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Boron nitride nanochannels encapsulating a water/heavy water layer for energy applications

机译:硼氮化物纳米纳米封装水/重水层的能量应用

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摘要

Water interaction and transport through nanochannels of two-dimensional (2D) nanomaterials hold great promises in several applications including separation, energy harvesting and drug delivery. However, the fundamental underpinning of the electronic phenomena at the interface of such systems is poorly understood. Inspired by recent experiments, herein, we focus on water/heavy water in boron nitride (BN) nanochannels -as a model system -and report a series of ab initio based density functional theory (DFT) calculations on correlating the stability of adsorption and interfacial properties, decoding various synergies in the complex interfacial interactions of water encapsulated in BN nanocapillaries. We provide a comparison of phonon vibrational modes of water and heavy water (D2O) captured in bilayer BN (BLBN) to compare their mobility and group speed as a key factor for separation mechanisms. This finding, combined with the fundamental insights into the nature of the interfacial properties, provides key hypotheses for the design of nanochannels.
机译:通过二维(2D)纳米材料的纳米通道的水相互作用和运输在包括分离,能量收集和药物递送的若干应用中具有巨大的承诺。然而,在这种系统界面处的电子现象的基本资金不明朗地理解。受到最近的实验的启发,这里,我们专注于氮化硼(BN)纳米纳米的水/重水 - A模型系统 - 报告一系列基于AB初始的密度泛函理论(DFT)计算,用于关联吸附和界面的稳定性性质,解码在BN纳米粉覆胶中封装的水复杂界面相互作用中的各种协同作用。我们提供了在双层BN(BLBN)中捕获的水和重水(D2O)的声子振动模式的比较,以将其移动性和组速度与分离机构的关键因素进行比较。这一发现与界面性质的性质相结合,为纳米通道设计提供关键假设。

著录项

  • 来源
    《RSC Advances》 |2019年第11期|共7页
  • 作者单位

    Rice Univ Dept Civil &

    Environm Engn Houston TX 77005 USA;

    Shahid Rajaee Teacher Training Univ Dept Chem Tehran 16875163 Iran;

    Rice Univ Dept Civil &

    Environm Engn Houston TX 77005 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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