Monolithic Zirconium-Based Metal–Organic Frameworks for Energy-Efficient Water Adsorption Applications
| Autor: | Ceren Çamur, Robin Babu, José A. Suárez del Pino, Nakul Rampal, Javier Pérez‐Carvajal, Philipp Hügenell, Sebastian‐Johannes Ernst, Joaquin Silvestre‐Albero, Inhar Imaz, David G. Madden, Daniel Maspoch, David Fairen‐Jimenez |
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| Přispěvatelé: | Universidad de Alicante. Departamento de Química Inorgánica, Materiales Avanzados, Çamur, Ceren [0000-0002-4475-0511], Fairen-Jimenez, David [0000-0002-5013-1194], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Water adsorption
Metal–organic frameworks Renewable cooling Mechanics of Materials Mechanical Engineering renewable cooling General Materials Science Coefficient of performance heating ventilation and air conditioning heating ventilation and air conditioning metal-organic frameworks coefficient of performance water adsorption |
| Popis: | Space cooling and heating, ventilation, and air conditioning (HVAC) accounts for roughly 10% of global electricity use and are responsible for ca. 1.13 gigatonnes of CO2 emissions annually. Adsorbent-based HVAC technologies have long been touted as an energy-efficient alternative to traditional refrigeration systems. However, thus far, no suitable adsorbents have been developed which overcome the drawbacks associated with traditional sorbent materials such as silica gels and zeolites. Metal–organic frameworks (MOFs) offer order-of-magnitude improvements in water adsorption and regeneration energy requirements. However, the deployment of MOFs in HVAC applications has been hampered by issues related to MOF powder processing. Herein, three high-density, shaped, monolithic MOFs (UiO-66, UiO-66-NH2, and Zr-fumarate) with exceptional volumetric gas/vapor uptake are developed—solving previous issues in MOF-HVAC deployment. The monolithic structures across the mesoporous range are visualized using small-angle X-ray scattering and lattice-gas models, giving accurate predictions of adsorption characteristics of the monolithic materials. It is also demonstrated that a fragile MOF such as Zr-fumarate can be synthesized in monolithic form with a bulk density of 0.76 gcm−3 without losing any adsorption performance, having a coefficient of performance (COP) of 0.71 with a low regeneration temperature (≤ 100 °C). This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (NanoMOFdeli), ERC-2016-COG 726380, Innovate UK (104384) and EPSRC (EP/S009000/1). N.R. acknowledges support from the Cambridge International Scholarship and the Trinity Henry-Barlow Scholarship (honorary). D.F.-J. thanks the Royal Society for funding through a University Research Fellowship. The XPS facility and the Tecnai F20 TEM are supported through the Cambridge Royce facilities grant EP/P024947/1 and Sir Henry Royce Institute—recurrent grant EP/R00661X/1. J.S.A. would like to acknowledge financial support from Ministerio de Ciencia e Innovación (Project PID2019-108453GB-C21). |
| Databáze: | OpenAIRE |
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