碳化氧化石墨烯/壳聚糖超级电容器电极复合材料的制备及表征

摘要

The carbonized graphene oxide(GO)/chitosan composites were prepared by atmosphere sintering in Ar atmosphere at 600℃,700℃,800℃ and 900℃.The carbonized GO/chitosan composites were characterized by XRD,SEM,FTIR and electrochemical station.The results indicate that the carbonized GO/chitosan composites ex-hibit the significant improvement(around 67%)in mechanical properties comparing with pristine chitosan.The spe-cific capacitance of the carbonized GO/chitosan sample fabricated at 800℃ is about 131 F/g,the specific capacitance retention after 1 500 cycles is higher than 97%.%采用 Ar氛烧结碳化法在600℃、700℃、800℃及900℃下制备了基于氧化石墨烯(GO)/壳聚糖复合材料的超级电容器电极材料.通过 XRD、SEM、FTIR及循环伏安等电化学手段,系统评价了碳化的 GO/壳聚糖复合材料作为超级电容器电极材料的可能性.通过与文献报道的纯壳聚糖碳化材料的相关性能进行比较,结果表明:碳化 GO/壳聚糖复合材料力学性能较纯壳聚糖碳化材料提高约67 %,而且具有良好的电容器材料的性质.800℃碳化 GO/壳聚糖复合材料样品的比电容达131 F/g,1500次充放电后比电容保持率达97%.