Superionic Conductivity in Hybrid of 3‐Hydroxypropanesulfonic Acid and Graphene Oxide. Issue 2 (21st December 2016)

• Record Type: Journal Article
• Authors: Wakata, Kosuke; Karim, Mohammad Razaul; Islam, Md. Saidul; Ohtani, Ryo; Nakamura, Masaaki; Koinuma, Michio; Hayami, Shinya
• Is Part Of: Chemistry, an Asian journal. Volume 12:Issue 2(2017)
• Page Start: 194
• Page End: 197
• Publication Date: 2016-12-21
• Subjects: conducting materials -- graphene -- host-guest systems -- proton conductivity -- superconductors; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201601488
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: Insertion of 3‐hydroxypropanesulfonicacid (HPS) in the graphene oxide (GO) interlayer results in high proton conductivity (10 −2 –10 −1 S cm −1 ), owing to an improvement in oxygen content, interlayer distance and water absorbing capacity. This result indicates that hydroxyalkylsulfonicacids can be perfect guest molecules for improving the proton conductivity of carbon materials. Abstract : GO with GO–HPS ! Organic guest molecules at the graphene oxide (GO) interlayer usually reduce the proton conductivity of a GO. A hybrid of GO and 3‐hydroxypropanesulfonic acid (HPS) exhibited a 20‐times higher proton conductivity value ( σ =10 −2− 10 −1 S cm −1 ), which is also the highest of all carbon‐based hybrid materials reported to date. Other similar acids could serve as guest molecules for improving proton conductivity of carbon and other layered materials in the future.