Oleylamine-assisted hydrothermal synthesis of ultrasmall NbOx nanoparticles and their in situ conversion to NbOx@C with highly reversible lithium storage†
Abstract
NbOx@C nanoparticles have been successfully synthesized through the oleylamine-mediated hydrolysis of niobium(V) chloride under solvothermal conditions, in combination with an annealing technique. When tested as anode materials, NbOx@C nanoparticles could deliver about 298 mA h g−1 after 200 cycles at 100 mA g−1.