Transition metal-free graphene framework based on disulfide bridges as a Li host material

Controlling the spacing of the linked graphene oxide system with dithiol linkers under confinement

“…The synthesis procedures for basewashed and thiol-functionalized graphene oxide were carried out following previous literature. 26,31 Graphene oxide (500 mg) was mixed in DI water (500 ml) and dispersed in it for 30 min through mild sonication. Then, a solution of 1.25 M NaOH (10 ml) was added and stirred at 70 °C for (1 hour), and centrifuged at 12 500 rpm for 30 min.…”

“…TPDT is available commercially, but we synthesized the QPDT. Synthesis of disulde-linking molecules is reported by Yoo et al 26 To explore the impact of the structure of a linker component on connement effect, TPDT and QPDT were used as functional organic linkers in the graphene oxide. The synthesis of [1,1 ′ :4 ′ ,1 ′′ :4 ′′ ,1 ′′′ -quaterphenyl]-4,4 ′′ -dithiol (QPDT) was reported by Baldea and Frisbie et al 32 2.1.1.…”

“…The synthesis procedures for base-washed and thiol-functionalized graphene oxide were carried out following previous literature. 26,31…”

“…31,40,41 However, this region overlaps with the doublet peak at 163-164 eV for disulde (S-S). 26,[42][43][44] From all of these studies, we conclude that peak tting is not an accurate method for conrming disulde bonds since thiol and disulde bonds overlap signicantly. In addition, the XPS S 2p region spectra for thiol functionalized GO (Fig.…”

Electronic structure and charge-density wave transition in monolayer VS2

“…[39][40][41]. We note that further systematic studies of core level states for various thicknesses is desired to monitoring evolution of each bonding states.…”