期刊
SCIENCE
卷 369, 期 6502, 页码 392-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abb3976
关键词
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资金
- ExxonMobil Research and Engineering Company
- Office of Science, Office of Basic Energy Sciences, of the DOE [DE-AC02-05CH11231]
- U.S. DOE, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Office of Science, Office of Basic Energy Sciences, U.S. DOE [DE-AC02-05CH11231]
- KISTI Supercomputing Center [KSC-2019-CRE-0149]
- Philomathia Foundation
- Berkeley Energy and Climate Institute
- KIST Institutional Program [2E30460]
- Miller Institute for Basic Research in Science
- National Institute of General Medical Science of the National Institutes of Health [F32GM120799]
- National Research Foundation of Korea [2E30250] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Natural gas has become the dominant source of electricity in the United States, and technologies capable of efficiently removing carbon dioxide (CO2) from the flue emissions of natural gas-fired power plants could reduce their carbon intensity. However, given the low partial pressure of CO2 in the flue stream, separation of CO2 is particularly challenging. Taking inspiration from the crystal structures of diamine-appended metal-organic frameworks exhibiting two-step cooperative CO2 adsorption, we report a family of robust tetraamine-functionalized frameworks that retain cooperativity, leading to the potential for exceptional efficiency in capturing CO2 under the extreme conditions relevant to natural gas flue emissions. The ordered, multimetal coordination of the tetraamines imparts the materials with extraordinary stability to adsorption-desorption cycling with simulated humid flue gas and enables regeneration using low-temperature steam in lieu of costly pressure or temperature swings.
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