High-performance porous copolymer hydrogel for oceanic electricity generation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Tingting Ren
  • Guopeng Chen
  • Zuwei Zhou
  • Zining Li
  • Lu Huang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number140983
Journal / PublicationChemical Engineering Journal
Volume456
Online published16 Dec 2022
Publication statusPublished - 15 Jan 2023

Abstract

Micro/nano fluidic electricity generation systems based on solid–liquid interface interaction to harvest energy from water in nature offer a potential green and clean electricity generation method. However, the performances of electricity generation were limited in salt solutions. In this paper, we prepared an extraordinary-performance hydrogel through ultraviolet polymerization for the access of ion concentration energy in seawater. This copolymer hydrogel made of AAm/AA (acrylamide/acrylic acid) provides a negatively charged three-dimensional transport network with micro/nano porous channels, which exhibits extraordinary ion selectivity in high ion concentration solutions. The experimental results show that this electricity generation device with intrinsic micro/nano pores can generate a continuous open-circuit voltage of 0.37 V, a short-circuit current of 116 μA, and a power density of 89.4 µW/cm2 from seawater (the Yellow Sea in China). The output current and power can be maximally more than 100 times and 50 times higher than the existing results. Through the series connection of six devices, the overall output is sufficient to supply stable power to directly light up small commercial electronic devices. Our study presents a new research idea for the development of low-cost, environmentally friendly, and self-powered devices.

Research Area(s)

  • Copolymer hydrogel, Ion sieving, Micro/nano fluidic, Oceanic electricity generation

Citation Format(s)

High-performance porous copolymer hydrogel for oceanic electricity generation. / Xie, Shangzhen; Ren, Tingting; Chen, Guopeng et al.
In: Chemical Engineering Journal, Vol. 456, 140983, 15.01.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review