Carbon Aerogels Derived from Anion-Modified Nanocellulose for Adaptive Supercapacitor Performance

Yazan Al Haj, Ahmed B. Soliman, Jaana Vapaavuori*, Mady Elbahri*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In the pursuit of developing advanced carbon aerogel (CA) supercapacitors, a rational design approach is introduced that utilizes often overlooked conjugated anions to modulate the properties of CAs. Ionic cross-linking of cellulose nanocrystal (CNC) aerogels ensures the preservation of structural integrity even after carbonization. Interestingly, anion selection not only influences the cross-linking and carbonization processes but also significantly modulates the electrochemical performance of the resulting CAs. This is found to be vital in optimizing the overall supercapacitor performance. Electro-assisted (EA) wetting of the electrodes procures an adaptive and progressive performance enhancement, heralding the advent of sustainable supercapacitors crafted from earth-abundant materials.

Original languageEnglish
Article number2313117
Number of pages9
JournalAdvanced Functional Materials
DOIs
Publication statusE-pub ahead of print - 11 Mar 2024
MoE publication typeA1 Journal article-refereed

Keywords

  • carbon aerogels
  • cellulose nanocrystals
  • electro-assisted wetting
  • physical cross-linking
  • supercapacitors

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