Unusually Huge Charge Storage Capacity of Mn<sub>3</sub>O<sub>4</sub>–Graphene Nanocomposite Achieved by Incorporation of Inorganic Nanosheets

Adpakpang, Kanyaporn; X, Jin; Lee, Seul; Oh, Seung Mi; Lee, Nam Suk; Hwang, Seong Ju

doi:10.1021/acsami.6b00208

Cited by 45 publications

(25 citation statements)

References 57 publications

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“…The C 1 s spectrum (Figure d) was fitted to four components centered. The strong peak at 284.6 eV for C 1s corresponds to carbon, whereas the other oxygenated carbons (C−O at 285.3 eV, C=O at 286.8 eV, O−C=O at 288.8 eV) are also identified from the fitting curves . In addition, the XPS of pure MnO were also characterized in Figure S8 (Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

“…The strong peak at 284.6 eV for C1 sc orresponds to carbon,w hereas the other oxygenated carbons (CÀOa t 285.3 eV,C =Oa t2 86.8 eV,O ÀC=Oa t2 88.8 eV) are also identified from the fitting curves. [11] In addition, the XPS of pure MnO werea lso characterized in Figure S8 (SupportingI nformation). From the survey spectrum, the peaks of Mn 2p, O1sindicate the existenceo fM nO in the sample.…”

Section: Resultsmentioning

confidence: 99%

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3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Fan

et al. 2018

Chemistry A European J

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MnO is a promising high-capacity anode material for lithium-ion batteries (LIBs), but pristine material suffers short cycle life and poor rate capability, thus hindering the practical application. In this work, a new type of porous MnO microballs stringed with N-doped porous carbon (3DHB-MnO@NC) with a well-connected hierarchical three-dimensional network structure was prepared by the facile self-template method. The 3DHB-MnO@NC electrode can effectively promote the ion/electron transfer and buffer the large volume change of electrode during the electrochemical reaction. As the anode for LIBs, the 3DHB-MnO@NC possesses outstanding cycling performance (1247.7 mA h g after 90 cycles at 200 mA g ) and good rate capabilities (949.6 mA h g after 450 cycles at 1000 mA g ). The facile self-template method of the prepared 3DHB-MnO@NC composite paves a new way for practical applications of MnO in high performance LIBs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Fan

et al. 2018

Chemistry A European J

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“…Recently, we have developed a novel strategy to enhance electrode performance of graphene‐based nanocomposites by the addition of TMO nanosheets. The incorporation of a small amount (less then few weight percent) of exfoliated TMO nanosheets into graphene‐based nanocomposites leads to the remarkable improvement of their electrochemical properties, since the intervened inorganic nanosheets weakens the π–π interaction between graphene nanosheets and improves the pore and composite structures of graphene‐based nanocomposites by depressing the severe self‐stacking of graphene (Figure ) . The RuO 2 nanosheet exhibited high electrical conductivity with hydrophilic surface properties .…”

Section: Electrode and Electrocatalyst Applicationsmentioning

confidence: 99%

“…Besides, a weaker self‐aggregating tendency of RuO 2 nanosheet resulted in the formation of more porous structure with MnO 2 material compared to the rGO nanosheet . Of prime importance is that the incorporation of small amount of metal oxide nanosheet is highly useful in improving the porosity and electrode performance of rGO‐based nanocomposite through the depression of strong chemical interaction between rGO nanosheets . In one instance, the immobilization of Co‐Al‐LDH on the hybrid matrix of MnO 2 and rGO nanosheets led to the remarkable improvement of supercapacitor electrode functionality of LDH .…”

Section: Electrode and Electrocatalyst Applicationsmentioning

confidence: 99%

“…[91b] Similart ot he application of nanosheets for anodes, many researchers appliedt he Na 3 V 2 (PO 4 ) 3 and Na 7 V 3 (P 2 O 7 ) 4 nanosheets as cathodes for SIBs and the LiMPO 4 (M = Fe, Mn, Co, Ni)n anosheets as cathodes for LIBs. [78,88,92] Among various layered materials, TMDs are most widelyi nvestigated for the electrode applicationi nb oth LIBs and SIBs, since these materials experienceafacile intercalation of Li + and Na + ions. Exfoliation of layered TMDs into 2D nanosheets furtherr educes the intercalation barriera nd shortens the diffu-sion path for Li + and Na + ions.…”

Section: Libs/sibsmentioning

confidence: 99%

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Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

Patil

et al. 2018

Chemistry A European J

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Among many types of nanostructured inorganic materials, highly anisotropic 2D nanosheets provide unique advantages in designing and synthesizing efficient electrode and electrocatalyst materials for novel energy storage technologies. 2D inorganic nanosheets boast lots of unique characteristics such as high surface area, short ion diffusion path, tailorable compositions, and tunable electronic structures. These merits of 2D inorganic nanosheets render them promising candidate materials as electrodes for diverse secondary batteries and supercapacitors, and electrocatalysts. A wide spectrum of examples is presented for inorganic nanosheet-based electrodes and electrocatalysts. Future perspectives in research about 2D nanosheet-based functional materials are discussed to provide insight for the development of next-generation energy storage systems using 2D nanostructured materials.

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Organic–Rare Earth Hybrid Anode with Superior Cyclability for Lithium Ion Battery

Wang

Sun

et al. 2020

Adv Materials Inter

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new applications. Much effort is concentrated on design and synthesis of novel electrodes that possess high theoretical capacity, proper potential, and excellent structural stability during long-term cycling. [2] Considering the sustainable development, organic redox compounds with structural diversity should be ideal electrode materials. However, organic compounds frequently suffer from intractable technical challenges: [3] a) limited electroactive sites for Li-ions insertion/ desertion cause low specific capacity; b) lithiated products are soluble in electrolytes, leading to rapid capacity fading; c) agglomerates of organic molecules cause sluggish electrochemical kinetics. To increase Li-ions storage sites, introducing redox functional groups to organic compound represents one efficient approach to improve theoretical capacity. [4] For classical dicarboxylic compounds as anode materials, [5] they reversibly transfer two electrons during electrochemical processes. In other words, they reversibly intercalate two extra lithium ions in organic compounds during discharge process. In previous studies, we have demonstrated that when four sulfur atoms are introduced to a single carboxylate scaffold, electron delocalization and electrical conductivity were remarkably improved. Accordingly, ion storage sites are significantly increased to six, [6] resulting in an exceptional theoretical capacity.Although the problem of organic compound dissolution has been largely addressed by polymerization, [7] this approach relies on the development of multicomponent polymeric reactions of small molecules. As for polymer battery, recent reports are mainly focused on the field of π-conjugated polymer electrodes such as polythiophene, [8] polypyrrole, [9] polyphenylene, [10] and polyacetylene. [11] Clearly, these polymers have no distinct redox sites. As a result, their low doping-degrees lead to decreased theoretical capacities. Furthermore, most of the organic polymers display the morphology of agglomerates, which is not conducive to the thermodynamics and kinetics of their electrode reactions. Fortunately, incorporating nanostructured conductors (e.g., carbon and metal oxides) to form composites has been demonstrated as one effective strategy for preventing active material dissolution. [12] For instance, Zhang et al. found that the carbon layer can improve electrical conductivity and the tangled CNT network can maintain the integrity of composite electrodes (Si@C-CNTs). [13] Chen et al. used nanostructured magnesium nickel oxide (Mg 0.6 Ni 0.4 O) to prepare the Organic compounds with electroactive sites are considered as a new generation of green electrode materials for lithium ion batteries. However, exploring effective approaches to design high-capacity molecules and suppressing their solubilization remain big challenges. Herein, a functional anode architecture is first designed by using chemical bonds between organic compound and rare earth hollow structure, which enables active materials to be efficiently utilized, accelerate...

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Unusually Huge Charge Storage Capacity of Mn₃O₄–Graphene Nanocomposite Achieved by Incorporation of Inorganic Nanosheets

Cited by 45 publications

References 57 publications

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

Organic–Rare Earth Hybrid Anode with Superior Cyclability for Lithium Ion Battery

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Unusually Huge Charge Storage Capacity of Mn3O4–Graphene Nanocomposite Achieved by Incorporation of Inorganic Nanosheets

Cited by 45 publications

References 57 publications

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

Organic–Rare Earth Hybrid Anode with Superior Cyclability for Lithium Ion Battery

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Product

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Unusually Huge Charge Storage Capacity of Mn₃O₄–Graphene Nanocomposite Achieved by Incorporation of Inorganic Nanosheets