期刊
SCIENCE
卷 366, 期 6465, 页码 613-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aax7427
关键词
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资金
- Engineering and Physical Sciences Research Council [EP/N004884/1]
- European Research Council under the European Union/ERC [321156]
- Leverhulme Trust via the Leverhulme Research Centre for Functional Materials Design
- Chinese Young Scholar National Science Foundation [21403171]
- Xi'an JiaoTong-Liverpool University (XJTLU) [PGRS-13-03-08]
- XJTLU [KSF-E-03]
- Oversea Study Program of Guangzhou Elite Project from Guangzhou City, China
- Swiss National Science Foundation [200021-159896]
- European Research Council under the European Union [677013-HBMAP]
- EPSRC [EP/N004884/1] Funding Source: UKRI
The separation of hydrogen isotopes for applications such as nuclear fusion is a major challenge. Current technologies are energy intensive and inefficient. Nanoporous materials have the potential to separate hydrogen isotopes by kinetic quantum sieving, but high separation selectivity tends to correlate with low adsorption capacity, which can prohibit process scale-up. In this study, we use organic synthesis to modify the internal cavities of cage molecules to produce hybrid materials that are excellent quantum sieves. By combining small-pore and large-pore cages together in a single solid, we produce a material with optimal separation performance that combines an excellent deuterium/hydrogen selectivity (8.0) with a high deuterium uptake (4.7 millimoles per gram).
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