Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps
© 2018 American Chemical Society. Rising global standards of living coupled to the recent agreement to eliminate hydrofluorocarbon refrigerants are creating intense pressure to develop more sustainable climate control systems. In this vein, the use of water as the refrigerant in adsorption heat pum...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society (ACS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/136378 |
| _version_ | 1826204670049124352 |
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| author | Rieth, Adam J Wright, Ashley M Rao, Sameer Kim, Hyunho LaPotin, Alina D Wang, Evelyn N Dincă, Mircea |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Rieth, Adam J Wright, Ashley M Rao, Sameer Kim, Hyunho LaPotin, Alina D Wang, Evelyn N Dincă, Mircea |
| author_sort | Rieth, Adam J |
| collection | MIT |
| description | © 2018 American Chemical Society. Rising global standards of living coupled to the recent agreement to eliminate hydrofluorocarbon refrigerants are creating intense pressure to develop more sustainable climate control systems. In this vein, the use of water as the refrigerant in adsorption heat pumps is highly attractive, but such adsorption systems are constrained to large size and poor efficiency by the characteristics of currently employed water sorbents. Here we demonstrate control of the relative humidity of water uptake by modulating the pore size in a family of isoreticular triazolate metal-organic frameworks. Using this method, we identify a pair of materials with stepped, nonoverlapping water isotherms that can function in tandem to provide continuous cooling with a record ideal coefficient of performance of 1.63. Additionally, when used in a single-stage heat pump, the microporous Ni 2 Cl 2 BBTA has the largest working capacity of any material capable of generating a 25 °C difference between ambient and chiller output. |
| first_indexed | 2024-09-23T12:59:10Z |
| format | Article |
| id | mit-1721.1/136378 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:59:10Z |
| publishDate | 2021 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1363782023-03-24T18:04:11Z Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps Rieth, Adam J Wright, Ashley M Rao, Sameer Kim, Hyunho LaPotin, Alina D Wang, Evelyn N Dincă, Mircea Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Mechanical Engineering © 2018 American Chemical Society. Rising global standards of living coupled to the recent agreement to eliminate hydrofluorocarbon refrigerants are creating intense pressure to develop more sustainable climate control systems. In this vein, the use of water as the refrigerant in adsorption heat pumps is highly attractive, but such adsorption systems are constrained to large size and poor efficiency by the characteristics of currently employed water sorbents. Here we demonstrate control of the relative humidity of water uptake by modulating the pore size in a family of isoreticular triazolate metal-organic frameworks. Using this method, we identify a pair of materials with stepped, nonoverlapping water isotherms that can function in tandem to provide continuous cooling with a record ideal coefficient of performance of 1.63. Additionally, when used in a single-stage heat pump, the microporous Ni 2 Cl 2 BBTA has the largest working capacity of any material capable of generating a 25 °C difference between ambient and chiller output. 2021-10-27T20:35:06Z 2021-10-27T20:35:06Z 2018 2019-09-20T11:32:29Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136378 en 10.1021/JACS.8B09655 Journal of the American Chemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Other repository |
| spellingShingle | Rieth, Adam J Wright, Ashley M Rao, Sameer Kim, Hyunho LaPotin, Alina D Wang, Evelyn N Dincă, Mircea Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title | Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title_full | Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title_fullStr | Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title_full_unstemmed | Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title_short | Tunable Metal–Organic Frameworks Enable High-Efficiency Cascaded Adsorption Heat Pumps |
| title_sort | tunable metal organic frameworks enable high efficiency cascaded adsorption heat pumps |
| url | https://hdl.handle.net/1721.1/136378 |
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