A multi-layered interdigitative-electrodes-based triboelectric nanogenerator for harvesting hydropower

Zong Hong Lin, Gang Cheng, Xiuhan Li, Po Kang Yang, Xiaonan Wen, Zhong Lin Wang

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Hydropower is the most important and wildly-used renewable energy source in the environment. In this paper, we demonstrate a multi-layered triboelectric nanogenerator (TENG) to effectively harvest the water wave energy. For a single-layered TENG, interdigitive electrodes are incorporated in order to generate multiple electric outputs under water wave or water drop impact. For the collection of water wave energy, a polyurethane (PU) coated copper rod is used to roll back and forth and contact with the polytetrafluoroethylene (PTFE) film covered interdigitative electrodes. The surfaces of the PU and PTFE films are fabricated as porous structures and nanowire arrays, which provide an advantages of large contact area and efficient separation. Under one wave impact, the single-layered TENG composed of nine pairs of interdigitative electrodes can provide nine pulses of electric outputs (each pulsed output voltage is 52V and output current density is 13.8mAm-2). The instantaneous output power density of a five-layered TENG is 1.1Wm-2. In addition, the PTFE film covered interdigitative electrodes has been successfully used to harvest water drop energy, whcih can also generate 9 pulses of electric outputs upon one water drop falling. All these results show the developed TENG has a potential to harvest the hydropower of ocean wave and raindrop in the near future.

Original languageEnglish
Pages (from-to)256-265
Number of pages10
JournalNano Energy
Volume15
DOIs
Publication statusPublished - Jul 1 2015
Externally publishedYes

Fingerprint

Water waves
Polytetrafluoroethylene
Polytetrafluoroethylenes
Electrodes
Polyurethanes
Water
Nanowires
Copper
Current density
Electric potential

Keywords

  • Hydropower
  • Interdigitative electrode
  • Self-powered nanosensor
  • Triboelectric nanogenerator
  • Water drop
  • Water wave

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

A multi-layered interdigitative-electrodes-based triboelectric nanogenerator for harvesting hydropower. / Lin, Zong Hong; Cheng, Gang; Li, Xiuhan; Yang, Po Kang; Wen, Xiaonan; Lin Wang, Zhong.

In: Nano Energy, Vol. 15, 01.07.2015, p. 256-265.

Research output: Contribution to journalArticle

Lin, Zong Hong ; Cheng, Gang ; Li, Xiuhan ; Yang, Po Kang ; Wen, Xiaonan ; Lin Wang, Zhong. / A multi-layered interdigitative-electrodes-based triboelectric nanogenerator for harvesting hydropower. In: Nano Energy. 2015 ; Vol. 15. pp. 256-265.
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