Electrical properties of composite based on in-situ synthesis of polyaniline and graphite

• Published in: Materials letters 2022-02, Vol.308, p.131133, Article 131133
• Main Authors: Gao, Meiling, Wan, Xianglong, Lai, Shengfa, Cui, Hao, Chen, Zhibo, Qian, Yanfeng, Ding, Guoxin, Cheng, Guojun
• Format: Article
• Language: English
• Subjects: Aniline; Capacitance; Composite materials; Electrical properties; Electrical resistivity; Electrochemistry; Electrode materials; Graphite; Materials science; Polyaniline; Polyanilines; Substrates; Synergistic effect; Thermal stability
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2021.131133

[Display omitted] •Graphite instead of graphene nanosheets can be easy to prepare a cheap composite for application to industry.•Cheap composites based on PANI and graphite with the high capacitance.•Graphite enhance the property of thermal stability in this composite.•1% graphite in composite provides better-bombinated performances. The high capacitance and good thermal stability of polyaniline (PANI) as an electrode material are the main factors in its application. In this work, graphite (G) powder was used as the substrate for the growth of aniline by in-situ polymerization to get a PANI/G composite. The results showed that the electrical conductivity of the PANI/G composite was improved greatly by the synergistic effect. When the ratio of G to PANI is 1.0%, the REDOX peak of the cyclic voltammetry curve of PANI composite electrode material is obvious and the closure area is relatively large. When the current density is 1 A/g, the specific capacitance reaches 699.3 F/g. The combination of capacitance and thermal stability of PANI/G composite is well promised, which promotes this cheap composite to be used in the electrochemistry industry widely.