Spray pyrolysed Ru:TiO2 thin film electrodes prepared for electrochemical supercapacitor

Fugare, B. Y.; Thakur, A. V.; Kore, Rohan M.; Lokhande, B. J.

doi:10.1063/1.5029141

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…The conducting polymers are also able to store the charges using insertion and de‐insertion of ions from the electrolyte in their matrix (doping–dedoping). The conducting polymers such as PPy, PTh, and PAni are being used in pure and hybrid forms . Among these polymers, PAni due to tunable conductivity, low cost, facile synthesis, high capacitive performance, good environment stability, and interesting redox properties is preferred most .…”

Section: Introductionmentioning

confidence: 99%

“…There are different chemical methods of synthesizing the thin film electrodes. Various methods have been used for the preparation of the electrode materials, such as the solvent deficient synthesis method, chemical vapor deposition, electrodeposition, and spray pyrolysis . Among these chemical methods, chemical bath deposition (CBD) is low cost and low‐temperature, soft chemical solution method.…”

Section: Introductionmentioning

confidence: 99%

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Aqueous Route Synthesis of PAni Electrodes by Chemical Bath Deposition and Their Cyclic Voltammetric Analyses at Different Scan Rates

Thokale

Kore

Kambale

et al. 2019

Macromolecular Symposia

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The present work elaborates the aqueous route synthesis of polyaniline (PAni) electrodes for supercapacitors using chemical bath deposition (CBD) method and study of effective of scan rate on the cyclic voltammetric (CV) behavior. In the synthesis work, 1 m aniline and 1 m H2SO4 were taken in 2:2 ratio and kept for constant stirring and 1 m aqueous solution of (NH4)2S2O8 was added slowly in it. Stainless steel substrates were immersed in the reaction bath at room temperature for 1 h. The formation of PAni was confirmed by FT‐IR spectroscopic study. XRD analysis confirms the amorphous nature of the prepared PAni thin films. Contact angle study shows the hydrophilic behavior of the PAni electrodes. Obtained electrodes were subjected to cyclic voltammetric study at various scan rate from 5 to 100 mV s–1 in 1 m KOH electrolyte. Observed maximum specific capacitance was 516.34 F g–1 at 5 mV s–1 scan rate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aqueous Route Synthesis of PAni Electrodes by Chemical Bath Deposition and Their Cyclic Voltammetric Analyses at Different Scan Rates

Thokale

Kore

Kambale

et al. 2019

Macromolecular Symposia

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show abstract

“…The redox peaks seen in the curves are due to oxidation and reduction of active 5/9 https://www.doi.org/10.53964/jmpcm.2022010 sites at the electrode. The arrival of redox peaks indicates the pseudocapacitive nature of the PANI electrodes [15] . The calculated SC values for the MN 1 electrode at different scan rates are given in Table 1.…”

Section: Electrochemical Analysis 351 CV Studymentioning

confidence: 99%

“…PANI is synthesized either by chemical oxidative polymerization or electrochemically oxidative polymerization [14] . Synthesis of the PANI electrode can be done by multiple methods such as spray pyrolysis [15] , electrodeposition [16] , chemical vapour deposition [17] , and chemical bath deposition (CBD) [18] . The PANI is seen as a suitable electrode material because of its high electrical conductivity, water-soluble monomer, good environmental stability, room-temperature synthesis, good redox reversibility, and high charge storage ability [19] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Deposition Time on Electrochemical Properties of Polyaniline Samples Prepared by Chemical Bath Deposition

2022

J Mod Polym Chem Mater

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Objective: The objective of the current work is to synthesize the conducting polymer, i.e. polyaniline electrodes, with different reaction times using the chemical bath deposition (CBD) method. The further study involves its effect on structural, morphological, and electrochemical characteristics of the PANI electrodes. Methods:The CBD method is used to synthesize the PANI electrodes. The analysis of the electrodes was carried out using X-Ray diffraction, contact angle, FESEM with EDX, Fourier-transform infrared spectroscopy, and electrochemical characterizations. Results:The structural and wettability analysis confirmed the amorphous and hydrophilic properties of the PANI electrodes. The contact angle increased with an increase in the reaction time of the PANI electrodes. The morphological images of all samples showed that the thickness of the interconnected nanofibres increased with the deposition time. Electrochemical analysis of the PANI electrodes was carried out by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy. The evaluated highest value of specific capacitance (SC) by CV was 601F/g at 5mV/s in 1M KOH. GCD provided specific energy of 9.10Whg −1 , specific power of 22kW kg −1, and an efficiency of 92.89%. Conclusion:It is feasible to synthesize PANI samples with the CBD method. The physical and electrochemical properties of electrodes prepared at different deposition times change with increasing deposition times. Deposition time does not affect the amorphous nature of the sample, and the sample deposited for 60min exhibited the highest SC 601F/gm at 5mVs -1 .

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“…The major problem in using ruthenium (Ru) oxides as electrode material is its cost. Hence the attempts are made to minimize the use of Ru as a dopants or to make composites to achieve higher specific capacitance and high structural and electrochemical stability [28][29][30][31][32][33][34][35][36]. Hence in order to improve the structural stability and electrochemical performance of the PPy, addition of oxides of ruthenium could worth a shot to attempt.…”

Section: Introductionmentioning

confidence: 99%

Structural and electrochemical study of hybrid flexible electrodes containing in-situ growth of RuO2 within PPy matrix controlled by RuCl3 % consumed during SILAR synthesis for preparation of symmetric device

Thakur¹,

Pathan²,

Lokhande³

2022

ES Energy Environ.

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Pristine Polypyrrole (PPy) suffers from poor structural stability and comparatively less electrochemical durability. Ruthenium oxide has been known to provide the good structural and electrochemical stability and durable performance. Present work concentrates on the impact of addition of RuCl3 during the SILAR synthesis on the specific capacitance (SC), cycling stability and the structural stability of the ruthenium oxide (RuO2) incorporated PPy hybrid flexible electrodes (HFEs). The synthesis has been carried out by using the simple successive ionic layer adsorption and reaction (SILAR) technique using stainless steel strips as flexible substrates, 0.1M pyrrole as monomer blended with different percentages of ruthenium tri chloride (RuCl3) and 30 wt % of hydrogen peroxide (H2O2) as oxidizer and oxidative polymerizing agent. The prepared HFEs were electrochemically analyzed by cyclic voltammetry (CV), galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). The electrodes exhibit slight variation in surface morphology as the interconnected granules become small and get closely attached and then the surface is occupied with the interconnected spheres coated with PPy matrix. The observed maximum SC was found to be 1321.67 Fg -1 at 5mVs -1 in 0.2M sodium sulphate (Na2SO4). The HFE prepared with optimum concentration of ruthenium chloride (RuCl3) exhibit 86% retention of SC even after 5000 cycles. A symmetric device has been fabricated using the optimized electrodes which has SC of 71.5 Fg -1 at 18.18 Ag -1 . The device also retains 86.05 % of the SC even after 5000 cycles. The measured specific energy and power were 286.18 Whg -1+ and 36.36 Wg -1 respectively.

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Spray pyrolysed Ru:TiO2 thin film electrodes prepared for electrochemical supercapacitor

Cited by 10 publications

References 6 publications

Aqueous Route Synthesis of PAni Electrodes by Chemical Bath Deposition and Their Cyclic Voltammetric Analyses at Different Scan Rates

Aqueous Route Synthesis of PAni Electrodes by Chemical Bath Deposition and Their Cyclic Voltammetric Analyses at Different Scan Rates

Effect of Deposition Time on Electrochemical Properties of Polyaniline Samples Prepared by Chemical Bath Deposition

Structural and electrochemical study of hybrid flexible electrodes containing in-situ growth of RuO2 within PPy matrix controlled by RuCl3 % consumed during SILAR synthesis for preparation of symmetric device

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