Moisture adsorption-desorption full cycle power generation

  • Haiyan Wang
  • , Tiancheng He
  • , Xuanzhang Hao
  • , Yaxin Huang
  • , Houze Yao
  • , Feng Liu*
  • , Huhu Cheng*
  • , Liangti Qu*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

198 Citations (Scopus)

Abstract

Environment-adaptive power generation can play an important role in next-generation energy conversion. Herein, we propose a moisture adsorption-desorption power generator (MADG) based on porous ionizable assembly, which spontaneously adsorbs moisture at high RH and desorbs moisture at low RH, thus leading to cyclic electric output. A MADG unit can generate a high voltage of ~0.5 V and a current of 100 μA at 100% relative humidity (RH), delivers an electric output (~0.5 V and ~50 μA) at 15 ± 5% RH, and offers a maximum output power density approaching to 120 mW m−2. Such MADG devices could conduct enough power to illuminate a road lamp in outdoor application and directly drive electrochemical process. This work affords a closed-loop pathway for versatile moisture-based energy conversion.

Original languageEnglish
Article number2524
JournalNature Communications
Volume13
Issue number1
DOIs
Publication statusPublished - Dec 2022
Externally publishedYes

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