Molecular Materials Group, Chalmers

Molecular Materials Group, Chalmers

About the blog

On this blog I will highlight interesting developments in research, at Chalmers and of our own research.

SSF Future Research Leader Grant

NewsPosted by Kasper Moth-Poulsen Fri, November 08, 2013 19:39:04

The Swedish Strategic Research Foundation (SSF) has decided to support our molecular solar thermal work through a 10 M SEK "future research leader" grant.

Utilization of solar energy in either photovoltaic or solar thermal power generation is limited by the inherent challenge of intermittency and load leveling. In these power generation systems, development of large scale electrical and thermal energy storage technologies that would mitigate these constraints has been challenging. In conventional oil- and coal-based power generation, energy that has been stored over geological time scales in the form of chemical bonds is released by combustion ‘‘on demand’’. A great deal of current scientific research effort is devoted to mimicking these processes on a shorter time scale by the creation of solar fuels via the splitting of water to form H2 and O2, or similar schemes to produce alcohols and other fuels from CO2. In this context, a closed cycle that reversibly stores energy upon exposure to sunlight (a photochemical reaction), followed by a second, on demand reaction, that generates heat and regenerates the original reactant, is very attractive as a renewable storage media for solar energy.

The aim of this project is to explore such molecular systems that allow for direct conversion of solar energy into storable chemical energy in a molecular based material, so-called molecular solar thermal (MOST).

The MOST energy storage process is reversible with full reuse of the materials in a closed cycle, meaning that it is 100% emission free and pollution free, once the materials has been manufactured and the devices installed.

the news about the funding has be featured in the local Swedish newspapers:

http://www.gp.se/nyheter/goteborg/1.2168507-10-miljoner-till-chalmersforskare

http://www.goteborgdaily.se/chalmers-researcher-receives-sek-10-million

Kasper







New Norbornadiene Paper

NewsPosted by Kasper Moth-Poulsen Tue, November 05, 2013 14:22:12

Victors, Anders, Phasin's and Karls work on donor-acceptor substituted Norbornadienes has been accepted for publication in the upcoming emerging investigator issue of ChemComm

Reported in the paper is a study on five diaryl-substituted norbornadienes with unprecedented characteristics in regard to performance towards molecular solar thermal applications. The introduced aryl-groups induce a significant red-shift in the UV/Vis absorption spectrum of the norbornadienes, while keeping the molecular weight low. Device experiments with a solar-simulator set-up demonstrates the potential use of these compounds in MOST energy storage. An interesting feature of this class of donor-acceptor norbonadienes is that they retain good quantum yield and thermal stability of their quadricyclane isomers and at the same time posses red-shift of absorption (appr. 195 nm compared to unsubstituted norbornadiene). This makes donor-acceptor norbornadienes a very exciting class of compounds to be considered for molecular solar thermal applications.

DOI: 10.1039/C3CC47517D

http://pubs.rsc.org/en/content/articlelanding/2013/cc/c3cc47517d#!divAbstract