Lead Oxide Microparticles Coated by Ethylenediamine-Cross-Linked Graphene Oxide for Lithium Ion Battery Anodes

Guo, Alan; Chen, Eric; Wygant, Bryan R.; Heller, Adam; Mullins, C. Buddie

doi:10.1021/acsaem.9b00401

Cited by 19 publications

(9 citation statements)

References 27 publications

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“…As seen, the capacities of 2D-rGO and 1D-GNS show an upward trend after the first dozen laps of natural decline, corresponding to the electrochemical activation behavior of the electrode and the enhancement of Li + acceptability. 52,53 The 2D-rGO sample delivered a higher discharge specific capacity than 1D-GNS before the ∼2000th cycle. After that, the capacity of 2D-rGO began to decline until the test was over, whereas the capacity of 1D-GNS continued to increase, and reached 388 mAh g −1 at the 2800th cycle, indicating that 1D-GNS has more excellent long-term cycle stability.…”

Section: Resultsmentioning

confidence: 99%

Sodium Sulfate Template-Directed Methodology of Rolling Up a Two-Dimensional Graphene Nanosheet into a One-Dimensional Nanoscroll and Its Anode Performance in a Lithium-Ion Battery

Yin

Yan

et al. 2021

ACS Appl. Energy Mater.

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Graphene nanoscroll has received enormous interest due to its potential applications in various fields. However, in practice there still remains a challenge toward cost-efficiency and scale-up production with the existing advanced experimental techniques. Herein, we report an integration methodology to construct a one-dimensional graphene nanoscroll (1D-GNS) from a two-dimensional graphene nanosheet (2D-rGO) via an ingenious template-directed synthesis approach, in which Na2SO4 was used as a sacrificial template for the first time. Na2SO4 was first generated on the surface of reduced graphene oxide (rGO) nanosheets by a combination of antisolvent self-assembly and heat treatment under moderate temperature, in sequence, to shape and maintain the 2D-rGO architecture into an rGO@Na2SO4 composite, which was then immediately quenched into water to dissolve the Na2SO4 template and meanwhile roll up the 2D graphene nanosheets into 1D nanoscrolls spontaneously, followed by a final thermal reduction to reduce the oxygenous groups. The crimping behavior of the 1D-GNS can be conducted by varying the heat-treatment temperature during the quenching process. The as-synthesized 1D-GNS gives quite good electrochemical stability when evaluated as an anode material in a Li-ion battery. This interesting methodology provides an avenue to design and fabricate other scroll-structured nanoarchitectures.

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Section: Resultsmentioning

confidence: 99%

Sodium Sulfate Template-Directed Methodology of Rolling Up a Two-Dimensional Graphene Nanosheet into a One-Dimensional Nanoscroll and Its Anode Performance in a Lithium-Ion Battery

Yin

Yan

et al. 2021

ACS Appl. Energy Mater.

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“…Graphene oxide (GO) was directly purchased from XFNANO without further treatment [27]. The rGO@CVO composite was synthesized with a two-step method.…”

Section: Preparation Of Samplesmentioning

confidence: 99%

Co3V2O8 Nanoparticles Supported on Reduced Graphene Oxide for Efficient Lithium Storage

Shang

2020

Nanomaterials

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Co3V2O8 (CVO) with high theoretical specific capacity derived from the multiple oxidation states of V and Co is regarded as a potential electrode material for lithium-ion batteries (LIBs). Herein, reduced graphene oxide (rGO)-supported ultrafine CVO (rGO@CVO) nanoparticles are successfully prepared via the hydrothermal and subsequent annealing processes. The CVO supported on 2D rGO nanosheets possess excellent structural compatibility for the accommodation of volume variation to maintain the structural integrity of an electrode during the repeated lithiation/delithiation process. On the other hand, the rGO, as a highly-conductive network in the rGO@CVO composite, facilitates rapid charge transfer to ensure fast reaction kinetics. Moreover, the CV kinetic analysis indicates that the capacity of rGO@CVO is mainly dominated by a pseudocapacitive process with favorable rate capability. As a result, the rGO@CVO composite exhibits improved specific capacity (1132 mAh g−1, 0.1 A g−1) and promising rate capability (482 mAh g−1, 10 A g−1).

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“… 22 There are many oxide forms including PbO, Pb 2 O 3 , Pb 3 O 4 , and PbO 2 which can be applied in γ-ray shielding, 23 photoconductor, 24 memristor application, 25 radiation attenuation application, 26 energy-storage application, 27 and lithium ion battery. 28 The lead oxide nanoparticles (PbO-NPs) have been synthesized by several methods such as sol–gel, chemical precipitation, chemical bath deposition, spray paralysis, hydrothermal, and laser ablation. 29 However, most methods require high-temperatures operation, high-vacuum systems, high energy, multistep processes, long operation times leading to expensive and harmful to the environment.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical paraquat sensor based on lead oxide nanoparticles

et al. 2022

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Lead Oxide Microparticles Coated by Ethylenediamine-Cross-Linked Graphene Oxide for Lithium Ion Battery Anodes

Cited by 19 publications

References 27 publications

Sodium Sulfate Template-Directed Methodology of Rolling Up a Two-Dimensional Graphene Nanosheet into a One-Dimensional Nanoscroll and Its Anode Performance in a Lithium-Ion Battery

Sodium Sulfate Template-Directed Methodology of Rolling Up a Two-Dimensional Graphene Nanosheet into a One-Dimensional Nanoscroll and Its Anode Performance in a Lithium-Ion Battery

Co3V2O8 Nanoparticles Supported on Reduced Graphene Oxide for Efficient Lithium Storage

Electrochemical paraquat sensor based on lead oxide nanoparticles

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