Electrochemical synthesis and potential electrochemical energy storage performance of nodule-type polyaniline

Y H Navale; S T Navale; M A Chougule; S M Ingole; F J Stadler; Rajaram S Mane; Mu Naushad; V B Patil

doi:10.1016/j.jcis.2016.09.038

Electrochemical synthesis and potential electrochemical energy storage performance of nodule-type polyaniline

J Colloid Interface Sci. 2017 Feb 1:487:458-464. doi: 10.1016/j.jcis.2016.09.038. Epub 2016 Sep 16.

Authors

Y H Navale¹, S T Navale², M A Chougule¹, S M Ingole¹, F J Stadler², Rajaram S Mane³, Mu Naushad⁴, V B Patil⁵

Affiliations

¹ Functional Materials Research Laboratory, School of Physical Sciences, Solapur University, Solapur 413255, M.S., India.
² College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518060, PR China.
³ Center for Nanomaterials & Energy Devices, Swami Ramanand Teerth Marathwada University, Dnyanteerth, Vishnupuri, Nanded 431606, India; Department of Chemistry, College of Science, Bld-5, King Saud University, Riyadh, Saudi Arabia. Electronic address: rajarammane70@srtmun.ac.in.
⁴ Department of Chemistry, College of Science, Bld-5, King Saud University, Riyadh, Saudi Arabia.
⁵ Functional Materials Research Laboratory, School of Physical Sciences, Solapur University, Solapur 413255, M.S., India. Electronic address: drvbpatil@gmail.com.

PMID: 27814557
DOI: 10.1016/j.jcis.2016.09.038

Abstract

Nodule-type polyaniline (PAni) has been successfully electrosynthesized onto conducting substrate and envisaged in electrochemical supercapacitor (ES) application as a potential energy storage electrode. Various bands are confirmed from the X-ray photoelectron and Fourier transform infrared spectra. Each nodule is of ∼100-200nminlength and 20-80nmindiameter. The ∼45° surface water contact angle with water of PAni surface can be beneficial for accessing an entire electrode area with minimum interfacial resistance loss when is in contact with the aqueous electrolyte for ES application. The PAni nodule-type electrode when electrochemically characterized using cyclic-voltammetry and galvanostatic charge-discharge measurements has demonstrated a specific capacitance of ∼508Fg^-1, a specific energy of 32.12Whkg^-1, a specific power of 13.39kWkg^-1 and a Coulombic efficiency of 100% in 1MH₂SO₄ electrolyte solution. An occurrence of 70% retention of initial capacity even after 5000 cycles is supporting for energy-storage application. Two separate redox reaction behaviors are confirmed in the discharge measurement.

Keywords: Charge transportation; Cyclic voltammetry; Electrosynthesis; Morphology analysis; Supercapacitor.