Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors

In this work, ternary hybrid nanocomposites with different weight percentages of rGO/Ppy/CoFe2O4 and rGO/Ppy/Fe3O4 were synthesized through a hydrothermal approach. Structural properties were investigated by using Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and tr...

Full description

Bibliographic Details
Main Authors:	Mariappan, Chinnasamy Ramaraj, Gajraj, V, Gade, S, Kumar, A, Dsoke, S, Indris, Sylvio, Ehrenberg, Helmut, Vijaya Prakash, Gaddam, Rajan, Jose
Format:	Article
Language:	English
Published:	Elsevier 2019
Subjects:	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/25028/ http://umpir.ump.edu.my/id/eprint/25028/ http://umpir.ump.edu.my/id/eprint/25028/1/J%20Electroanal%20Chem_Mariappan.pdf

id	ump-25028
recordtype	eprints
spelling	ump-250282019-10-14T06:55:02Z http://umpir.ump.edu.my/id/eprint/25028/ Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors Mariappan, Chinnasamy Ramaraj Gajraj, V Gade, S Kumar, A Dsoke, S Indris, Sylvio Ehrenberg, Helmut Vijaya Prakash, Gaddam Rajan, Jose QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering In this work, ternary hybrid nanocomposites with different weight percentages of rGO/Ppy/CoFe2O4 and rGO/Ppy/Fe3O4 were synthesized through a hydrothermal approach. Structural properties were investigated by using Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and transmission electron microscopy (TEM) with selected area electron diffraction. TEM studies show embedded spinel-type metal oxide nanoparticles, branched Ppy chains and Ppy particles on rGO. The results of the structural and morphological investigations clearly reveal the formation of ternary hybrid nanocomposites. The influence of the content of spinel-type metal oxides on electrochemical properties of nanocomposites was investigated via cyclic-voltammetry, electrochemical impedance spectroscopy and galvanostatic charging/discharging measurements in 1 M LiNO3 electrolyte. The specific capacitance is found to be 261, 141, 108 and 68.3 F g−1 at 1 A g−1 for 37wt%rGO/58Ppy/5Fe3O4 (FO5), 32wt%rGO/54Ppy/14Fe3O4 (FO14), 37wt%rGO/58PPy/5CoFe2O4 (CFO5), and 32wt%rGO/54Ppy/14CoFe2O4 (CFO14), respectively. Charge storage mechanisms were interpreted through Power's law and Trasatti plot. Among these samples, FO5 exhibits high specific capacitance with good rate capacitance performance (163 F g−1 at 10 A g−1). A hybrid supercapacitor was fabricated with FO5 composite as a positive electrode, activated carbon (AC) as a negative electrode and 1 M LiNO3 as an electrolyte. As a result, the FO5//AC cell exhibits the specific capacitance of 31.8 F g−1 at 3.0 A g−1 with excellent rate capability and good cycling performances. The energy and powder densities are found to be in the range of 17.74–4.17 Wh kg−1 and 0.3–10.4 kW kg−1 respectively with an output voltage of 0–1.6 V. Elsevier 2019-05-16 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25028/1/J%20Electroanal%20Chem_Mariappan.pdf Mariappan, Chinnasamy Ramaraj and Gajraj, V and Gade, S and Kumar, A and Dsoke, S and Indris, Sylvio and Ehrenberg, Helmut and Vijaya Prakash, Gaddam and Rajan, Jose (2019) Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors. Journal of Electroanalytical Chemistry, 845. pp. 72-83. ISSN 1572-6657 https://doi.org/10.1016/j.jelechem.2019.05.031
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering Mariappan, Chinnasamy Ramaraj Gajraj, V Gade, S Kumar, A Dsoke, S Indris, Sylvio Ehrenberg, Helmut Vijaya Prakash, Gaddam Rajan, Jose Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
description	In this work, ternary hybrid nanocomposites with different weight percentages of rGO/Ppy/CoFe2O4 and rGO/Ppy/Fe3O4 were synthesized through a hydrothermal approach. Structural properties were investigated by using Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and transmission electron microscopy (TEM) with selected area electron diffraction. TEM studies show embedded spinel-type metal oxide nanoparticles, branched Ppy chains and Ppy particles on rGO. The results of the structural and morphological investigations clearly reveal the formation of ternary hybrid nanocomposites. The influence of the content of spinel-type metal oxides on electrochemical properties of nanocomposites was investigated via cyclic-voltammetry, electrochemical impedance spectroscopy and galvanostatic charging/discharging measurements in 1 M LiNO3 electrolyte. The specific capacitance is found to be 261, 141, 108 and 68.3 F g−1 at 1 A g−1 for 37wt%rGO/58Ppy/5Fe3O4 (FO5), 32wt%rGO/54Ppy/14Fe3O4 (FO14), 37wt%rGO/58PPy/5CoFe2O4 (CFO5), and 32wt%rGO/54Ppy/14CoFe2O4 (CFO14), respectively. Charge storage mechanisms were interpreted through Power's law and Trasatti plot. Among these samples, FO5 exhibits high specific capacitance with good rate capacitance performance (163 F g−1 at 10 A g−1). A hybrid supercapacitor was fabricated with FO5 composite as a positive electrode, activated carbon (AC) as a negative electrode and 1 M LiNO3 as an electrolyte. As a result, the FO5//AC cell exhibits the specific capacitance of 31.8 F g−1 at 3.0 A g−1 with excellent rate capability and good cycling performances. The energy and powder densities are found to be in the range of 17.74–4.17 Wh kg−1 and 0.3–10.4 kW kg−1 respectively with an output voltage of 0–1.6 V.
format	Article
author	Mariappan, Chinnasamy Ramaraj Gajraj, V Gade, S Kumar, A Dsoke, S Indris, Sylvio Ehrenberg, Helmut Vijaya Prakash, Gaddam Rajan, Jose
author_facet	Mariappan, Chinnasamy Ramaraj Gajraj, V Gade, S Kumar, A Dsoke, S Indris, Sylvio Ehrenberg, Helmut Vijaya Prakash, Gaddam Rajan, Jose
author_sort	Mariappan, Chinnasamy Ramaraj
title	Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
title_short	Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
title_full	Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
title_fullStr	Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
title_full_unstemmed	Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
title_sort	synthesis and electrochemical properties of rgo/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
publisher	Elsevier
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25028/ http://umpir.ump.edu.my/id/eprint/25028/ http://umpir.ump.edu.my/id/eprint/25028/1/J%20Electroanal%20Chem_Mariappan.pdf
first_indexed	2023-09-18T22:38:13Z
last_indexed	2023-09-18T22:38:13Z
_version_	1777416738890055680

Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors

Similar Items