热解温度对Sb/Sb_(2)O_(3)/rGO复合材料储钠行为的影响

Effect of Pyrolysis Temperature on the Sodium Storage Behavior of Sb/Sb_(2)O_(3)/rGO Composites

以醋酸锑为锑源和氧化石墨烯作为碳源,结合自组装和热还原技术合成锑基复合材料。研究了热解温度对复合材料储钠行为的影响。研究结果表明,当分段热解温度和热解时间分别为350℃2 h和500℃2 h时,合成复合材料作为钠离子电池负极,在0.2 A·g^(-1)下的稳定容量约为560 mAh·g^(-1),在8 A·g^(-1)下的可逆容量为213 mAh·g^(-1)。

Using antimony acetate as the antimony source and graphene oxide as the carbon source,Sb composites are synthesized by combining self-assembly and thermal reduction techniques.The effect of pyrolysis temperature on the sodium storage behavior of composites is investigated.The results show that when the staged pyrolysis temperature and pyrolysis time are 350℃2 h and 500℃2 h,respectively,the as-synthesized composites are used as anodes for Na-ion batteries.At 0.2 A·g^(-1),the stable capacity is about 560 mAh·g^(-1),and the reversible capacity is 213 mAh·g^(-1)at 8 A·g^(-1).