title: Optimization of proton conductivity in graphene oxide by filling sulfate ions.
abstract: Graphene oxide (GO) walled channels filled by sulfate ions exhibit an optimized proton conductivity, which is higher than the proton conductivity of all other forms of GO. The sulphate ion increases the water absorbing capacity and hydrogen bond reformation process in GO.
authors.affiliation: Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan. yasumi@gpo.kumamoto-u.ac.jp Hayami@sci.kumamoto-u.ac.jp.
authors.forename: Kazuto
authors.initials: K
authors.lastname: Hatakeyama
authors.forename: Mohammad Razaul
authors.initials: MR
authors.lastname: Karim
authors.forename: Chikako
authors.initials: C
authors.lastname: Ogata
authors.forename: Hikaru
authors.initials: H
authors.lastname: Tateishi
authors.forename: Takaaki
authors.initials: T
authors.lastname: Taniguchi
authors.forename: Michio
authors.initials: M
authors.lastname: Koinuma
authors.forename: Shinya
authors.initials: S
authors.lastname: Hayami
authors.forename: Yasumichi
authors.initials: Y
authors.lastname: Matsumoto