3D Graphene Foams Cross‐linked with Pre‐encapsulated Fe<sub>3</sub>O<sub>4</sub> Nanospheres for Enhanced Lithium Storage

Wei, Wei; Yang, Shubin; Zhou, Hongwei; Lieberwirth, Ingo; Feng, Xinliang; Müllen, Kläus

doi:10.1002/adma.201300445

Cited by 745 publications

(508 citation statements)

References 50 publications

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“…Owing to these outstanding properties, graphene sheets have been widely applied in different fields such as lithium ion batteries [6][7][8][9], supercapacitors [10][11][12], biomedical materials [13][14][15], and composite materials [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Yang et al [21] demonstrated that the compressive failure strength and the toughness of APTS monoliths improved by 19.9 and 92%, respectively, when 0.1 wt% functionalized GO sheets were added. In general, nanofillers are directly dispersed in a resin matrix via thermal exfoliation at high temperature [35][36][37][38] or are dispersed in an organic solvent which is later evaporated [9,[39][40][41], resulting in polymer composites. However, Yang et al [42] recently described a new economically viable method where GO was dispersed through a two-phase extraction resulting in GO/epoxy resin composites.…”

Section: Introductionmentioning

confidence: 99%

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Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Zhang

Liang

Wang

et al. 2017

Adv Compos Hybrid Mater

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This work investigated the mechanical properties of epoxy resin composites embedded with graphene oxide (GO) using a novel two-phase extraction method. The graphene oxide from water phase was transferred into epoxy resin forming homogeneous suspension. Hyperbranched polyamine-ester (HBPE) anchored graphene oxide (GO HBPE ) was prepared by modifying GO with HBPE using a neutralization reaction. Fourier transform-infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM) showed that the HBPE was successfully grafted to the GO surface. The mechanical properties and dynamic mechanical analysis (DMA) of the composites demonstrated that GO HBPE played a critical role in mechanical reinforcement owing to the layered structure of GO, wrinkled topology, surface roughness and surface area ascending from various oxygen groups of GO itself, and the inarching of HBPE and the reaction among GO, HBPE, and epoxy resin. The transferred GO HBPE /epoxy resin composites showed 69.1% higher impact strength, 129.1% more tensile strength, 45.3% larger modulus, and 70.8% higher strain compared to that of cured neat epoxy resin. The glass transition temperature (Tg) of GO HBPE /epoxy resin composites was increased from 135 to 141°C and their damping capacity was also improved from 0.71 to 0.91. This study provides guidelines for the fabrication of strengthened polymer composites using phase transfer approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Zhang

Liang

Wang

et al. 2017

Adv Compos Hybrid Mater

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“…Regarding the progression of the previously developed hybrids, improved specifi c capacity values were reported through the exploitation of 3D graphene matrixes incorporating, for example, SnO 2 , [252][253][254] Fe 3 O 4 , [ 255,256 ] MoS 2 , [ 257,258 ] SnS 2 , [ 259 ] MnO, [ 260 ] TiO 2 [ 261 ] or Si [ 262 ] particles. Indeed, the graphene network appeared to be benefi cial for reducing the material resistance and to improve the mechanical stability of the electrode.…”

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confidence: 99%

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

et al. 2016

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that its extraordinary properties would enable revolutionary new technologies, which gave birth to the "graphene era". [ 3,4 ] Relying on this scenario, in 2013, the European Union launched the ¤1 billion "Graphene Flagship" project aimed to investigate the properties of this new form of carbon for various applications (e.g., electronics, sensors and energy storage devices), with the ambitious goal of guiding graphene from laboratories to commercial applications within a decade. [ 5,6 ] In the same period, the Chinese Government set up a similar investment to mass-produce graphene as thin fi lms (e.g., for touchscreen electrodes) and platelets (e.g., for use in batteries). [ 6 ] In the following years, hundreds of patents, mainly focused on manufacturing and application in energy storage, were fi led and the worldwide production of graphene and graphene-containing materials rapidly increased. Although a few Chinese industries claimed to already use graphene-containing materials for smartphone production, no revolutionary practical application relying on graphene has been yet developed. [ 6 ] Specifi cally with respect to the battery fi eld, a close analysis of the scientifi c literature reveals a struggle to meet the ambitious initial targets. A potential loss of focus from the fi nal application caused by hype and ease of publication on such a novel matter, together with the delivery of very misleading information [ 7,8 ] and erroneous statements [ 7 ] concerning the use of graphene in batteries are emerging as possible reasons of the ineffective graphene-era outburst. In this progress report, we do not focus on production and classifi cation of graphene and graphene-containing materials, which were already well reported in the past years. [ 3,[9][10][11] In contrast, due to the lack of an exhaustive analysis of the progression of the use of such materials in lithium-ion battery (LIB) anodes, we report here a critical evaluation of the most prominent research papers published from 2008 until the end of 2015. As shown in Figure 1 , three different stages of the graphene research in LIB anodes can be distinguished: a fi rst stationary phase between 2008 and 2010 where the lithium-ion storage properties of different graphene and graphene-containing materials were preliminarily explored, a second exponential stage, spanning from 2010 to 2014, where graphene and graphene-containing anode materials were broadly developed and investigated, and fi nally, a third phase, (i.e., starting from 2015), where the research seems to have approached a plateau. After Used as a bare active material or component in hybrids, graphene has been the subject of numerous studies in recent years. Indeed, from the fi rst report that appeared in late July 2008, almost 1600 papers were published as of the end 2015 that investigated the properties of graphene as an anode material for lithium-ion batteries. Although an impressive amount of data has been collected, a real advance in the fi eld still seems to be missing. In this framework, atten...

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“…To further improve the rate performance of MOs, much effort has been made to accommodate the active materials with porous conductive scaffolds to form the nanocomposites such as carbon nanotubes [11][12][13][14][15][16][17][18][19], graphene [20][21][22][23][24] and carbon nanofibers [25][26][27][28][29] because they could provide long-range conductivity, well controlled interface between MOs and conducting carbons, and more robust network structure. In particular, CNTs is a good candidate for a support matrix in novel anode material for enhanced lithium storage due to its high electrical conductivity, rich porosity and high tensile strength [30,31].…”

Section: Australiamentioning

confidence: 99%

NiO hollow microspheres interconnected by carbon nanotubes as an anode for lithium ion batteries

Cao

Chen

et al. 2016

Electrochimica Acta

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NiO hollow microspheres interconnected by carbon nanotubes as an anode for lithium ion batteries, Electrochimica Acta http://dx.doi.org/10. 1016/j.electacta.2016.07.094 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. interconnecting the NiO microspheres of the composite material, of which electronic conductivity was improved, and the mesoporous hollow structure effectively alleviated the volume changes to maintain the structural stability during cycling.

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3D Graphene Foams Cross‐linked with Pre‐encapsulated Fe₃O₄ Nanospheres for Enhanced Lithium Storage

Cited by 745 publications

References 50 publications

Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

NiO hollow microspheres interconnected by carbon nanotubes as an anode for lithium ion batteries

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3D Graphene Foams Cross‐linked with Pre‐encapsulated Fe3O4 Nanospheres for Enhanced Lithium Storage

Cited by 745 publications

References 50 publications

Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Strengthened epoxy resin with hyperbranched polyamine-ester anchored graphene oxide via novel phase transfer approach

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

NiO hollow microspheres interconnected by carbon nanotubes as an anode for lithium ion batteries

Contact Info

Product

Resources

About

3D Graphene Foams Cross‐linked with Pre‐encapsulated Fe₃O₄ Nanospheres for Enhanced Lithium Storage