title: An exceptional kinetic quantum sieving separation effect of hydrogen isotopes on commercially available carbon molecular sieves.
abstract: The quantum sieving effect of H2/D2 at 77 K on commercially available carbon molecular sieves (1.5GN-H and 3KT-172) was studied. An exceptional reverse kinetic quantum effect is observed on 1.5GN-H where D2 diffuses much faster than H2 with a ratio of up to 5.83 at low pressure, and the difference is still very evident even as the pressure increases up to 1 bar. D2 also diffuses faster than H2 on 3KT-172 with a ratio of up to 1.86. However, the reverse kinetic sieving disappears in a polymer-based carbon (PC). The present kinetic quantum sieving effect of H2 and D2 at 77 K on 1.5GN-H is the highest to date.
authors: Institute of Unconventional Hydrocarbon and New Energy Sources, China University of Petroleum (East China), Qingdao 266580, China.
authors: Yanlong
authors: Y
authors: Xing
authors: Jinjun
authors: J
authors: Cai
authors: Liangjun
authors: L
authors: Li
authors: Menglong
authors: M
authors: Yang
authors: Xuebo
authors: X
authors: Zhao
mesh_terms: D002244:Carbon / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D007554:Isotopes; D007700:Kinetics; D011789:Quantum Theory
chemical_list: D007554:Isotopes; D002244:Carbon; D006859:Hydrogen