Chemical synthesis of Co and Mn co-doped NiO nanocrystalline materials as high-performance electrode materials for potential application in supercapacitors

Srikesh, G.; Nesaraj, A. Samson

doi:10.1016/j.ceramint.2015.12.013

Cited by 55 publications

(13 citation statements)

References 26 publications

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“…Electrochemical studies were used to determine the potential of BiPO 4 as a suitable material for supercapacitor applications. Cyclic voltammetry (CV) studies are a powerful tool to identify the nature of electrochemical reactions, whether a Faradaic or non-Faradaic reaction occurs at the electrode/electrolyte interfaces [16,17]. The CV studies were performed in a 2 M KOH electrolyte solution in the potential range from 0.2 V to −1.4 V. The CV curves of the BiPO 4 nanoparticles at various scan rates (5-100 mV s −1 ) are represented in Fig.…”

Section: Resultsmentioning

confidence: 99%

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Vadivel

Maruthamani

Kumaravel

et al. 2017

Journal of Taibah University for Science

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BiPO 4 nanomaterial was synthesized using EDTA (ethylene diamine tetra acetic acid) as the surfactant via a simple microwave method. The structure and morphology of BiPO 4 were systematically characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (FE-SEM) studies. The obtained BiPO 4 nanoparticles were, on average, 150-300 nm. The electrochemical results showed that the specific capacitance of BiPO 4 obtained using the microwave route was up to 104 Fg −1 at a current density of 1 Ag −1 with a large potential window of 1.7 V. The material showed excellent cycling stability (92% capacitance retention) after 500 cycles at a current density of 1 Ag −1 .

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Section: Resultsmentioning

confidence: 99%

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Vadivel

Maruthamani

Kumaravel

et al. 2017

Journal of Taibah University for Science

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“…The performance of supercapacitors is mainly dependent upon the physical and chemical behaviour of the electrolytes and electrode materials . Over the past few decades, numerous transition metal compounds such as metal oxides, hydroxides, and phosphates have been identified as efficient materials for pseudocapacitor. Among these pseudocapacitive electrode materials, RuO 2 is most widely examined as favourable electrode materials for the pseudocapacitors applications due to its exceptional reversibility, high energy density and specific capacitance.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Hierarchical Cobalt Phosphate Nanoflakes and Their Enhanced Electrochemical Performances for Supercapacitor Applications

et al. 2017

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Hierarchical structured cobalt phosphate (Co 3 (PO 4 ) 2 ) nanoflakes were synthesized by simple co-precipitation method and employed as electrodes for supercapacitor. The purity and phase formation of the synthesized (Co 3 (PO 4 ) 2 ) nanoflakes were ascertained by XRD and XPS measurements. The surface morphology and elemental composition of the Co 3 (PO 4 ) 2 nanoflakes were observed by using FE-SEM, TEM and EDS. The electrochemical behaviour of the present material as an anode material for supercapacitor was explored by cyclic voltammetric measurements and galvanostatic charge-discharge analysis. The specific capacitance for the as-synthesized and calcined (Co 3 (PO 4 ) 2 ) nanoflakes electrodes was 132 and 210 Fg À1 at a scan rate of 10 mV s À1 . The enhanced electrochemical behaviour of the calcined Co 3 (PO 4 ) 2 nanoflakes might be due to its well crystalline nature which offers more active sites for faradaic reactions, good conductivity and rapid diffusion of the electrolyte ions. The fabricated Co 3 (PO 4 ) 2 electrode displayed an excellent cyclic stability with 95 % retention of initial specific capacitance after 800 cycles. An enhanced effect on the electrochemical properties of the Co 3 (PO 4 ) 2 nanoflakes has been proposed.

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“…In our earlier work, we synthesized Co and Mn codoped NiO nanocrystalline materials as electrode materials by chemical synthesis route. Ni 0.95 Co 0.025 Mn 0.025 O 1−δ showed a specific capacitance of 673.33 F g −1 at a current density of 0.5 A g −1 [19]. Ce-doped NiO nanoflakes were synthesized by sol-gel method and they exhibited a specific capacitance of 2444 F g −1 which is three times that of the pure NiO materials [20].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation and characterization of novel manganese doped nickel oxide based nanostructured electrode materials for application in electrochemical supercapacitors

Srikesh

Nesaraj

2020

Journal of Asian Ceramic Societies

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Mn doped NiO nanostructured materials with composition Ni 1-x Mn x O 1-δ (where x = 0.01, 0.03, 0.05, 0.07, 0.09) (MNO) were prepared by simple facile chemical synthesis route. The structural, particulate and microstructural characteristics of the Mn-doped NiO nanostructures were studied by studied by XRD, FTIR, particle size analysis, EDAX, SEM and HRTEM techniques. The XRD peaks of all the materials were indexed to the face-centred cubic (FCC) crystalline structure. FTIR spectra revealed the presence of NiO bending vibration mode between 432.07 to 492.83 cm-1. Particle size patterns and SEM photographs confirmed the presence of nanosized grains apart from few bigger sized grains. The diameter of grains was mostly found to be in the range of 30.04 to 591.16 nm. Presence of appropriate composition of elements was confirmed by EDAX data. Polycrystalline behaviour of Ni 0.95 Mn 0.05 O 1-δ was exhibited by HRTEM data. The electrochemical phenomena of Ni 1-x Mn x O 1-δ were studied by cyclic voltammetry (CV), galvanostatic charge-discharge and electrochemical impedance measurements in 6 M KOH aqueous solution. Among the samples studied, Ni 0.95 Mn 0.05 O 1-δ electrode exhibited maximum specific capacitance of 369.6 Fg-1 at a current density of 0.5 Ag-1. From the characterization data, Mn-doped NiO nanostructures appear to be the good electrode materials for electrochemical supercapacitor applications.

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Chemical synthesis of Co and Mn co-doped NiO nanocrystalline materials as high-performance electrode materials for potential application in supercapacitors

Cited by 55 publications

References 26 publications

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Synthesis of Hierarchical Cobalt Phosphate Nanoflakes and Their Enhanced Electrochemical Performances for Supercapacitor Applications

Facile preparation and characterization of novel manganese doped nickel oxide based nanostructured electrode materials for application in electrochemical supercapacitors

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Chemical synthesis of Co and Mn co-doped NiO nanocrystalline materials as high-performance electrode materials for potential application in supercapacitors

Cited by 55 publications

References 26 publications

Supercapacitors studies on BiPO4 nanoparticles synthesized via a simple microwave approach

Supercapacitors studies on BiPO4 nanoparticles synthesized via a simple microwave approach

Synthesis of Hierarchical Cobalt Phosphate Nanoflakes and Their Enhanced Electrochemical Performances for Supercapacitor Applications

Facile preparation and characterization of novel manganese doped nickel oxide based nanostructured electrode materials for application in electrochemical supercapacitors

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Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach