Polyviologen hydrogel with high-rate capability for anodes toward an aqueous electrolyte-type and organic-based rechargeable device

Naoki Sano, Wataru Tomita, Shu Hara, Cheong Min Min, Jae Suk Lee, Kenichi Oyaizu, Hiroyuki Nishide

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

A highly cross-linked polyviologen hydrogel, poly(tripyridiniomesitylene) (PTPM), has been designed as an anode-active material. It displays a reversible two-electron redox capability at -0.4 and -0.8 V vs Ag/AgCl in an aqueous electrolyte. The PTPM layer coated on a current collector by electropolymerization via a 4-cyanopyridinium electro-coupling reaction demonstrates a rapid charging-discharging reaction with a redox capacity comparable to that obtainable using the formula weight-based theoretical density, because of the combination of the redox-active viologen moieties built into the hydrogel. A test cell that has been fabricated using the developed PTPM anode, a poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl acrylamide) (PTAm)-based cathode, and an aqueous electrolyte exhibits a discharging voltage of 1.1 and 1.5 V, and has proven its ability to be recharged more than 2000 times.

Original languageEnglish
Pages (from-to)1355-1361
Number of pages7
JournalACS Applied Materials and Interfaces
Volume5
Issue number4
DOIs
Publication statusPublished - 2013

Fingerprint

Hydrogel
Hydrogels
Electrolytes
Anodes
Viologens
Electropolymerization
Acrylamide
Cathodes
Electrons
Electric potential
Oxidation-Reduction

Keywords

  • aqueous electrolyte
  • electropolymerization
  • polyviologen
  • rechargeable device
  • redox polymer

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Polyviologen hydrogel with high-rate capability for anodes toward an aqueous electrolyte-type and organic-based rechargeable device. / Sano, Naoki; Tomita, Wataru; Hara, Shu; Min, Cheong Min; Lee, Jae Suk; Oyaizu, Kenichi; Nishide, Hiroyuki.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 4, 2013, p. 1355-1361.

Research output: Contribution to journalArticle

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AU - Lee, Jae Suk

AU - Oyaizu, Kenichi

AU - Nishide, Hiroyuki

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