A waste corn cob core-derived SiO₂ @ graphene-like carbon nanocomposite (CCC) has been synthesized by a hydro-thermal and high-temperature carbonization process. The CCC material is carbonized at 900 °C (CCC-900). The SiO₂ nanoparticle with a granule size of 100–200 nm could be grown on the graphene-like carbon nanosheets. The BET-specific surface area can be calculated to be 481.81 m² g⁻¹. When it is used as an anode material for lithium-ion battery, the CCC composite can display the foremost discharge capacity of 2051.5 mAh g⁻¹ at 200 mA g⁻¹ and the maintain capacity of 125 mAh g⁻¹ after 200 cycles. The high foremost discharge capacity could be attributed to the synergistic effect of SiO₂ nanoparticles and graphene-like sheets.

通过水热高温碳化法合成了一种废玉米芯核来源的SiO ₂ @石墨烯样碳纳米复合材料。CCC材料在900°C（CCC-900）下碳化。可以在类似石墨烯的碳纳米片上生长粒径为100–200 nm的SiO ₂纳米粒子。BET比表面积可以计算为481.81m ²  g ^-1。当将其用作锂离子电池的负极材料时，CCC复合材料在200 mA g ^-1下的最大放电容量为2051.5 mAh g ^-1，维持容量为125 mAh g ^-1200个周期后。最高的放电容量可归因于SiO ₂纳米颗粒和石墨烯样片的协同作用。