Adsorption separation of heavier isotope gases in subnanometer carbon pores.
Adsorption separation of heavier isotope gases in subnanometer carbon pores.
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DOI:
10.1038/s41467-020-20744-6
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发表时间:
2021-01-22
影响因子:
16.6
通讯作者:
Kaneko K
中科院分区:
文献类型:
--
作者:
Ujjain SK;Bagusetty A;Matsuda Y;Tanaka H;Ahuja P;de Tomas C;Sakai M;Vallejos-Burgos F;Futamura R;Suarez-Martinez I;Matsukata M;Kodama A;Garberoglio G;Gogotsi Y;Karl Johnson J;Kaneko K
Isotopes of heavier gases including carbon (13C/14C), nitrogen (13N), and oxygen (18O) are highly important because they can be substituted for naturally occurring atoms without significantly perturbing the biochemical properties of the radiolabelled parent molecules. These labelled molecules are employed in clinical radiopharmaceuticals, in studies of brain disease and as imaging probes for advanced medical imaging techniques such as positron-emission tomography (PET). Established distillation-based isotope gas separation methods have a separation factor (S) below 1.05 and incur very high operating costs due to high energy consumption and long processing times, highlighting the need for new separation technologies. Here, we show a rapid and highly selective adsorption-based separation of 18O2 from 16O2 with S above 60 using nanoporous adsorbents operating near the boiling point of methane (112 K), which is accessible through cryogenic liquefied-natural-gas technology. A collective-nuclear-quantum effect difference between the ordered 18O2 and 16O2 molecular assemblies confined in subnanometer pores can explain the observed equilibrium separation and is applicable to other isotopic gases. Separation of isotopes of heavier gases than hydrogen or helium is essential for biomedical applications, but current methods are very energy and time consuming. Here the authors report cryogenic separation of oxygen and methane isotopes through adsorption in nanoporous materials, based on a collective nuclear quantum effect.
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影响因子:
15
作者:
Gogotsi, Y;Dash, RK;Fischer, JE
通讯作者:
Fischer, JE
DOI:
10.1016/j.jasms.2005.02.005
发表时间:
2005-08-01
影响因子:
3.2
作者:
Hood, BL;Lucas, DA;Karsan, A
通讯作者:
Karsan, A
影响因子:
4.2
作者:
Kim, Jaewoo;Chang, Dae-Shik;Choi, Yun-Young
通讯作者:
Choi, Yun-Young
影响因子:
15
作者:
Niimura, Subaru;Fujimori, Toshihiko;Kaneko, Katsumi
通讯作者:
Kaneko, Katsumi
影响因子:
2.8
作者:
BEENAKKER, JJM;BORMAN, VD;KRYLOV, SY
通讯作者:
KRYLOV, SY