A robust solvent deficient route synthesis of mesoporous Fe2O3 nanoparticles as supercapacitor electrode material with improved capacitive performance

Kore, Rohan M.; Lokhande, B. J.

doi:10.1016/j.jallcom.2017.07.145

Cited by 46 publications

(11 citation statements)

References 52 publications

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“…High cost, less abundance, and toxic nature have limited the commercial use of RuO 2 . The researchers have been trying to use oxides of manganese, nickel, cobalt, vanadium, copper, and iron as electrode materials. 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).…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19] [20] 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, [7] chemical vapor deposition, [8] electrodeposition, [9] and spray pyrolysis. [10] 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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“…The sharp shape of the diffraction peaks reveals the samples possess high crystallinity. Based on these XRD patterns, the crystallite size of the Fe 2 O 3 nanoparticles is determined using Scherrer’s relation [ 41 ]. The average size of Fe 2 O 3 in the sample of α-Fe 2 O 3 , FPC-90, and FPC-180 turns out to be about 13, 19, and 32 nm, respectively, consistent with the SEM and TEM results.…”

Section: Resultsmentioning

confidence: 99%

Fe2O3/Porous Carbon Composite Derived from Oily Sludge Waste as an Advanced Anode Material for Supercapacitor Application

et al. 2022

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It is urgent to improve the electrochemical performance of anode for supercapacitors. Herein, we successfully prepare Fe2O3/porous carbon composite materials (FPC) through hydrothermal strategies by using oily sludge waste. The hierarchical porous carbon (HPC) substrate and fine loading of Fe2O3 nanorods are all important for the electrochemical performance. The HPC substrate could not only promote the surface capacitance effect but also improve the utilization efficiency of Fe2O3 to enhance the pseudo-capacitance. The smaller and uniform Fe2O3 loading is also beneficial to optimize the pore structure of the electrode and enlarge the interface for faradaic reactions. The as-prepared FPC shows a high specific capacitance of 465 F g−1 at 0.5 A g−1, good rate capability of 66.5% retention at 20 A g−1, and long cycling stability of 88.4% retention at 5 A g−1 after 4000 cycles. In addition, an asymmetric supercapacitor device (ASC) constructed with FPC as the anode and MnO2/porous carbon composite (MPC) as the cathode shows an excellent power density of 72.3 W h kg−1 at the corresponding power density of 500 W kg−1 with long-term cycling stability. Owing to the outstanding electrochemical characteristics and cycling performance, the associated materials’ design concept from oily sludge waste has large potential in energy storage applications and environmental protection.

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“…Currently, developments in SC manufacturing technology have increased the capacity and power density of the materials. Kore et al [101a] . synthesized Fe 2 O 3 based mp‐NPs electrode material using Fe(NO 3 ) 3 ⋅ 9H 2 O and NH 4 HCO 3 precursors through a robust solvent‐deficient route, that demonstrated improved capacitive performance.…”

Section: Energy Storage Using Mp‐fenssmentioning

confidence: 99%

Fe‐Based Mesoporous Nanostructures for Electrochemical Conversion and Storage of Energy

Tufa

Gicha

et al. 2020

Batteries & Supercaps

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Decarbonization of the global energy system requires a coordinated effort towards disruptive technology of renewable energy conversion and storage (ECS) that can be potential to secure and diversify energy systems by increasing efficiency of conversion and storage of intermittent energy sources. Porous nanostructures have been newly reported as a promising class of most effective materials for this purpose because of their unique advantages in terms of large surface‐to‐volume ratios, surface permeability, and void spaces. These offer abundant active sites for ultimate electrochemical activities by the shortening pathway of mass/charge transport. Particularly, Fe‐based mesoporous nanostructures (mp‐FeNSs) have been recently fascinating. Iron is a principal active center in nanocomposites and has high industrial suitability for next‐generation technology owing to its environment friendliness, abundance, and low cost. In this review, crucial technical advances related to mp‐FeNSs that have occurred during 2016–2020 are summarized in terms of synthesis, structural design strategy, and ECS applications such as water electrocatalysis, Li‐ion batteries, and supercapacitors. This review is supportive for potential readers to obtain general and professional information in this field since Fe‐based energy materials are exclusively introduced in the article including a fundamental understanding of electrochemistry and related technologies in detail.

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A robust solvent deficient route synthesis of mesoporous Fe2O3 nanoparticles as supercapacitor electrode material with improved capacitive performance

Cited by 46 publications

References 52 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

Fe2O3/Porous Carbon Composite Derived from Oily Sludge Waste as an Advanced Anode Material for Supercapacitor Application

Fe‐Based Mesoporous Nanostructures for Electrochemical Conversion and Storage of Energy

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