Nitrogen-rich graphene from small molecules as high performance anode material.

摘要: Nitrogen-rich graphene sheets were successfully achieved via facile thermal condensation of glucose and dicyandiamide at different temperatures during which acts both as nitrogen source sacrifice template. Devoid surfactants or poisonous organic solvents, this small-molecule synthetic approach is a simple cost-effective way to obtain nitrogen-rich (NRGS) with high specific surface area large pore volume. Shown be promising anode material, the NRGS displayed reversible capacity, excellent rate capability, superior cycle performance. The lithium-storage performance ascribed unique features NRGS, including quantity defects due doping level, favorable lithium ion transportation channels by virtue area, ultrahigh volume, well crumpled two-dimensional structure.