Studies of structure and properties of graphene oxide prepared by ball milling

Graphene/Co9S8 nanocomposite paper as a binder-free and free-standing anode for lithium-ion batteries

“…[41][42][43] In addition, a very weak and broad peak related to RGO was also observed in the case of the nanocomposite at 2q ¼ 25.3 which can be attributed to the graphite-like (002) structure. 44,45 According to the XRD results, the grain size of Co 9 S 8 in RGO/Co 9 S 8 is 20-50 nm calculated by the Scherrer equation (D (hlk) ¼ Kl/B 1/2 cos q), in good agreement with the HRTEM image of the RGO/Co 9 S 8 nanocomposite.…”

A Facile Synthesis of Noble-Metal-Free Catalyst Based on Nitrogen Doped Graphene Oxide for Oxygen Reduction Reaction

“…In addition, note the shift in the position of the G peak towards lower values in the GO→bmGO→NbmGO series (see Table S3 of the Supplementary Materials). A shift in the position of the G peak towards lower values during GO milling was also observed previously [30].…”

Sustainable Synthesis of High-Surface-Area Graphite Oxide via Dry Ball Milling

“…The main features in the Raman analysis of graphene and its derivatives are the positions of the G and D bands and their overtones (2D). The G band is attributed to sp 2 hybridized carbon bonds (in-plane vibrations of the aromatic carbon structure), while the D band is an indication of structural defects (loss of hexagonal symmetry of disordered graphite). , The Raman spectra of graphite and the ball milled samples are shown in Figure a,b, and the Raman shifts for the D, G, D′, and 2D bands are summarized in Table . The Raman spectrum of graphite revealed D, G, and 2D bands at 1350, 1576, and 2711 cm –1 , respectively.…”

“…The G band is attributed to sp 2 hybridized carbon bonds (in-plane vibrations of the aromatic carbon structure), while the D band is an indication of structural defects (loss of hexagonal symmetry of disordered graphite). 55,56 The Raman spectra of 1. 4.…”