Jump to main content
Jump to site search


Fountain effect of ice-like water across nanotube at room temperature

Abstract

The well-known fountain effect of superfluid helium can directly convert heat to mechanical work by the transport of superfluid across narrow channels under a temperature difference. But it is regarded as the unique feature of superfluid, only occurring below the temperature of 2.17 K. Here we report the peculiar fountain effect of ice-like water across nanotubes at room temperature. Based on molecular simulations, we observed fascinating ultrafast fountain flow across nanotubes from cold side to hot side under a small temperature difference, due to the near-dissipationless nature of ice-like ordered water inside nanotubes. Water molecules exhibit collective behavior and spontaneously convert thermal energy from the surrounding into directed motion without dissipation. A surprising pressure difference up to 256 bar is generated from a temperature difference of 23 K, almost reaching the thermodynamic limit. This finding is anticipated to provide a new protocol for power harvesting devices, heat engines and nanomotors.

Back to tab navigation

Publication details

The article was received on 12 Jul 2017, accepted on 13 Sep 2017 and first published on 13 Sep 2017


Article type: Communication
DOI: 10.1039/C7CP04693F
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
  •   Request permissions

    Fountain effect of ice-like water across nanotube at room temperature

    K. Zhao and H. Wu, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP04693F

Search articles by author

Spotlight

Advertisements