NanoUp group just published a an article about the use of Covalent-organic Frameworks (COFs) for cooling systems, using light regeneration, in Advanced Energy Materials.
Dr. Javier Pérez‐Carvajal and Gerard Boix from NanoUp have successfully highlighted the potential of COFs in cooling systems, with easy regeneration by moderate heat, or even light. Published in Advanced Energy Materials, the study shows rapid cycling without cooling capacity loss, and a cooling coefficient performance among the best materials.
Congratulations Javier & Gerard!
Abstract: Adsorption‐based cooling systems, which can be driven by waste heat and solar energy, are promising alternatives to conventional, compression‐based cooling systems, as they demand less energy and emit less CO2. The performance of adsorption‐based cooling systems relates directly to the performance of the working pairs (sorbent–water). Accordingly, improvement of these systems relies on the continual discovery of new sorbents that enable greater mass exchange while requiring less energy for regeneration. Here, it is proposed that covalent‐organic frameworks (COFs) can replace traditional sorbents for adsorption‐based cooling. In tests mimicking standard operating conditions for industry, the imine‐based COF TpPa‐1 exhibits a regeneration temperature below 65 °C and a cooling coefficient of performance of 0.77 – values which are comparable to those reported for the best metal–organic framework sorbents described to date. Moreover, TpPa‐1 exhibits a photothermal effect and can be regenerated by visible light, thereby opening the possibility for its use in solar‐driven cooling.
Javier Pérez‐Carvajal, Gerard Boix, Inhar Imaz and Daniel Maspoch. The Imine‐Based COF TpPa‐1 as an Efficient Cooling Adsorbent That Can Be Regenerated by Heat or Light . Adv. Energy Mater. 2019, 1901535. DOI: 10.1002/aenm.201901535