TY - JOUR
T1 - Temperature dependence of pressure-driven water permeation through membranes consisting of vertically-aligned double-walled carbon nanotube arrays
AU - Shirahama, Shiho
AU - Zhang, Shaoling
AU - Aiba, Motohiro
AU - Inoue, Hiroki
AU - Hada, Masaki
AU - Hayashi, Yasuhiko
AU - Hata, Kenjiro
AU - Tsuruoka, Shuji
AU - Matsumoto, Hidetoshi
N1 - Funding Information:
This work was partly supported by JSPS KAKENHI Grant Number JP 18K18994 (to HM). ST was supported by the Center of Innovation Program, “Global Aqua Innovation Center for Improving Living Standards and Water-sustainability” from Japan Science and Technology Agency, JST . Appendix A
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/5
Y1 - 2019/5
N2 - 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.
AB - 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.
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U2 - 10.1016/j.carbon.2019.02.031
DO - 10.1016/j.carbon.2019.02.031
M3 - Letter
AN - SCOPUS:85062153237
SN - 0008-6223
VL - 146
SP - 785
EP - 788
JO - Carbon
JF - Carbon
ER -