Superparamagnetic Fe3O4 nanocrystals@graphene composites for energy storage devices

Li, Baojun; Cao, Huaqiang; Shao, Jianda; Qu, Meizhen; Warner, Jamie H.

doi:10.1039/c0jm03717f

Cited by 338 publications

(203 citation statements)

References 73 publications

(58 reference statements)

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“…Unfortunately, none of these enabled satisfactory long term stability (maximum 100 cycles), and most of them showed a high 1 st cycle irreversible capacity (see Table 2 ). At the same time, previously reported graphene-containing alloy (e.g., Sn, [ 144 ] SnO 2 [145][146][147][148][149] or Si [150][151][152][153] ), conversion (e.g., Fe 3 O 4 , [154][155][156][157] Co 3 O 4 [158][159][160][161] or CuO [162][163][164] ) and insertion (e.g., TiO 2 [165][166][167][168] or LTO [169][170][171] ) hybrids were further improved. Interestingly, some appealing approaches, such as the use of ternary hybrids (e.g., RGO/SnO 2 /Fe 3 O 4 [ 172 ] or RGO/CNT/ Sn [ 173 ] ), porous 3D (e.g., RGO/Fe 3 O 4 [ 174,175 ] ) and hollow architectures (e.g., RGO/Fe 3 O 4 [ 176 ] and RGO/TiO 2 [ 168 ] ), were introduced.…”

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confidence: 75%

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

et al. 2016

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“…and G-band (~1599 cm -1 ) of GO, Fe 3 O 4 /RGO, and the RGOF nanocomposites. 32 The D band is caused by structural defects or edges in graphene, and the G band corresponds to the first-order scattering of the E 2g mode observed for sp 2 [35][36][37][38][39] In addition, the absence of peak at 1735 cm -1 and a decrease in the intensity of the broad band at 3156 cm -1 in the spectrum of RGO/Fe 3 O 4 composite compared to that of GO supports the reduction of functional groups by hydrazine, which is consistent with the XRD and Raman results. X-ray photoelectron spectroscopy (XPS) spectra [ Figure 1(d) and Figure S4] demonstrate the presence of Fe, O, and C in the RGOF composites.…”

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confidence: 99%

One-pot synthesis of ultra-small magnetite nanoparticles on the surface of reduced graphene oxide nanosheets as anodes for sodium-ion batteries

Zhang

Tan

et al. 2015

J. Mater. Chem. A

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“…Furthermore, such groups make GO convenient to be modified [31][32][33][34][35][36][37][38]. Recently, GO based magnetic nanocomposites have been widely used in various fields, such as targeted drug carriers [39,40], pollution control [41], and battery materials [42][43][44]. With large surface area and considerable hydrophilic groups, GO is a perfect substrate for enzyme immobilization.…”

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confidence: 99%

Hydrophilic immobilized trypsin reactor with magnetic graphene oxide as support for high efficient proteome digestion

Jiang

Yang

Zhao

et al. 2012

Journal of Chromatography A

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Superparamagnetic Fe3O4 nanocrystals@graphene composites for energy storage devices

Cited by 338 publications

References 73 publications

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

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

One-pot synthesis of ultra-small magnetite nanoparticles on the surface of reduced graphene oxide nanosheets as anodes for sodium-ion batteries

Hydrophilic immobilized trypsin reactor with magnetic graphene oxide as support for high efficient proteome digestion

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