Morphology control of polyaniline by dopant grown on hollow carbon fibers as high-performance supercapacitor electrodes
- 555 Downloads
The various morphologies of polyaniline are grown on carbon fibers derived from natural hollow cellulose by in situ polymerization of aniline. The morphologies of nanofibers, pyramid-like, nanorods and nanowires can be facilely controlled by the doping of hydrochloric acid, sulfuric acid, perchloric acid, phosphoric acid and p-toluenesulfonic acid, respectively. The perchloric acid doped composite shown the maximum specific capacitance of 580 F g−1 at 1.0 A g−1. Remarkably, the all solid-state supercapacitors based on this sample deliver a maximum energy density of 13.3 Wh kg−1. The excellent performance is attributed to the unique morphology and hollow structure of the conductive substrate, which can drastically facilitate the ion diffusion and improve the utilization of the electroactive.
KeywordsKapok fiber Hollow carbon fibers Polyaniline Morphology control Supercapacitors
The authors gratefully acknowledge the support of the National Natural Science Foundation of China (No. 51,303,190).
Supplementary material 2 (MP4 1530 kb)
- Gao SY, He SY, Zang PY, Dang LQ, Shi F, Xu H, Liu ZH, Lei ZB (2016) Polyaniline nanorods grown on hollow carbon fibers as high-performance supercapacitor electrodes. Chem Electro Chem 3:1142–1149Google Scholar
- Kang ET, Neoh KG, Tan KL (1993a) X-ray photoelectron spectroscopic studies of electroactive polymers. In: Polymer characteristics. Advances in Polymer Science, vol106. Springer, Berlin, HeidelbergGoogle Scholar
- Moulder JF, Stickle WF, Sobol PE, Bomben KD (1992) In: Chastian J (ed) Handbook of X-ray photoelectron spectroscopy. Perkin-Elmer Corp., MinnesotaGoogle Scholar