Robust High Thermoelectric Harvesting Under a Self-Humidifying Bilayer of Metal Organic Framework and Hydrogel Layer

Byeonggwan Kim, Jongbeom Na, Hanwhuy Lim, Younghoon Kim, Jinbo Kim, Eunkyoung Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Robust thermoelectric harvesting is explored from a proton-doped mixed ionic conductive (PMIC) film under water-harvesting metal organic framework (MOF) film coupled with hydrogel layer (MOF/HG). As a PMIC, highly doped poly(3,4-ethylenedioxythiophene)s with poly(styrene sulfonate) (PEDOT:PSS) is prepared by precisely controlling the proton doping to afford a stable and high thermoelectric PMIC. Among the PMICs, the PEDOT:PSS film doped with 30 wt% of poly(styrene sulfonic acid) (PSSH) recorded a Seebeck coefficient of over 16.2 mV K −1 and a thermal voltage of 81 mV for a temperature gradient (ΔT) of 5 K. The thermal charging on PMICs afforded high thermal voltage and current output, reproducibly, to show cumulative thermoelectric nature. Environmentally sustainable thermoelectric harvesting is achieved from a PMIC under a MOF/HG, prepared by water-harvesting MOF-801 coupled with a HG layer, to provide constant relative humidity of 90% and V oc over 72 h at ambient condition.

Original languageEnglish
Article number1807549
JournalAdvanced Functional Materials
Volume29
Issue number7
DOIs
Publication statusPublished - 2019 Feb 14

Fingerprint

Hydrogel
Hydrogels
Protons
Metals
protons
Styrene
metals
polystyrene
Conductive films
Sulfonic Acids
Seebeck coefficient
Water
sulfonic acid
Electric potential
electric potential
Seebeck effect
sulfonates
Thermal gradients
water
charging

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kim, Byeonggwan ; Na, Jongbeom ; Lim, Hanwhuy ; Kim, Younghoon ; Kim, Jinbo ; Kim, Eunkyoung. / Robust High Thermoelectric Harvesting Under a Self-Humidifying Bilayer of Metal Organic Framework and Hydrogel Layer. In: Advanced Functional Materials. 2019 ; Vol. 29, No. 7.
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Robust High Thermoelectric Harvesting Under a Self-Humidifying Bilayer of Metal Organic Framework and Hydrogel Layer. / Kim, Byeonggwan; Na, Jongbeom; Lim, Hanwhuy; Kim, Younghoon; Kim, Jinbo; Kim, Eunkyoung.

In: Advanced Functional Materials, Vol. 29, No. 7, 1807549, 14.02.2019.

Research output: Contribution to journalArticle

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