A Water Soluble and Solid‐State Molecular Solar Thermal (MOST) System as Renewable Solar Fuel
Abstract
AbstractSolar energy storage is key to overcome the intermittent character of sunlight. We present a sustainable solution based on norbornadiene–quadricyclane pairs for molecular solar thermal (MOST) energy storage working in highly concentrated neutral water solutions and solid state. Photochemical preparation of high‐energy, metastable isomers in previously unattainable 1.64 M solutions was achieved. The best compound can be stored for 1.9 years and is stable in solid state, allowing for the preparation of up to 3 M water solutions. Catalyzed back‐conversion ensures efficient heat release and starting material recovery with remarkable fatigue resistance in water solution and solid state, exhibiting macroscopic heat release in both states, providing a ΔT of 39.6 K and fully recyclable use. These results highlight a promising avenue for the practical application of MOST technology.
Article Details
Authors (6)
Sara Hernáez‐Troya
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja C/Madre de Dios 53 Logroño 26004 Spain
Nil Sanosa
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja Madre de Dios 53 Logroño 26006 Spain
Alberto Giménez‐Gómez
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja C/Madre de Dios 53 Logroño 26004 Spain
Víctor Pozo‐Gavara
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja C/Madre de Dios 53 Logroño 26004 Spain
Diego Sampedro
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja Madre de Dios 53 Logroño 26006 Spain
Ignacio Funes‐Ardoiz
Department of Chemistry Instituto de Investigación Química de la Universidad de La Rioja (IQUR) Universidad de La Rioja Madre de Dios 53 Logroño 26006 Spain