Guanine‐Derived Nitrogen‐Doped Ordered Mesoporous Carbons for Lithium‐Ion Battery Anodes

Abstract In this study, nitrogen‐doped ordered mesoporous carbons (NOMCs) were synthesized by using low‐molecular‐weight phenolic resin precursors (resol) as carbon source, guanine as nitrogen source and SBA‐15 as hard template. Controlling the amount of guanine, NOMC with moderate nitrogen content (8.76 wt%) and specific surface area (1020 m 2 g −1 ) was obtained. The nitrogen atoms were incorporated into the carbon matrix in the form of pyridinic and graphitic nitrogen species. Used as lithium ion battery anode, it has a reversible capacity of 562.4 mA h g −1 at current density of 100 mA g −1 after 100 cycles. Moreover, it exhibits enhanced rate performance. The improved electrochemical properties can be ascribed to the nitrogen‐doped frameworks and ordered mesoporous structure.