石墨二炔基膜：用于氦分离应用的优异性能
Graphdiyne based membranes: exceptional performances for helium separation applications
摘要：
石墨二炔是一种新的二维材料，衍生自最近合成的石墨烯，具有均匀分布的亚纳米孔。我们报告准确的计算表明，graphdiyne孔允许几乎畅通无阻的氦运输，可用于其化学和同位素分离。实验结果表明，该膜具有很高的He/CH_4选择性，大大超过了目前用于天然气抽提的最佳膜的性能。此外，通过利用^3He和^4He隧穿几率的微小差异，我们还发现了在低温下分离费米同位素的有希望的结果。
英文摘要：
Graphdiyne is a novel two-dimensional material deriving from graphene that has been recently synthesized and featuring uniformly distributed sub-nanometer pores. We report accurate calculations showing that graphdiyne pores permit an almost unimpeded helium transport which can be used for its chemical and isotopic separation. Exceptionally high He/CH_4 selectivities are found which largely exceed the performance of the best membranes used to date for extraction from natural gas. Moreover, by exploiting slight differences in the tunneling probabilities of ^3He and ^4He, we also find promising results for the separation of the Fermionic isotope at low temperature.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
