Development of Binder Free Interconnected 3D Flower of NiZn2O4 as an Advanced Electrode Materials for Supercapacitor Applications

The design and development of electrode materials for energy-storage applications is an area of prime focus around the globe because of the shortage of natural resources. In this study, we developed a method for preparing a novel three-dimensional binder-free pseudocapacitive NiZn2O4 active material, which was grown directly over nickel foam (NiZn2O4@3D-NF), using a simple one-step hydrothermal process. The material was characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy techniques were employed to evaluate the pseudocapacitive performance of the NiZn2O4 active material in a three-electrode assembly cell. The prepared NiZn2O4@3D-NF electrode exhibited an excellent specific capacitance, of 1706.25 F/g, compared to that of the NiO@3D-NF (1050 F/g) electrode because it has the bimetallic characteristics of both zinc and nickel. The NiZn2O4@3D-NF electrode showed better cyclic stability (87.5% retention) compared to the NiO@3D-NF electrode (80% retention) after 5000 cycles at a fixed current density, which also supports the durability of the NiZn2O4@3D-NF electrode. The characteristics of NiZn2O4@3D-NF include corrosion resistance, high conductivity, an abundance of active sites for electrochemical reaction, a high surface area, and synergism between the bimetallic oxides, which make it a suitable candidate for potential application in the field of energy storage.

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Investigation of the Electrochemical Properties of Ni0.5Zn0.5Fe2O4 as Binder-Based and Binder-Free Electrodes of Supercapacitors

Energies ◽

10.3390/en14113297 ◽

2021 ◽

Vol 14 (11) ◽

pp. 3297

Author(s):

Bushra Nawaz ◽

Ghulam Ali ◽

Muhammad Obaid Ullah ◽

Sarish Rehman ◽

Fazal Abbas

Keyword(s):

Electron Microscopy ◽

Electrochemical Properties ◽

Current Density ◽

Electrochemical Impedance ◽

Nickel Foam ◽

Specific Capacity ◽

X Ray Diffraction ◽

Transmission Electron ◽

Binder Free ◽

Interconnected Structure

In this work, Ni0.5Zn0.5Fe2O4 is synthesized as binder-based (NZF) and binder-free electrodes (NZF@NF). The binder-free electrode is directly synthesized on nickel foam via facile hydrothermal techniques. The crystalline phase of both of these electrodes is examined through X-ray diffraction. Their morphology is investigated by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (TEM), which revealed the well-defined nanostructure with the shape like thin hexagonal platelets. The chemical composition is verified by energy dispersive spectroscopy (EDS). Their electrochemical properties are analyzed by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The NZF@NF electrode has outperformed the binder-based NZF electrode in terms of electrochemical performance owing to the 3D interconnected structure of the nickel foam. The NZF@NF electrode has delivered a high specific capacity of 504 F g−1 at the current density of 1 A g−1, while its counterpart has delivered a specific capacity of 151 F g−1 at the same current density.

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Evolution of Waste Iron Rust into α-Fe2O3/CNF and α-Fe2O3/PANI Composites as an Efficient Positive Electrode for Sustainable Hybrid Super-capacitor

10.21203/rs.3.rs-202258/v1 ◽

2021 ◽

Author(s):

Darpan Vijaykumar Bhuse ◽

Vijaykumar M Bhuse ◽

Ramdas G Atram ◽

Rounak R Atram ◽

Subhash B Kondawar

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Active Sites ◽

Electrode Materials ◽

Electrochemical Impedance ◽

Potential Candidate ◽

Hybrid Supercapacitor ◽

Supercapacitor Electrode ◽

X Ray ◽

Transmission Electron

Abstract A green and sustainable approach to recycle the waste iron rust into a valuable α modification of Fe2O3 via simple grinding and calcination for application in hybrid supercapacitor is reported. The α-Fe2O3 was coupled with conducting polymer carbon nanofibers (CNF) and Poly aniline (PANI) to form composite hybrid supercapacitor electrode materials. The conventional hydrothermal, electro-spinning processes were used to prepare composites. X-ray diffraction, Transmission Electron Microscopy (TEM), High Resolution Transmission Electron Microscopy (HRTEM), Selected Area Electron Diffraction (SAED), Scanning Electron Microscopy and Energy Dispersive X-Ray spectroscopy were used to study the structural, morphological and compositional properties of as synthesised α-Fe2O3 and its composites with CNF and PANI. The α-Fe2O3/CNF and α-Fe2O3/PANI composites coated on carbon rod were used as electrodes in a three-electrode system to study Electrochemical Impedance Spectroscopy, Cyclic Voltammetry and Galvanostatic Charge-Discharge in 1M H2SO4. It is observed that α-Fe2O3/PANI exhibit higher response as against α-Fe2O3/CNF with respect to specific capacitance; 192.29 Fg-1 (88.88 Fg-1), energy density; 11.28 WhKg-1 (3.084 WhKg-1) power density; 162.44Wkg-1 (69.39 Wkg-1) with capacitance retention of 80% (75%). The heavy dispersion of α-Fe2O3 over long CNF and PANI fibres with intimate contact resulted in abundant active sites for electrochemical reactions leading to obtained result. The rust derived α-Fe2O3 with PANI offer excellent stability to act as potential candidate for sustainable hybrid supercapacitor application.

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Metal-organic-framework derived hollow manganese nickel selenide spheres confined with nanosheets on nickel foam for hybrid supercapacitors

Dalton Transactions ◽

10.1039/d1dt01215k ◽

2021 ◽

Author(s):

Bahareh ameri ◽

Akbar Mohammadi Zardkhoshoui ◽

Saied Saeed Hosseiny Davarani

Keyword(s):

Active Sites ◽

Nickel Foam ◽

Metal Organic Framework ◽

High Surface ◽

Metal Organic Frameworks ◽

High Surface Area ◽

Supercapacitive Performance ◽

Hybrid Supercapacitors ◽

Porous Networks ◽

Metal Organic

Metal-organic frameworks (MOFs) derived nanoarchitectures have special features, such as high surface area (SA), abundant active sites, exclusive porous networks, and remarkable supercapacitive performance when compared to traditional nanoarchitectures. Herein,...

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The growth and assembly of the multidimensional hierarchical Ni3S2 for aqueous asymmetric supercapacitors

CrystEngComm ◽

10.1039/c4ce02558j ◽

2015 ◽

Vol 17 (24) ◽

pp. 4495-4501 ◽

Cited By ~ 33

Author(s):

Bin Yang ◽

Lei Yu ◽

Qi Liu ◽

Jingyuan Liu ◽

Wanlu Yang ◽

...

Keyword(s):

Thin Film ◽

Energy Storage ◽

High Performance ◽

Electrode Materials ◽

Hydrothermal Process ◽

Nanorod Arrays ◽

Asymmetric Supercapacitors ◽

One Step ◽

Step Growth

We synthesized the mushroom-like Ni3S2 with step by step growth that is the thin film growing on the nanorod arrays with one-step hydrothermal process, which is a novel ways to fabricate the multidimensional hierarchical electrode materials for high performance energy storage.

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High-Capacity Derivatives Produced from Hydrolytic Lignin as Electrode Materials for Energy Storage and Conversion

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.386.359 ◽

2018 ◽

Vol 386 ◽

pp. 359-364

Author(s):

Yury M. Nikolenko ◽

Denis P. Opra ◽

Alexander K. Tsvetnikov ◽

Alexander Yu. Ustinov ◽

Valery G. Kuryavyi ◽

...

Keyword(s):

Electron Microscopy ◽

Energy Storage ◽

Electrode Materials ◽

Electronic Conductivity ◽

Specific Capacity ◽

Energy Storage And Conversion ◽

Operating Voltage ◽

X Ray ◽

Thermally Activated ◽

Hydrolytic Lignin

The hydrolytic lignin derivatives have been prepared via its physical activation (high-temperature heating in vacuum) followed by chemical modification (fluorination). The obtained products were characterized using scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. It was found that the graphitized product of thermal activation up to 1000 °C at a low rate of < 2 °C/min under high vacuum shows an enhanced specific surface area (215 m2/g), that makes its potentially useful as sorbent, catalytic substrate or electrode material. To clarify the potentialities of hydrolytic lignin derivatives for energy storage and conversion, the electrochemical system with metallic lithium anode was applied. The galvanostatic discharge of battery at a current density of 100 μA/cm2between 3.0 and 0.5 V shows that the specific capacity of thermally activated derivative is equal to 845 mA·h/g, while the untreated lignin yields only 190 mA·h/g. The improve of the electrochemical performance of product originates from its graphitization, increasing electronic conductivity, and, possibly, enhanced ability to adsorb of oxygen. The fluorination of both the lignin and its thermally activated form results in higher operating voltage of battery, as seems, due to the involvement of fluorine bound to carbon in electrochemical process.

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Recent Advances on the Application of Graphene Quantum Dots in Energy Storage

Recent Patents on Nanotechnology ◽

10.2174/1872210515666210120115159 ◽

2021 ◽

Vol 15 ◽

Author(s):

Feng Shi ◽

Quanrun Liu

Keyword(s):

Quantum Dots ◽

Energy Storage ◽

Potential Application ◽

Active Sites ◽

Electrode Materials ◽

Specific Capacity ◽

Graphene Quantum Dots ◽

Energy Storage Devices ◽

Storage Devices ◽

New Energy

Background: As an emerging carbon nanomaterial, graphene quantum dots (GQDs) have shown great potential application in new energy storage devices due to their unique small size effect and abundant edge active sites. This work introduces the main synthesis strategies of GQDs, which includes top-down and bottom-up methods; the application examples of GQDs and GQDs-based composites in energy storage are reviewed, and more, the unique advantages of GQDs are used in supercapacitors, Lithium-ion batteries (LIBs) and Lithium-sulfur batteries (Li–S batteries) are highlighted. The problems and development prospects in this growing area are also discussed. Method: We conducted a detailed search of “the application of GQDs in energy storage devices” in the published papers and the public patents based on Web of Science database in the period from 2014 to 2020. The corresponding literature was carefully evaluated and analyzed. Results: Sixty papers and twenty-eight recent patents were included in this mini-review. The significant advances in the recent years are summarized with comparative and balanced discussion. Thanks to the unique properties of large specific surface area, high conductivity and abundant active sites, GQDs have unparalleled potential application for new energy storage, especially improving the specific capacity and cycle stability of supercapacitors, LIBs and Li-S batteries. Conclusion: The findings of this mini-review confirm the importance of GQDs, show the enhanced electrochemical performance in supercapacitors, LIBs and Li-S batteries, and also provide a helpful guide to design and fabricate highefficiency electrode materials.

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Investigations and improvement of Nickel Sulfide modified electrode material from single source precursor for energy storage application

10.21203/rs.3.rs-337520/v1 ◽

2021 ◽

Author(s):

C. Sambathkumar ◽

R. Ranjithkumar ◽

S. Ezhil Arasi ◽

A. Manikandan ◽

N. Nallamuthu ◽

...

Keyword(s):

Electron Microscopy ◽

Energy Storage ◽

Nickel Sulfide ◽

Electrode Materials ◽

High Energy ◽

Attractive Potential ◽

Single Source ◽

Thermo Gravimetric ◽

Single Source Precursor ◽

Charge Discharge

Abstract High-performance energy storage electrode materials are emerging demand in near future for the construction of supercapacitor with high energy and power densities. Herein, Nickel (II) Diethyldithiocarbamate was used as single source precursor for Nickel Sulfide (Ni9S8) two dimensional (2D) nanosheets preparation and hexadecylamine as shape directing agent via simple solvothermal method. The orthorhombic structure of Ni9S8 nanosheets was confirmed by X-ray diffraction (XRD) pattern. Scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) images revealed that as-prepared Ni9S8 nanoparticles possess sheet-like morphology. Besides, the thermal stability of Ni(DTC)2 complex was studied by Thermo-gravimetric/Derivative thermo gravimetric(TG/DTG) with Differential scanning calorimetric (DSC) analysis. The electrochemical properties of Ni9S8 nanosheets was studied using galvanostatic charge-discharge (GCD) and cyclic voltammetry (CV) techniques. From the charge-discharge study of Ni9S8 nanosheets, a high specific capacitance of 281 Fg− 1 was obtained at a current density of 1 Ag− 1, and up to 82 % retentivity was achieved after 5000 cycles. Thus, the prepared Ni9S8 nanosheets could be one of the attractive potential active electrode materials for the application of supercapacitor.

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Nanostructured oxides for energy storage applications in batteries and supercapacitors

Pure and Applied Chemistry ◽

10.1351/pac-con-08-08-20 ◽

2009 ◽

Vol 81 (8) ◽

pp. 1489-1498 ◽

Cited By ~ 20

Author(s):

Amreesh Chandra ◽

Alexander J. Roberts ◽

Eric Lam How Yee ◽

Robert C. T. Slade

Keyword(s):

Electron Microscopy ◽

Energy Storage ◽

Specific Capacitance ◽

Electrode Materials ◽

Particle Morphology ◽

Hydrothermal Route ◽

Conductivity Enhancement ◽

Surface Areas ◽

Transmission Electron

Nanostructured materials are extensively investigated for application in energy storage and power generation devices. This paper deals with the synthesis and characterization of nanomaterials based on oxides of vanadium and with their application as electrode materials for energy storage systems viz. supercapacitors. These nano-oxides have been synthesized using a hydrothermal route in the presence of templates: 1-hexadecylamine, Tweens and Brij types. Using templates during synthesis enables tailoring of the particle morphology and physical characteristics of synthesized powders. Broad X-ray diffraction peaks show the formation of nanoparticles, confirmed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) investigations. SEM studies show that a large range of nanostructures such as needles, fibers, particles, etc. can be synthesized. These particles have varying surface areas and electrical conductivity. Enhancement of surface area as much as seven times relative to surface areas of starting parent materials has been observed. These properties make such materials ideal candidates for application as electrode materials in supercapacitors. Assembly and characterization of supercapacitors based on electrodes containing these active nano-oxides are discussed. Specific capacitance of >100 F g–1 has been observed. The specific capacitance decreases with cycling: causes of this phenomenon are presented.

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Nanohollow Carbon for Rechargeable Batteries: Ongoing Progresses and Challenges

Nano-Micro Letters ◽

10.1007/s40820-020-00521-2 ◽

2020 ◽

Vol 12 (1) ◽

Author(s):

Jiangmin Jiang ◽

Guangdi Nie ◽

Ping Nie ◽

Zhiwei Li ◽

Zhenghui Pan ◽

...

Keyword(s):

Electrochemical Performance ◽

Carbon Nanostructures ◽

Active Sites ◽

Electrode Materials ◽

Mechanical Stability ◽

High Surface ◽

Specific Capacity ◽

Rate Capability ◽

Lithium Ion ◽

Rechargeable Batteries

AbstractAmong the various morphologies of carbon-based materials, hollow carbon nanostructures are of particular interest for energy storage. They have been widely investigated as electrode materials in different types of rechargeable batteries, owing to their high surface areas in association with the high surface-to-volume ratios, controllable pores and pore size distribution, high electrical conductivity, and excellent chemical and mechanical stability, which are beneficial for providing active sites, accelerating electrons/ions transfer, interacting with electrolytes, and giving rise to high specific capacity, rate capability, cycling ability, and overall electrochemical performance. In this overview, we look into the ongoing progresses that are being made with the nanohollow carbon materials, including nanospheres, nanopolyhedrons, and nanofibers, in relation to their applications in the main types of rechargeable batteries. The design and synthesis strategies for them and their electrochemical performance in rechargeable batteries, including lithium-ion batteries, sodium-ion batteries, potassium-ion batteries, and lithium–sulfur batteries are comprehensively reviewed and discussed, together with the challenges being faced and perspectives for them.

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Review on Carbon/Polyaniline Hybrids: Design and Synthesis for Supercapacitor

Molecules ◽

10.3390/molecules24122263 ◽

2019 ◽

Vol 24 (12) ◽

pp. 2263 ◽

Cited By ~ 22

Author(s):

Xiaoning Wang ◽

Dan Wu ◽

Xinhui Song ◽

Wei Du ◽

Xiangjin Zhao ◽

...

Keyword(s):

Energy Storage ◽

Hybrid Materials ◽

Active Sites ◽

High Performance ◽

Electrode Materials ◽

Carbon Materials ◽

Low Cost ◽

Specific Capacity ◽

Chemical Properties ◽

Combine Carbon

Polyaniline has been widely used in high-performance pseudocapacitors, due to its low cost, easy synthesis, and high theoretical specific capacitance. However, the poor mechanical properties of polyaniline restrict its further development. Compared with polyaniline, functionalized carbon materials have excellent physical and chemical properties, such as porous structures, excellent specific surface area, good conductivity, and accessibility to active sites. However, it should not be neglected that the specific capacity of carbon materials is usually unsatisfactory. There is an effective strategy to combine carbon materials with polyaniline by a hybridization approach to achieve a positive synergistic effect. After that, the energy storage performance of carbon/polyaniline hybridization material has been significantly improved, making it a promising and important electrode material for supercapacitors. To date, significant progress has been made in the synthesis of various carbon/polyaniline binary composite electrode materials. In this review, the corresponding properties and applications of polyaniline and carbon hybrid materials in the energy storage field are briefly reviewed. According to the classification of different types of functionalized carbon materials, this article focuses on the recent progress in carbon/polyaniline hybrid materials, and further analyzes their corresponding properties to provide guidance for the design, synthesis, and component optimization for high-performance supercapacitors.

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