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A nanoporous carbon/cobalt oxide (NPC/Co3O4) composite was synthesized from a single-precursor (zeolitic imidazolate framework-67). Transmission electron microscopy showed that the Co3O4 nanoparticles with an average particle size of 10 nm (±2 nm) were well dispersed in the NPC matrix. However, in a few places, Co3O4 nanoparticles were aggregated. The composite shows outstanding performance in terms...
A composite comprising reduced graphene oxide (RGO) and titanium nitride (TiN) was fabricated via a combined two-step process of sol-gel and ammonia annealing. Transmission electron microscopy showed that TiN nanoparticles with a mean diameter of <10nm were densely decorated onto the RGO surface. Cyclic voltammetry indicated that a glassy carbon electrode (GCE) modified with the RGO–TiN nanocomposite...
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