Effect of decorating cobalt ferrite spinel structures on pistachio vera shell –derived activated carbon on energy storage applications

Elaiyappillai, Elanthamilan; Rajkumar, S.; Jona, D. Sangeeth; Monisha, K.; Meena, B. Catherin

doi:10.1016/j.electacta.2020.136953

Cited by 50 publications

(31 citation statements)

References 60 publications

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“…Distinguished by intriguing physical and chemical performances, transitional metal oxides have been the main focus of research for multiple applications. − Combinations of these oxides in stoichiometric and nonstoichiometric compositions, typically in spinel structures, have gained significant attention. Spinel phase materials, AB 2 O 4 , are fundamentally binary metal oxides where A is a divalent cation and B is a trivalent cation with repeating B 4 O 4 cores.…”

Section: Introductionmentioning

confidence: 99%

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

Sriram

Baby

Wang

et al. 2020

ACS Appl. Electron. Mater.

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Clioquinol (CQ) is a mass-produced drug with broad-spectrum antifungal and antibacterial properties. This neurodegenerative medicine has attracted significant attention in the pharmaceutical field. However, excessive administration of CQ presents neurotoxic effects that require its early detection and effective countermeasures. Electrochemical detection can be beneficial in this regard, using functional material architectures with multiple advanced features. A unique emphasis is placed on manipulating these hierarchical structures, for advanced functions, offering an impressive perspective for monitoring systems. In this paper, we report on the innovative synthesis of distinct structures of AB2O4 (AB = Zn, Co, and Mn) spinel metal oxide anchored sulfur-doped reduced graphene oxide (S-rGO) for the effective detection of CQ. Fascinatingly, unique flower-like manganese cobaltite (MCO) exhibits superior structural advantages over other spinels, and doping of S-rGO into the framework marks a significant improvement in electrochemical properties. The highly symmetrical floral architecture with straight edges and facets provides defect-rich active sites, and the dissolution of S-rGO facilitates faster electron transfer and improved surface area. A wide linear response range, low detection limit, excellent reproducibility, and stability show that this material offers an efficient electrocatalyst that reinforces the practical viability of S-rGO doped MCO spinel for analysis and monitoring of real samples. The unique structural characteristics of the synthesized electrocatalyst can further extend its functions and applications, thereby expanding its potential capabilities.

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Section: Introductionmentioning

confidence: 99%

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

Sriram

Baby

Wang

et al. 2020

ACS Appl. Electron. Mater.

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“…43 The ESR value can be measured by combining the values of R s and R ct . 14,36 The calculated resistance values were found to be 2.16 Ω, 0.73 Ω, and 2.89 Ω for R s , R ct , and ESR, respectively. The lower ESR value suggested the efficient penetration of the electrolyte ions on the surface of the electrode material, followed by improvement of the interface between electrode and electrolyte.…”

Section: Supercapacitor Measurement In Three-electrode Systemmentioning

confidence: 97%

“…In general, the intensity ratio of I D /I G indicates the degree of graphitic nature of the sample, and it was calculated to be 0.95 for Em AC, which proved that Em AC sample possessed an improved degree of graphitization and excellent electrical conductivity. 14,32 In the XRD pattern of Em AC sample (Figure 2C), the peak located at 24.5 was attributed to (0 0 2) reflections of turbostatic carbon structure, suggestive of amorphous nature of the sample with less crystalline fraction. One more important peak appeared at 43.5 with (1 0 0) diffraction could be allotted to the amorphous and disordered structure of graphitic carbon in the sample.…”

Section: Structural Analysis Of Em Acmentioning

confidence: 99%

“…The high-resolution spectrum of C 1s (Figure 3B) further deconvoluted into three peaks positioned at the binding energies of 284.9, 285.5, and 285.9 eV and were allocated to C C, C O, and C═O bonds, respectively. 14,32 Figure 3C displayed the highresolution spectrum of O 1s, which deconvoluted into three peaks located at the binding energies of 531.8, 532.6, and 533.1 eV and were assigned to C═O, C O C/ C OH, and C O bonds, respectively. 36,41 It is noteworthy to mention that, the presence of oxygen atom was helpful to increase capacitance by Faradaic behavior, combined with EDLC rendered through the carbon atom.…”

Section: Structural Analysis Of Em Acmentioning

confidence: 99%

“…2 Supercapacitors (SC) are one of the energy storage devices, which paid much attention due to their excellent pulse power supply and quick charging life, extended life time, and ease of operational condition. [14][15][16] At present, SC devices are successfully utilized in various electrical equipment and vehicles. Accretion of charges on the interface between electrode and electrolyte creates the electrical energy storage in EDLCs.…”

Section: Introductionmentioning

confidence: 99%

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A simple conversion of expired medicines into nontoxic activated carbon for energy storage applications

Elaiyappillai

Arumugam

Radha

et al. 2021

Intl J of Energy Research

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In this work, a simple, nontoxic, and eco-friendly method for recycling organic-based expired medicines into activated carbon was proposed. The formation, structural, and morphological features of the sample were proved by different physico-chemical tools such as Fourier transform infrared, Raman, X-ray diffraction, Brunauer-Emmett-Teller, thermogravimetric analysis, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, and transmission electron microscopy analysis. Further, expired medicine-derived activated carbon (Em AC) was used as electrode material for supercapacitor devices, and its biocompatibility was studied. The cyclic voltammetry and galvanostatic charge-discharge measurement electrochemical impedance spectroscopic analysis were used to investigate the electrochemical properties of the fabricated Em AC@Ni foil electrode. The as-fabricated electrode delivered specific capacitance (C sp ) value of 480 F/g at the current density of 1 A/g. Also, the electrode exhibited superior cyclic stability and maintained 88% of its capacitance value upto the completion of 8000 GCD cycles at the current density of 2 A/g. Further, Em AC-based symmetric device achieved the energy density of 28.33 Wh kg À1 at the power density of 666.01 W kg À1 . Hence, the porous Em AC sample was identified as the promising electrode material for future energy storage devices without distracting any damage to the biological system.

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Nanoarchitectured transition metal oxides and their composites for supercapacitors

Kumar

Rathore

Sarkar

et al. 2021

Electrochemical Science Adv

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Supercapacitors have acquired a considerable scientific and technological position in the energy storage field owing to their compelling power capability, good energy density, excellent cycling stability, and ideal safety. The supercapacitor is the burgeoning candidate to cope with the ever-growing need for green and renewable energy. High-performance supercapacitors are realized by nanostructured electrode designs, which provide ameliorated surface area for abundant electrode-electrolyte interaction, ease of electron transfer and movement, and short ion-diffusion pathways that lead to increased performance. In this regard, transition metal oxide (TMO)-based electroactive materials are of significant interest owing to the remarkable combination of structural, mechanical, electrical, and electrochemical properties. Besides their high specific capacitance and energy density due to rich redox chemistry, highly reversible and fast charge-discharge processes, low cost due to abundance, and environmentfriendliness make them the most promising materials for next-generation supercapacitors. But poor electrical conductivity and rate capability, inferior cycling life, and low power density are some of the major challenges that need to be addressed. Therefore, various nanostructures of pristine TMOs and their composites with other materials with complementary characteristics have been fabricated and investigated to realize supercapacitors with improved performance.This review summarizes all such reported pristine TMOs with different nanostructured dimensions namely, 3D, 2D, 1D, and 0D, and their composite structures for their application as electrode materials in supercapacitors. Design of different pristine and composite nanostructures, synthesis strategies, comprehensive structure-dependent electrochemical properties, present challenges, and future perspectives are reviewed.

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Effect of decorating cobalt ferrite spinel structures on pistachio vera shell –derived activated carbon on energy storage applications

Cited by 50 publications

References 60 publications

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

A simple conversion of expired medicines into nontoxic activated carbon for energy storage applications

Nanoarchitectured transition metal oxides and their composites for supercapacitors

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Effect of decorating cobalt ferrite spinel structures on pistachio vera shell –derived activated carbon on energy storage applications

Cited by 50 publications

References 60 publications

Surface Engineering of Three-Dimensional-like Hybrid AB2O4 (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

Surface Engineering of Three-Dimensional-like Hybrid AB2O4 (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

A simple conversion of expired medicines into nontoxic activated carbon for energy storage applications

Nanoarchitectured transition metal oxides and their composites for supercapacitors

Contact Info

Product

Resources

About

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection

Surface Engineering of Three-Dimensional-like Hybrid AB₂O₄ (AB = Zn, Co, and Mn) Wrapped on Sulfur-Doped Reduced Graphene Oxide: Investigation of the Role of an Electrocatalyst for Clioquinol Detection