Carbon Nanorings and Their Enhanced Lithium Storage Properties
Carbon Nanorings and Their Enhanced Lithium Storage Properties
Jie Sun, Haimei Liu, Xu Chen, David G. Evans, Wensheng Yang* and Xue Duan
Advanced Materials, 2013, 25, 1125-1130
A method involving catalytic growth of carbon nanorings (CNRs) with an outer diameter of ~20 nm and axial length of ~1 nm in the confined interlayer galleries of a layered double hydroxide host co-intercalated with a carbon source and charge-balancing anion has been reported. The as-prepared CNRs with open tips and a ratio of length to diameter (L/d) much less than 1 exhibit excellent lithium storage performance, especially large reversible specific capacity under high-rate charge and discharge.
