2013
DOI: 10.1039/c3ra41724g
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Efficient synthesis of graphene-based powder via in situ spray pyrolysis and its application in lithium ion batteries

Abstract: Conventional solution-phase chemical reduction of exfoliated graphene oxide sheets followed by drying often results in serious reaggregation of the graphene sheets due to the high surface energy. Here we report a modification of the reduction process based on the Hummers method that involves an in situ spray pyrolysis. The process results in a series of graphene-based powders, the morphologies of which are mostly dependent on the spraying temperature. The effects of the spraying temperature were investigated i… Show more

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Cited by 23 publications
(11 citation statements)
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References 41 publications
(43 reference statements)
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“…These activation processes can also be observed in other graphene-based electrodes 31 32 . Notably, the S-doped graphene, N-doped graphene and solvothermal graphene electrodes exhibited high cyclic stability without the capacity fluctuations that might occur during long cycles, which has also been observed in other reported graphene electrodes 11 33 . The initial Coulombic efficiencies of the S-doped graphene, N-doped graphene and solvothermal graphene are 65.8%, 58.3%, and 45.8%, respectively.…”
Section: Resultssupporting
confidence: 74%
“…These activation processes can also be observed in other graphene-based electrodes 31 32 . Notably, the S-doped graphene, N-doped graphene and solvothermal graphene electrodes exhibited high cyclic stability without the capacity fluctuations that might occur during long cycles, which has also been observed in other reported graphene electrodes 11 33 . The initial Coulombic efficiencies of the S-doped graphene, N-doped graphene and solvothermal graphene are 65.8%, 58.3%, and 45.8%, respectively.…”
Section: Resultssupporting
confidence: 74%
“…Hence the lithiated carbons have low negative electrochemical potentials, graphene has been also found suitable as anode materials in Li‐ion (but also Na‐ion) batteries . Distinct from graphite anodes, where Li + intercalates at edge planes, no such reaction is possible in the case of SLG.…”
Section: Unconventional Techniques and Configurationsmentioning
confidence: 99%
“…Some SP-generated carbonaceous anode materials presented superior lithium storage capacities over graphite anode. [66,67] This article is protected by copyright. All rights reserved.…”
Section: Carbonaceous Anode Materials Prepared By Spmentioning
confidence: 99%
“…Due to its high surface area, excellent electronic conductivity, and large lithium storage capacity over graphite, graphene was frequently explored as anodes for LIBs. [68][69][70][71][72][73] Very recently, Yang et al [67] reported a way to efficiently synthesize graphene-based powder for LIBs via in situ SP.…”
Section: Carbonaceous Anode Materials Prepared By Spmentioning
confidence: 99%