Nanoporous Graphene Membranes for Efficient 3He/4He Separation

被引：144
作者：
Hauser, Andreas W. [1 ]
Schwerdtfeger, Peter [1 ,2 ]
机构：
[1] Massey Univ, CTCP, New Zealand Inst Adv Study NZIAS, N Shore City 0745, Auckland, New Zealand
[2] Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2012年 / 3卷 / 02期
关键词：
CORRELATED MOLECULAR CALCULATIONS; GAUSSIAN-BASIS SETS; POROUS GRAPHENE; DOPED GRAPHENE; HE-3; CARBON; BORON;
D O I：
10.1021/jz201504k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nanoporous functionalized graphene membranes containing nitrogen atoms in a nanosized ring pore have the capability to separate He-3 from He-4 efficiently by quantum tunneling through the pore. Calculations on size-reduced model systems of single-graphene pores reveal that a balanced choice of tunneling barrier height and low gas temperature boosts the selectivity and keeps the helium gas flux at an industrially exploitable level.
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收藏
页码：209 / 213
页数：5
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