摘要
采用水热法制备了MoS_2,并用乳液法进一步将聚苯胺(PANI)与MoS_2复合,得到具有纤维网状结构的MoS_2/PANI复合材料。利用扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)、热重分析(TG)和电化学测试等研究了材料的形貌、结构和超级电容性能。结果表明,MoS_2/PANI既保持了PANI纳米纤维的基本形貌,又能使MoS_2较好地分散在PANI中形成网状结构。恒流充放电结果显示,MoS_2/PANI在0.2 A·g^(-1)电流密度下的比容量高达411 F·g^(-1),远高于纯PANI;Mo S2/PANI在1 A·g^(-1)电流密度下循环300次后比容量保持率为91.7%,表现出了良好的循环稳定性。MoS_2/PANI优异的超级电容性可归因于二者的相互协同作用。
MoS2was synthesized by a hydrothermal method. MoSz/PANI composites with nanofiber net- works were prepared by an emulsion method. The morphology, structure and electrochemical performance of the composite were investigated with scanning electronic microscopy （ SEM）, Fourier transform infra- red spectroscopy （FT-IR）, thermal gravimetric analysis （TG） and electrochemical measurements. The result showed that the composite maintained the PANI nanofiber mophology, and formed a network with MoS2. The super capacity of MoS2/PANIreached 411 F g-1 at 0.2 A g-1, higher than that of pure PANI or pure MoS2. The retention rate of MoS2/PANI was found to be 91.7% after 300 cycles at 1 A · g-1 These results indicate that MoSi/PANI possesses good cycle stability, and its capacity performance is better than that of pure PANI or MoS2. The excellent performance of MoSJPANI can be attributed to the mutual synergy of PANI and MoS2.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2016年第4期509-514,共6页
Journal of Natural Science of Heilongjiang University
基金
国家自然科学基金资助项目(51503169
21406176)
