Ion transport through thermally reduced and mechanically stretched graphene oxide membrane

Wook Choi, Kyoung Yong Chun, Jongwoon Kim, Chang-Soo Han

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We investigated the ion transport behavior of graphene oxide (GO) and reduced graphene oxide (rGO) membranes along with thermal treatment and mechanical stretching. The GO membrane with about 400 nm thickness was fabricated onto a polytetrafluoroethylene membrane by vacuum filtration method and then thermally reduced at 120 and 230 °C, respectively. Various ions with different sizes were transported across the membranes via the electric field. As the results, we found that the ion transport linearly depends on the stretching up to 40% of the membrane in most ions. The thermal reduction of the membrane significantly affected the stabilization and modulation the rate of ion transport. Also, we discussed the ion transport mechanism of the stretchable rGO membranes based on the experimental data.

Original languageEnglish
Pages (from-to)377-382
Number of pages6
JournalCarbon
Volume114
DOIs
Publication statusPublished - 2017 Apr 1

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Oxides
Ions
Membranes
Stretching
Polytetrafluoroethylene
Stabilization
Heat treatment
Electric fields
Modulation
Vacuum

ASJC Scopus subject areas

  • Chemistry(all)

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Ion transport through thermally reduced and mechanically stretched graphene oxide membrane. / Choi, Wook; Chun, Kyoung Yong; Kim, Jongwoon; Han, Chang-Soo.

In: Carbon, Vol. 114, 01.04.2017, p. 377-382.

Research output: Contribution to journalArticle

Choi, Wook ; Chun, Kyoung Yong ; Kim, Jongwoon ; Han, Chang-Soo. / Ion transport through thermally reduced and mechanically stretched graphene oxide membrane. In: Carbon. 2017 ; Vol. 114. pp. 377-382.
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