Superionic Conductivity in Hybrid of 3‐Hydroxypropanesulfonic Acid and Graphene Oxide

Abstract

Insertion of 3-hydroxypropanesulfonicacid (HPS) in the graphene oxide (GO) interlayer results in high proton conductivity (10 -10 S cm ), 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.

Hybrids from the π−π Stacking of Graphene Oxide and Aromatic Sulfonic Compounds for Improved Proton Conductivity

“…A very high PC of GO by means of sulfonic acid intercalation was reported by Hatakeyama et al . In addition, it was found that sulfonic acid derivative can increase the PC of GO significantly ,. Herein, we attempt to prepare GO‐based hybrid materials with benzene sulfonic acid (BS), naphthalene sulfonic acid (NS), pyrene sulfonic acid (PS) and naphthalene disulfonic acid (ND), chemical structures of which are C 6 H 6 O 3 S, C 10 H 8 O 3 S, C 16 H 10 O 3 S and C 10 H 8 S 2 O 6 , respectively.…”

Role of hydrophilic groups in acid intercalated graphene oxide as a superionic conductor

“…Previously, we also found that sulfate groups and g-hydroxy sulphonic acid groups are chemically inactive towards GO. 11,16 The hydrophilic sites of both the GO and intercalators remain unchanged in GO/PA and GO/FA (Fig. 2) while being stabilized by weak forces.…”

Chemical, Thermal, and Light-Driven Reduction of Graphene Oxide: Approach to Obtain Graphene and its Functional Hybrids

“…When GO is reduced into rGO or G, the peak intensity gradually reduces depending on the extent of reduction. For complete reduction, the spectra take the pattern of graphite almost, except revealing the existence of some residual oxygenated sites [39][40][41].…”