Ternary hybrid electrode material based on polyaniline/carbon nanohorn/TiO2 with high performance energy storage capacity

Sandip Maiti, Sumanta K. Karan, Amit K. Das, Ranadip Bera and Bhanu B. Khatua*

Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India

Adv. Mater. Lett., 2018, 9 (4), pp 234-240

DOI: 10.5185/amlett.2018.1763

Publication Date (Web): May 17, 2018

E-mail: khatuabb@matsc.iitkgp.ernet.in

Abstract


Renewable energy is very much demanding in modern time. Herein, we have discussed energy storage performance of polyaniline (PANI) and carbon nanohorn (CNH) decorated titanium dioxide (TiO2) nanoparticle, high-performance electrode material. This high-performance energy storage material was prepared through simple and cost-effective method via in-situ polymerization of aniline in presence of CNH and TiO2 nanoparticles. Thus, as prepared active electrode material provides high specific capacitance value of 1068 F/g at current density of 3 A/g. The existence TiO2 nanoparticle in the ternary hybrid leads to enhancement of capacitance value through synergistic effect compared to the pure components (e.g., PANI and CNH are 335 F/g and 240 F/g, respectively at same current density). As morphological analysis says, TiO2 nanoparticles are observed to be coated by CNH nanofiller and PANI fiber in the hybrid, which plays a key role to enhance the capacitance value of hybrid making it highly promising electrode material for energy storage in the next-generation power supply. 

Keywords

Supercapacitor, polymer hybrid composite, high energy storage, polyaniline, carbon nanohorn, TiO2.

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