Abstract
Adsorption-driven heat transfer is potentially a sustainable technology to decarbonize heating and cooling. However, the development of high-performance adsorbent-adsorbate working pairs remains extremely challenging. Here, we report a metal-organic framework/water working pair that can operate at an ultralow driving temperature (62 °C), showing a high coefficient of performance (COP) of 0.8 for cooling. The desirable features of MFM-300(M) (M = Al, Fe, Cr, V) for water adsorption have been elucidated by combined crystallographic and spectroscopic techniques. In situ neutron powder diffraction reveals the structural evolution of the MFM-300-D2O system via direct observation of the location of D2O at different stages of adsorption. Host-guest binding dynamics have been interrogated by in situ solid-state nuclear magnetic resonance spectroscopy and inelastic neutron scattering combined with modeling. This system promotes the use of renewable low-grade thermal energy rather than electricity to drive cooling.
| Original language | English |
|---|---|
| Pages (from-to) | 12481-12490 |
| Number of pages | 10 |
| Journal | Journal of the American Chemical Society |
| Volume | 147 |
| Issue number | 15 |
| DOIs | |
| State | Published - Apr 16 2025 |
Funding
We thank EPSRC (EP/I011870, EP/V056409/1), the National Science Foundation of China (22475022), the University of Manchester (DKO Fellowship to XH), BNLMS, Beijing Normal University, and Peking University for funding. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No. 742401, NANOCHEM). We are grateful to the STFC/ISIS facility for access to Beamline WISH. A portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by Oak Ridge National Laboratory. The computing resources were made available through the VirtuES and ICE-MAN projects, funded by the Laboratory Directed Research and Development program and the Compute and Data Environment for Science (CADES) at ORNL. W.H. thanks the China Scholarship Council (CSC) for support.
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