Macroscopic heat release in a molecular solar thermal energy storage system
Artikel i vetenskaplig tidskrift, 2019

The development of solar energy can potentially meet the growing requirements for a global energy system beyond fossil fuels, but necessitates new scalable technologies for solar energy storage. One approach is the development of energy storage systems based on molecular photoswitches, so-called molecular solar thermal energy storage (MOST). Here we present a novel norbornadiene derivative for this purpose, with a good solar spectral match, high robustness and an energy density of 0.4 MJ kg-1. By the use of heterogeneous catalyst cobalt phthalocyanine on a carbon support, we demonstrate a record high macroscopic heat release in a flow system using a fixed bed catalytic reactor, leading to a temperature increase of up to 63.4 °C (83.2 °C measured temperature). Successful outdoor testing shows proof of concept and illustrates that future implementation is feasible. The mechanism of the catalytic back reaction is modelled using density functional theory (DFT) calculations rationalizing the experimental observations.

Författare

Zhihang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group

Anna Roffey

Chalmers, Kemi och kemiteknik

Raul Losantos

Universidad de La Rioja

Anders Lennartsson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Martyn Jevric

Chalmers, Kemi och kemiteknik

Anne U. Petersen

Chalmers, Kemi och kemiteknik

Maria Quant

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group

Ambra Dreos

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group

Xin Wen

Chalmers, Kemi och kemiteknik

Diego Sampedro

Universidad de La Rioja

Karl Börjesson

Göteborgs universitet

Kasper Moth-Poulsen

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group

Energy and Environmental Sciences

1754-5692 (ISSN)

Vol. 12 1 187-193

Ämneskategorier

Energiteknik

Kemiska processer

Energisystem

DOI

10.1039/c8ee01011k

Mer information

Senast uppdaterat

2019-07-17