Iron oxide-based nanomaterials for supercapacitors

Xu, Bingyan; Zheng, Mingbo; Tang, Hao; Chen, Zixia; Yao, Chunde; Wang, Lei; Lan, Zhang; Chen, Yiyi; Pang, Huan

doi:10.1088/1361-6528/ab009f

Cited by 51 publications

(23 citation statements)

References 173 publications

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“…Because these materials are primarily distinguished by their crystal dimensions, surface characteristics, defect chemistries, morphologies, and textures, research should be conducted to determine how these properties impact the development of rationally designed SC electrode materials to enhance the electrode’s electrochemical performance. To optimize SC electrodes, a novel synthesis method is required, and hydrothermal synthesis is the most effective method for preparing 0-, 1-, and 2-D and other promising iron oxide/hydroxide hierarchical structures [ 89 , 90 ]. Zhu et al hydrothermally synthesized Fe 2 O 3 nanoparticles for applications in SC electrodes and investigated how precursor conditions, surfactants, stabilizing agents, and reaction times affected the material electrochemical performance.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

Critical Aspects of Various Techniques for Synthesizing Metal Oxides and Fabricating Their Composite-Based Supercapacitor Electrodes: A Review

et al. 2022

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Supercapacitors (SCs) have attracted attention as an important energy source for various applications owing to their high power outputs and outstanding energy densities. The electrochemical performance of an SC device is predominantly determined by electrode materials, and thus, the selection and synthesis of the materials are crucial. Metal oxides (MOs) and their composites are the most widely used pseudocapacitive SC electrode materials. The basic requirements for fabricating high-performance SC electrodes include synthesizing and/or chemically modifying unique conducting nanostructures, optimizing a heterostructure morphology, and generating large-surface-area electroactive sites, all of which predominantly rely on various techniques used for synthesizing MO materials and fabricating MO- and MO-composite-based SC electrodes. Therefore, an SC’s background and critical aspects, the challenges associated with the predominant synthesis techniques (including hydrothermal and microwave-assisted syntheses and chemical-bath and atomic-layer depositions), and resulting electrode electrochemical performances should be summarized in a convenient, accessible report to accelerate the development of materials for industrial SC applications. Therefore, we reviewed the most pertinent studies on these synthesis techniques to provide insight into the most recent advances in synthesizing MOs and fabricating their composite-based SC electrodes as well as to propose research directions for developing MO-based electrodes for applications to next-generation SCs.

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Section: Hydrothermal Synthesismentioning

confidence: 99%

Critical Aspects of Various Techniques for Synthesizing Metal Oxides and Fabricating Their Composite-Based Supercapacitor Electrodes: A Review

et al. 2022

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“…Fe 3 O 4 is a highly promising candidate for supercapacitor electrode because of its relatively high electrical conductivity, fast reversible redox reaction, low cost and eco-friendly nature [ 149 – 152 ]. Similar to batteries, high performance supercapacitors also require two factors: large specific surface area and long-term stability.…”

Section: Fe 3 O 4 Based Nanostructuresmentioning

confidence: 99%

Progress in Iron Oxides Based Nanostructures for Applications in Energy Storage

Peng

et al. 2021

Nanoscale Res Lett

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The demand for green and efficient energy storage devices in daily life is constantly rising, which is caused by the global environment and energy problems. Lithium-ion batteries (LIBs), an important kind of energy storage devices, are attracting much attention. Graphite is used as LIBs anode, however, its theoretical capacity is low, so it is necessary to develop LIBs anode with higher capacity. Application strategies and research progresses of novel iron oxides and their composites as LIBs anode in recent years are summarized in this review. Herein we enumerate several typical synthesis methods to obtain a variety of iron oxides based nanostructures, such as gas phase deposition, co-precipitation, electrochemical method, etc. For characterization of the iron oxides based nanostructures, especially the in-situ X-ray diffraction and 57Fe Mössbauer spectroscopy are elaborated. Furthermore, the electrochemical applications of iron oxides based nanostructures and their composites are discussed and summarized.Graphic Abstract

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“…In this regard, various compositions of rGO and MOs such as manganese oxide (MnO), 19 zinc oxide (ZnO), 20 iron oxide (Fe 2 O 3 ), 21 titanium oxide (TiO 2 ), 22 cobalt oxide (CoO), 23 nickel oxide (NiO), 24 ruthenium oxide (RuO 2 ), 25 and tin oxide (SnO 2 ) 26 or CPs such as polypyrrole (PPY), 27 polyaniline (PANI), 28 and polythiophene (PTh) 29 have been proved as potential electrode materials to improve the capacitance. In our previous works, we have also reported rGO‐CPs 30 and rGO‐ZnO 31 based composites with the highest capacitance of 365.5 F/g.…”

Section: Introductionmentioning

confidence: 99%

Rhinestone sheet like carbon and metal oxide‐based nanocomposites for flexible supercapacitor applications

Chaudhary

Sinha

Mohan

2022

Intl J of Energy Research

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Summary The increasing thrust lies in developing a better electrode material for supercapacitor applications. Carbon and metal oxide‐based nanocomposites are the latest trend in this research area. In the present work, we are proposing the synthesis of simple, eco‐friendly and cost‐effective reduced graphene oxide (rGO), naturally derived carbon dots (CDs), and zinc oxide (ZnO)‐based rZD ternary nanocomposites. These nanocomposites have been synthesized using eco‐friendly and accessible hydrothermal method at three different temperatures (i.e., 300, 400, and 500°C) and accordingly named as rZD300, rZD400, and rZD500. Further, the morphological (scanning electron microscopy and transmission electron microscopy) characterization studies predicted that ZnO and CDs were attached on to the rGO nanosheets to form the rhinestone sheet like structures. In addition, the crystalline and structural properties have been examined using X‐ray diffraction, Raman, X‐ray Photoelectron Spectroscopy, and X‐ray Absorption Spectroscopy. The electrochemical studies (cyclic voltammetry, galvanostatic charge‐discharge, and electrochemical impedance spectroscopic) predicted that highest capacitance achieved was 796 F/g using 2 M H2SO4 electrolytic solution for rZD500 nanocomposite. Finally, 1.5 V prototype flexible Supercapacitors (FSC) have been also fabricated using carbon cloth substrate for rZD500nanocomposite.

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Iron oxide-based nanomaterials for supercapacitors

Cited by 51 publications

References 173 publications

Critical Aspects of Various Techniques for Synthesizing Metal Oxides and Fabricating Their Composite-Based Supercapacitor Electrodes: A Review

Critical Aspects of Various Techniques for Synthesizing Metal Oxides and Fabricating Their Composite-Based Supercapacitor Electrodes: A Review

Progress in Iron Oxides Based Nanostructures for Applications in Energy Storage

Rhinestone sheet like carbon and metal oxide‐based nanocomposites for flexible supercapacitor applications

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