中文关键词:石墨烯石墨烯/聚苯胺复合材料废旧锂离子电池 英文关键词:GrapheneGraphene/polyaniline compositesSpent lithium-ion batterie 基金项目:陕西省教育厅专项科研计划项目(18JK1155)

作者	单位	E-mail
赵春宝	西安文理学院	276377944@qq.com
刘振	西安文理学院
熊珍	西安文理学院
韩敏	西安文理学院

摘要点击次数:1182 全文下载次数:0 中文摘要: 以废旧手机锂离子电池回收的负极石墨粉制备的氧化石墨烯和苯胺单体为原料，利用氧化石墨烯（GO）活化H2O2产生的·OH为氧化剂，采用原位复合法制备了不同质量比例的石墨烯/聚苯胺复合材料，通过FT-IR、XRD和SEM对其进行了表征，并利用循环伏安、交流阻抗、恒电流充放电等电化学测试方法对其电化学性能进行了测试。实验结果表明:该类石墨烯/聚苯胺复合材料具有良好的电化学性能，当电流密度为100 mA/g时，质量比为1:10制备的石墨烯/聚苯胺复合材料（rGO/PANI-10）的比电容达到481 F/g，较石墨烯比容量161 F/g，提高了 199 %，较聚苯胺（PANI）比容量351 F/g，提高了37 %；在电流密度500m A/g下，rGO/PANI-10充放电循环1000圈后，电容保持率77%，表现出较好循环稳定性。 英文摘要: Abstract：Using Graphene oxide (GO),which was prepared from cathodic graphite powder of spent lithium-ion batteries by an improved oxidation-reduction method, and aniline monomer as starting materials, the graphene/polyaniline composites were prepared via in situ polymerization by hydroxyl free radicals (?OH) from GO activated H202 .The structure of the composite was characterized by FT-IR, XRD and SEM. The electrochemical behavior of the composites electrode was evaluated by cyclicvoltammetry (CV), electrochemical impedance spectroscopy (ElS) and galvanostatic charge-discharge tests (GCD). The results showed that the capacitance of rGO/PANI-10 was 481F/g at a current density of 100 mA/g, and it retained 77% capacitance after 1000 cycles at a current density of 500mA/g. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书 -->