Hierarchically structured reduced graphene oxide/WO3 frameworks for an application into lithium ion battery anodes

Park, Sul Ki; Lee, Hyun Joo; Lee, Min Hyung; Park, Ho Seok

doi:10.1016/j.cej.2015.07.009

Cited by 66 publications

(23 citation statements)

References 37 publications

(41 reference statements)

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“…(1). Li + diffusion coefficient of the binder-free RGO/Cu foil electrode was about 1.46 × 10 − 12 cm 2 /s, higher than 1.19 × 10 −12 cm 2 /s of graphene anode in literature, indicating higher mobility of Li + and smaller polarization of the binder-free RGO/Cu foil electrode in this work [37].…”

Section: Ac Impedance Analysismentioning

confidence: 88%

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

Liu

Wang

Hou

et al. 2016

Diamond and Related Materials

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Section: Ac Impedance Analysismentioning

confidence: 88%

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

Liu

Wang

Hou

et al. 2016

Diamond and Related Materials

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“…Graphene oxides (GO) were synthesized through am odified Hummers method using pristine graphite powders as raw materials. [23,24] The detailed preparation process is given in the Supporting Information. The WO 3 NRs/rGO nanocomposites were fabricated by as imple and efficient electrostatic adsorptive hydrothermal method, as illustrated in Scheme 1.…”

Section: Synthesis Of Wo 3 Nrs/rgomentioning

confidence: 99%

“…[19][20][21][22] Nevertheless, the capacitance and rate performance of WO 3 are not ideal because of the unstable crystal structure and poor electronic conductivity. [23,24] For am ore favorable comprehensive electrochemical performance, it is necessary to find feasible methods to enhance its structure and improvei ts conductivity.…”

Section: Introductionmentioning

confidence: 99%

One‐Pot Hydrothermal Synthesis of Hexagonal WO₃ Nanorods/Graphene Composites as High‐Performance Electrodes for Supercapacitors

et al. 2017

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Tungsten oxide (WO3) as an electrode material for supercapacitors has always suffered from low capacitance and poor rate capability. In this work, a series of WO3 nanorods/graphene composites with different weight ratios of tungsten oxide nanorods (WO3 NRs) and reduced graphene oxide (rGO) are synthesized successfully through a facile one‐pot electrostatic adsorptive hydrothermal method. In these composites, rGO enhances the conductivity, transporting electrons and protons to the WO3 NRs. In addition, rGO can reinforce the structure of the WO3 NRs during frequently occurring redox reactions. At a graphene weight ratio of 1 wt %, the specific capacitance of the WO3 NRs/rGO composite is 343 F g−1 at a current density of 0.2 A g−1. Compared with pure WO3 as electrodes, the WO3 NRs/rGO composite shows excellent specific capacity, and superior rate performance and cycling stability owing to the combined action of the double layer and pseudocapacitor. This study provides a new convenient approach to promote the electrochemical performance of tungsten oxide.

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“…Nevertheless, the electrical conductivity and rate capability of SnS 2 are restricted from the volume expansion and capacity fading in the process of ion insertion and extraction [8,[12][13][14][15]. Thus, the graphene with unique properties can be used as a conductive matrix to enhance electron transport and buffer the volume expansion, resulting in the rapid development of graphene-based nanocomposites [8,[14][15][16][17][18][19][20]. The typological nanocomposites are supposed to maximize structure compatibility and obtain greater capacity than the individual components [14].…”

Section: Introductionmentioning

confidence: 99%

Preparation and lithium ion batteries properties of SnS2 nanoparticle/reduced graphene oxide nanosheet nanocomposites using supercritical carbon dioxide

Yan

Lin

et al. 2016

Synthetic Metals

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Graphene-based nanocomposites have been widely investigated as promising anode materials because of the high specific capacity and good rate capability. However, effective distributing the nanomaterials into graphene conductive network still remains some challenges. In this study, the supercritical carbon dioxide (SC CO 2) route as a good strategy is developed to prepare SnS 2 /reduced graphene oxide (RGO) nanocomposites, which integrates the complementary effect of ultrasmall SnS 2 nanopaticle and RGO nanosheet in the nanocompositions. The SnS 2 /RGO nanocomposite exhibits high initial discharge capacity of 1466.1 mAhg-1 (100 mAg-1), good capacity retention of about 492 mAhg-1 (100 mAg-1) after 70 cycles and good rate capacity as an anode material for lithium ion batteries. These results demonstrate that supercritical CO 2 (SC CO 2) possess significant technological value to enhance the energy storage properties of other two-dimensional (2D) nanocomposites.

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Hierarchically structured reduced graphene oxide/WO3 frameworks for an application into lithium ion battery anodes

Cited by 66 publications

References 37 publications

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

One‐Pot Hydrothermal Synthesis of Hexagonal WO₃ Nanorods/Graphene Composites as High‐Performance Electrodes for Supercapacitors

Preparation and lithium ion batteries properties of SnS2 nanoparticle/reduced graphene oxide nanosheet nanocomposites using supercritical carbon dioxide

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Hierarchically structured reduced graphene oxide/WO3 frameworks for an application into lithium ion battery anodes

Cited by 66 publications

References 37 publications

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

Binder-free combination of large area reduced graphene oxide nanosheets with Cu foil for lithium ion battery anode

One‐Pot Hydrothermal Synthesis of Hexagonal WO3 Nanorods/Graphene Composites as High‐Performance Electrodes for Supercapacitors

Preparation and lithium ion batteries properties of SnS2 nanoparticle/reduced graphene oxide nanosheet nanocomposites using supercritical carbon dioxide

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One‐Pot Hydrothermal Synthesis of Hexagonal WO₃ Nanorods/Graphene Composites as High‐Performance Electrodes for Supercapacitors