Temperature dependence of pressure-driven water permeation through membranes consisting of vertically-aligned double-walled carbon nanotube arrays

Shiho Shirahama, Shaoling Zhang, Motohiro Aiba, Hiroki Inoue, Masaki Hada, Yasuhiko Hayashi, Kenjiro Hata, Shuji Tsuruoka, Hidetoshi Matsumoto

Research output: Contribution to journalLetter

1 Citation (Scopus)

Abstract

We explore the temperature dependence of pressure-driven water permeation through membranes consisting of a vertically aligned double-walled carbon nanotube (VA DWCNT) array. The prepared membrane with CNT inner diameter of 3.9 nm exhibits no water permeation below the critical temperature of 26 °C, after which water permeability is first observed and increases with temperatures >26 °C. Further, the critical temperature decreases to 18 °C when the CNT inner diameter increases to 6.0 nm. The water permeation in the CNT-confined space exhibits activation energy transitions around room temperature, thereby suggesting that the confined water molecules in CNTs exhibit plural ordered structures.

Original languageEnglish
Pages (from-to)785-788
Number of pages4
JournalCarbon
Volume146
DOIs
Publication statusPublished - May 1 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Temperature dependence of pressure-driven water permeation through membranes consisting of vertically-aligned double-walled carbon nanotube arrays'. Together they form a unique fingerprint.

  • Cite this