One-step electrochemical preparation and characterization of nanostructured hydrohausmannite as electrode material for supercapacitors

Aghazadeh, Mustafa; Maragheh, Mohammad Ghannadi; Ganjali, Mohammad Reza; Norouzi, Parviz

doi:10.1039/c5ra20498d

Cited by 35 publications

(8 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…27 Therefore, the performance of MOs as supercapacitor electrodes is dominated by a specific surface area 27 and for this reason, nanostructured MOs are usually used as supercapacitor electrodes. Nanostructured electrodes can be prepared by different methods, for example, chemical and electrochemical methods, 18,28 electrophoretic deposition, 29 physical vapor deposition 30 sol-gel methods, 31,32 hydrothermal methods 33 and successive ionic layer adsorption and reaction methods. 34,35 Pulsed laser deposition (PLD) in the presence of a buffer gas has been reported as a versatile tool for fabricating nanoparticles and other nanostructures with controlled size.…”

Section: Introductionmentioning

confidence: 99%

Tuning the morphology of manganese oxide nanostructures for obtaining both high gravimetric and volumetric capacitance

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Tuning the morphology of manganese oxide nanostructures for obtaining both high gravimetric and volumetric capacitance

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The original capacitance of pseudocapacitors is based on electrochemically active compounds via fast faradic redox reaction and a lots of material have been used in construction of pseudocapacitors in recent years . Among them, various metal oxides have been used as supercapacitor active substances and in this family, binary oxides such as metal tungstate have attracted particular attention and a lot of research have been conducted in different field.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Supercapacitor Application of Cerium Tungstate Nanostructure

et al. 2019

View full text Add to dashboard Cite

Cerium tungstate nanostructure was prepared through precipitation and characterized using field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS) and Fourier transform infrared spectroscopy (FTIR), as well as cyclic voltammetry (CV), galvanostatic charge-discharge, electrochemical impedance spectroscopy (EIS) and continuous cyclic voltammetry (CCV) in terms of structural and electrochemical properties. The electrochemical evaluations using cerium tungstate electrodes revealed that the electrode material has interesting supercapacitive properties including a specific capacitance (SC) of 348 F g À 1 at a potential scan rate of 2 mV s À 1 . Also CCV experiments proved that the material maintains 95.8% of its original capacitance after 4000 cycles. The properties make the nanostructures suitable for use as high-quality electroactive materials for supercapacitor applications.

show abstract

“…Nevertheless, graphene sheets easily restack, reducing their surface area available for energy storage and, therefore, restricting their utilization in high energy density supercapacitors. [12][13][14][15][16] The second one is known as pseudo-capacitor or redox supercapacitor, in which the charges are stored through rapid reversible redox reaction of electroactive species taking place on the interface between the electrode material and the electrolyte, consisting of metal oxides such as MnO x [18] and Fe 3 O 4 , [19] hydroxides such as Ni(OH) 2 , [20] chalcogenides such as MoS 2 , [21] and conductive polymers. [3,12,22] In contrast to the reactions carried out in batteries, including bulk electrode materials, surface redox reactions (pseudocapacitive reactions associated with metal oxides) merely takes place on the nearsurface region.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Pseudocapacitors Based on Ternary Nanocomposite of Conductive Polymer/Graphene/Metal Oxide: An Introduction and Review to it in Recent Studies

Ehsani

Heidari

Shiri

2018

The Chemical Record

View full text Add to dashboard Cite

This review gives an overview of the synthesis, surface and electrochemical investigations over ternary nanocomposite of conductive polymers in the development of new supercapacitors. They utilize both Faradaic and non‐Faradaic procedures to store charge, leading to higher specific capacitance and energy density, higher cell voltage, longer life cycle and moderated power density. Owing to a unique combination of features such as superb electrical conductivity, corrosion resistance in aqueous electrolytes, highly modifiable nanostructures, long cycle life and the large theoretical specific‐surface area, the use of ternary nanocomposites as a supercapacitor electrode material has become the focus of a significant amount of current scientific researches in the field of energy storage devices. In these nanocomposites, graphene not only can be utilized to provide a substrate for growing nanostructured polymers in a polymer‐carbon nanocomposite structure in order to overcome the insulating nature of conductive polymers at dedoped states, but also is capable of providing a platform for the decoration of metal oxide nanoparticles to avoid their agglomeration. In this regard, synthesis, characterization and performance of different ternary nanocomposites of conductive polymer/graphene/metal oxide are discussed in detail. These remarkable results demonstrate the exciting commercial potential for high performance, environmentally friendly and low‐cost electrical energy storage devices based on ternary nanocomposite of conductive polymer/graphene/metal oxide.

show abstract

One-step electrochemical preparation and characterization of nanostructured hydrohausmannite as electrode material for supercapacitors

Abstract: A novel, simple one-pot electrochemical procedure is proposed for the preparation of hydrohausmannite.

Cited by 35 publications

References 37 publications

Tuning the morphology of manganese oxide nanostructures for obtaining both high gravimetric and volumetric capacitance

Tuning the morphology of manganese oxide nanostructures for obtaining both high gravimetric and volumetric capacitance

Synthesis and Supercapacitor Application of Cerium Tungstate Nanostructure

Electrochemical Pseudocapacitors Based on Ternary Nanocomposite of Conductive Polymer/Graphene/Metal Oxide: An Introduction and Review to it in Recent Studies

Contact Info

Product

Resources

About