Bromination of carbon nanohorns to improve sodium-ion storage performance

High-Surface-Area Graphene Oxide for Next-Generation Energy Storage Applications

“…For all samples, the deconvolution of C 1s regions of the XPS spectra reveals the presence of (apart from the phenol) ether and carbonyl and carboxyl/lactone groups, two additional features caused by the carbon defects (Figure and Table S1). , One of the reasons can be topological defects. It is postulated that they arise from the existence of carbon domains containing five- (∼283.7 eV) and seven-membered rings in the lattice (∼285.6 eV), respectively .…”

“…For all samples, the deconvolution of C 1s regions of the XPS spectra reveals the presence of (apart from the phenol) ether and carbonyl and carboxyl/lactone groups, two additional features caused by the carbon defects (Figure 7 and Table S1). 34,35 One of the reasons can be topological defects.…”

Fluorescent Nanocarbons: From Synthesis and Structure to Cancer Imaging and Therapy

“…The authors indicated that pyridinic-N atoms introduced via doping on the conical edges and sidewalls of the SWCNHs significantly enhanced their electron-transport capability by retaining electrocatalytically active sites. An early study by Stolyarova et al [397] showed that bromination of CNHs could create several active surface sites and pores, promoting their ability to adsorb sodium ions. The covalent attachment of bromine to the conical sections of CNHs and their use as anode materials in sodium-ion batteries increased their specific capacity to 129 mAh g −1 at 0.1 A g −1 , as opposed to undoped CNHs, which had a specific capacity of 117 mAh g −1 under the identical current density.…”