Red algae-derived k-carrageenan-based proton-conducting electrolytes for the wearable electrical devices

P. Perumal, P. Christopher Selvin

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Proton-conducting non-porous nature of k-carrageenan-based flexible solid electrolytes was prepared by facile solution casting technique. Altering the composition of NH4COOH, free ion percentage (%) was improved significantly and contributed vital role on the proton conductivity to an utmost level of 8.54 × 10−4 Scm−1. Especially, increasing the composition of protonic carrier, electrochemical stability window was tuned tremendously and topmost value of 6.3 V was captured for the 0.4 (M wt%) NH4COOH added electrolyte. Also, interfacial adhesion energy of the electrolytes was enhanced to the maximum level of 96.27 Jm−2, inferred from contact angle measurements. The obtained significant electrochemical performance of k-carrageenan-based samples is an excellent substitute direction towards the cost-effective and eco-friendly wearable electrical applications.

Original languageEnglish
Pages (from-to)2249-2260
Number of pages12
JournalJournal of Solid State Electrochemistry
Volume24
Issue number10
DOIs
StatePublished - 1 Oct 2020
Externally publishedYes

Keywords

  • Biopolymer
  • Contact angle
  • Free ions
  • PEMFC
  • Proton conductivity

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Chemistry

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