2:45 PM - 3:00 PM
▲ [16p-B309-8] Hydrogen-Substituted Graphdiyne Encapsulated Cu2O Nanowires for Electrochemical Applications
Keywords:Carbon nanomaterials, Glaser coupling
Hydrogen-substituted Graphdiyne is an sp and sp2 hybridized carbon allotrope. There are three -CºC-CºC- bonds that are bridged in a hexagonal benzene ring and create a 2D planar network structure. This unique atomic arrangement endows many fascinating properties such as abundant chemical bonds, infinite natural pores, highly conjugated structures, electrical conductivity, electron mobility and stability [1]. Many carbon nanomaterials and their allotropes have proved their potential applications in electrochemical applications. Especially, graphite is the most commercial product for lithium-ion battery anode materials. Further, carbon nanotube, graphene and reduced graphene oxide have been extensively investigated to increase the device performance and a productive layer for electrochemical stability. Recently, highly p-conjugated carbon materials have been attracted due to their excellent conductivity and porosity which is an essential property for metal ion storage [2]. Among those materials, HsGDY is the most suitable material for metal ion storage due to its -CºC-CºC- bonds. Meanwhile, the combination of metal oxides with carbon material increases the overall electrochemical stability and ion storage ability. In the present work, HsGDY is synthesized over a Cu2O nanowire template by the Glaser homo-coupling reaction. The Raman results (Fig.1a) showed a strong peak at 2217 cm-1 which corresponds to -CºC- bonds and a peak at 991 cm-1 is the C-H side chain vibrations of HsGDY [3]. The SEM and EDS mapping results proved that the HsGDY was uniformly covered over Cu2O nanowires with thicknesses of 10, 12 and 16 nm for the reaction time of 6, 9 and 12 hours, respectively. The SEM and EDS mapping results are shown in Fig.1(b and c). The lithium-ion storage and electrochemical performance of the HsGDY will be evaluated.