecular solar thermal energy storage (MOST). Norbornadiene (NBD) and its derivatives undergo photoisomerisation to the highly strained quadricyclane (QC). The system is being optimized towards solar energy storage applications, and the best NBD derivatives fulfil several of the requirements for a functional system. However, several key challenges remain; for example, substituents needed to improve the solar spectrum match and quantum yield of unsubstituted NBD typically reduce the energy density. In addition, the use of solvents in characterization dilutes the effective energy densities of the systems significantly. In this presentation, our efforts in improving the NBD/QC system towards efficient energy storage systems including new ways to improve solar spectrum match and energy storage time without making compromises on energy storage densities will be presented. Moreover, I will present device concepts for lab scale demonstration of solar energy capture (up to 900 cm2 devices) as well as heat release devices based on molecular photoswitches that perhaps one day can be used in real life application in solar energy storage. Further, a new research direction focusing on integration of these materials into functional coatings for thermal management in windows will be presented. 
References
1. Z. Wang, A. Roffey, R. Losantos, A. Lennartson, M. Jevric, A. U. Petersen, M. Quant, A. Dreos, X. Wen, D. Sampedro, K. Börjesson, K. Moth-Poulsen, Energ. Environ. Sci. 2019, 12, 187; (cover)
2. M. Jevric, A. U. Petersen, M. Mansø, S. Kumar Singh, Z. Wang, A. Dreos, C. Sumby, M. B. Nielsen, K. Börjesson, P. Erhart, K. Moth-Poulsen, Chem. Eur. J. 2018, 24, 12767; (frontispiece)
3. M. Manso, A. U. Petersen, Z. Wang, P. Erhart, M. B. Nielsen, K. Moth-Poulsen, Nat. Commun. 2018, 9, 1945;
4. A. Dreos, Z. Wang, J. Udmark, A. Ström, P. Erhart, K. Börjesson, M. B. Nielsen, K. Moth-Poulsen, Adv. Energ. Mater. 2018, 8, 1703401; (cover)
5. A. Dreos, K. Börjesson, Z. Wang, A. Roffey, Z. Norwood, D. Kushnir, K. Moth-Poulsen, Energ. Environ. Sci. 2017, 10, 728; (cover)
6. A. U. Petersen, A. I. Hofmann, M. Fillols, M. Mansø, M. Jevric, Z. Wang, C. J. Sumby, C. Müller, K. Moth-Poulsen, Adv. Sci. 2019, 6, 1900367.





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