The study of polythiophene, poly(3-methylthiophene) and poly(3,4-ethylenedioxythiophene) on pencil graphite electrode as an electrode active material for supercapacitor applications

2013 ◽  
Vol 184 ◽  
pp. 16-22 ◽  
Author(s):  
Evrim Hür ◽  
Görkem Ali Varol ◽  
Andaç Arslan
Keyword(s):  
Graphite Electrode ◽  
Active Material ◽  
Pencil Graphite Electrode ◽  
Supercapacitor Applications

Electrochemical Characterisation of Poly(aniline-co-N-methylaniline) and Poly(aniline-co-N-ethylaniline) Films on Pencil Graphite Electrode for Supercapacitor Applications

2013 ◽  
Vol 66 (7) ◽  
pp. 825 ◽  
Author(s):  
Andac Arslan ◽  
Evrim Hur
Keyword(s):  
Specific Capacitance ◽  
Low Voltage ◽  
Electrochemical Impedance ◽  
Graphite Electrode ◽  
Pencil Graphite Electrode ◽  
Supercapacitor Electrode ◽  
Copolymer Films ◽  
Electrochemical Storage ◽  
Supercapacitor Applications ◽  
Poly Aniline

In this work, poly(aniline-co-N-methylaniline) (co-PNMA) and poly(aniline-co-N-ethylaniline) (co-PNEA) have been electrochemically synthesised on pencil graphite electrode (PGE) surface to use as an electrode material for supercapacitors. The films have been formed from aqueous solution of monomers and sulfuric acid as electrolyte. The copolymer films have been characterised by cyclic voltammetry (CV), Mott-Schottky (MS) analysis, and scanning electron microscopy (SEM). The electrochemical storage properties of uncoated electrode and copolymer coated electrodes (PGE/co-PNMA and PGE/co-PNEA) have been investigated via CV, electrochemical impedance spectroscopy (EIS), and repeating chronopotentiometry (RCP) methods in 0.100 M H2SO4 solution. Experimental results indicate that PGE/co-PNMA exhibits higher specific capacitance than PGE/co-PNEA. Highest specific capacitance values of the PGE/co-PNMA and PGE/co-PNEA have been obtained as 213.85 mF g–1 (17.7 mF cm–2) and 48.60 mF g–1 (4.36 mF cm–2) at 50 mV s–1, respectively when compared with that of uncoated PGE which is 1.63 mF g–1 (0.14 mF cm–2). Charge-discharge characteristics of the electrodes have shown that both of the electrodes can be used as supercapacitor electrode active materials for low voltage (<10 V) applications.

Cobalt ion-doped polyaniline, poly(N-methylaniline), and poly(N-ethylaniline): electrosynthesis and characterisation using electrochemical methods in acidic solutions

2014 ◽  
Vol 68 (11) ◽  
Author(s):  
Evrim Hur ◽  
Andac Arslan
Keyword(s):  
Low Voltage ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Electrochemical Methods ◽  
Pencil Graphite Electrode ◽  
Cobalt Ion ◽  
Acidic Solutions ◽  
Doped Polyaniline ◽  
Eis Measurements ◽  
Supercapacitor Applications

AbstractCobalt ion (Co2+)-doped polyaniline (PANI-Co), poly(N-methylaniline) (PNMA-Co), and poly(N-ethylaniline) (PNEA-Co) films were synthesised electrochemically on a pencil graphite electrode (PGE) and their electrochemical properties were investigated for supercapacitor applications. The polymer film-coated electrodes (PGE/PANI-Co, PGE/PNMA-Co, and PGE/PNEA-Co) thus obtained were characterised by scanning electron microscopy (SEM) and different electrochemical methods. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements were employed in 0.1 M H2SO4 solution to calculate the specific capacitance (C S) values of the electrodes. The maximum C S of 192.94 F g−1, 139.83 F g−1, and 47.12 F g−1 were achieved for PGE/PANI-Co, PGE/PNMA-Co, and PGE/PNEA-Co at 1 mV s−1, respectively. On the other hand, the charge/discharge stability of the electrodes was analysed using the repeating chronopotentiometry (RCP) method. The RCP measurements indicate that the electrodes could be used as an electrode active material for low voltage supercapacitor applications.

Design of An electrochemical platform for Determination of Diclofenac Sodium utilizing a Graphenized Pencil Graphite Electrode Modified with Cu-Al Layered Double Hydroxide/ Chicken Feet Yellow Membrane

2021 ◽  
Author(s):  
Younes Bahadori ◽  
Habib Razmi
Keyword(s):  
Electrochemical Sensor ◽  
Layered Double Hydroxide ◽  
Graphite Electrode ◽  
Diclofenac Sodium ◽  
Pencil Graphite Electrode ◽  
Double Hydroxide

A novel electrochemical sensor based on the Cu-Al layered double hydroxide (Cu-Al LDH) by chicken feet yellow membrane (CFYM) on graphenized pencil graphite electrode (GPGE) was designed. The present modified...

MnO 2 Nanoclusters Decorated on GrapheneModified Pencil Graphite Electrode for Non‐Enzymatic Determination of Cholesterol

2020 ◽  
Vol 32 (10) ◽  
pp. 2128-2136
Author(s):  
Sherin Rison ◽  
K. B. Akshaya ◽  
Vinay S Bhat ◽  
G. Shanker ◽  
T. Maiyalagan ◽  
...  
Keyword(s):  
Graphite Electrode ◽  
Pencil Graphite Electrode ◽  
Enzymatic Determination

Poly Silk Peptide Film PH Sensor Based on Zero Current Potentiometry

2012 ◽  
Vol 450-451 ◽  
pp. 554-556
Author(s):  
Ming Ming Ma ◽  
Zhi Tong ◽  
Yong Wen
Keyword(s):  
Graphite Electrode ◽  
Ph Sensor ◽  
Reference Electrode ◽  
Pencil Graphite Electrode ◽  
Solution Ph ◽  
Counter Electrodes ◽  
System A ◽  
Zero Current ◽  
In Series ◽  
Silk Peptide

A poly silk peptide film pH sensor has been developed using zero current potentiometry system. A poly silk peptide film coated pencil graphite electrode is connected in series between the working and counter electrodes of a potentiostat, and immersed in solution together with a reference electrode. When the solution pH varies, the resulting zero current potentiometry is linear with the values of the solution pH in the range of 1.81 to 11.58. This pH sensor shows high stability, accuracy, selectivity and reproduction.

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