Eco-friendly cellulose based solid electrolyte with high performance and enhanced low humidity performance by hybridizing with aluminum fumarate MOF

Jaeok Ko, Seong Ku Kim, Yeoheung Yoon, Kyung Ho Cho, Wooseok Song, Tae Ho Kim, Sung Myung, Sun Sook Lee, Young Kyu Hwang, Sang Woo Kim, Ki Seok An

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Abundant yet undeveloped, cellulose and various derivatives of cellulose are materials that we see and touch every day. Here, we report a novel polymer proton conducting electrolyte synthesized by chemical modification of hydroxypropyl cellulose, which opens a new possibility of utilizing a renowned environmental friendly material for environmentally friendly applications. The modified cellulose by attaching sulfonic acid functional groups exhibits proton conductivity of 172 mS/cm at room temperature under 100% relative humidity with negligible electron or hole leakage through the membrane. By hybridizing the modified cellulose with aluminum fumarate metal-organic-framework (A520), dehydration of the cellulose based electrolyte membrane is significantly moderated to enhance low humidity conductivity by more than an order of magnitude. The A520 hybridized sulfonated cellulose is utilized as the electrolyte for all-solid-state supercapacitor, which demonstrated specific capacitance as high as 135.14 F/g at 75% relative humidity with stable performance even at low humidity.

Original languageEnglish
Pages (from-to)11-18
Number of pages8
JournalMaterials Today Energy
Volume9
DOIs
Publication statusPublished - 2018 Sept

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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