Synthesis of highly conductive PPy/graphene nanosheets/NiO composite using ultrasonic technique

作者：Wanhong Sun, Shujuan Meng, Rongxin Zang, Lihua Chen, Yanbin Wang · 发表于：Polymer Composites · 年份：2013 · DOI：10.1002/pc.22506 · 被引用次数：10 · 研究领域：Supercapacitor Materials and Fabrication、Conducting polymers and applications、Advanced Sensor and Energy Harvesting Materials

Highly conductive polypyrrole/graphene nanosheets/NiO (PPy/GNS/NiO) composites are fabricated via ultrasound technique using p ‐toluenesulfonic acid as a dopant and FeCl 3 as an oxidant. The effects of the GNS and NiO loading on the electrical conductivity are investigated. The maximum conductivity of PPy/GNS/NiO composites about 24.39 S/cm found with 3 wt% GNS and 48.7 wt% NiO at room temperature. The results showed that the high‐aspect‐ratio structure of GNS played an important role in forming a conducting network in PPy matrix. The microstructures of PPy/GNS/NiO are evidenced by the scanning electron microscope and transmission electron microscope examinations. The cyclic voltammetry curves can be seen that the PPy/GNS/NiO composites also have good electrochemical performance, and it can be used as a supercapacitor electrode material. POLYM. COMPOS., 34:997–1002, 2013. © 2013 Society of Plastics Engineers