Electricity generation based on a photothermally driven Ti3C2Tx MXene nanofluidic water pump

Junchao Lao, Shuang Wu, Jun Gao, Anping Dong, Guojie Li, Jiayan Luo*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

A popular method to harvest solar power is to convert light to heat, then to the kinetic energy of water, and finally to electricity, so-called concentrating solar power. However, it requires highly bulky components, limiting the applications. In this study, we present a miniaturized nanofluidic version—simply placing a MXene film on ionic solution and exposing part of the film to light. The distinguished photothermal property of MXene converts the asymmetric light irradiation to a water evaporation gradient, pumping water through the nanofluidic channels in the film, which transports cations and results in an ionic current. We expect this study to inspire more studies to explore the possibility of nanofluidic photothermal electricity as an alternative solar electricity technology for dispatched electricity generation and powering microfluidic/nanofluidic devices.

Original languageEnglish
Article number104481
JournalNano energy
Volume70
DOIs
Publication statusPublished - Apr 2020

Keywords

  • Evaporation
  • Nanofluidic
  • Photothermal
  • TiC
  • Water pump

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