This work was financially supported by the National Natural Science Foundation of China (Nos. 21501015, 51604042, 31527803, 51774051, and 21545010).
机构署名:
本校为第一且通讯机构
院系归属:
化学与生物工程学院
物理与电子科学学院
摘要:
Carbon-coated and doped mesoporous silicon/carbon (m-Si/C) composites were successfully prepared via carbon coating and molten magnesiothermic reduction by using mesoporous silica (SBA-15) and dopamine as raw materials. Experimental results were theoretically verified by first-principles calculation. The obtained m-Si/C composites exhibited a high initial Coulombic efficiency of 73% at 0.1Ag−1 and an excellent cycling stability with 617.5mAhg−1 capacity after 100cycles at 0.1Ag−1. This excellent performance was attributed to the combination ...