Stabilizing the reversible capacity of SnO2/graphene composites by Cu nanoparticles

Jiang, Yong; Wan, Yunfan; Jiang, Wei; Tao, Haihua; Li, Wenrong; Huang, Shoushuang; Chen, Zhiwen; Zhao, Bing

doi:10.1016/j.cej.2019.02.141

Cited by 51 publications

(13 citation statements)

References 62 publications

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“…Table 3 shows supercapacitors with excellent performance can be prepared using Gr/metal oxide composites. e specific capacities of the obtained capacitors were higher than those comprising metal oxides containing no Gr, and the cycle stability was good [49][50][51][52][53][54][55][56]. Of particular interest, one study by Liu et al described the preparation of RGO/V 2 O 5 composite material, which exhibited a capacitance of Advances in Materials Science and Engineering Elastic modulus and yielding strength were 1.3 and 1.8 folds, respectively, higher than those of pure Cu [37] Gr/Cu Sintering 0.5 wt.%…”

Section: Applications Of Graphene/inorganic Composite Materialsmentioning

confidence: 99%

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Long

Weng

2020

Advances in Materials Science and Engineering

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As two-dimensional materials with a high specific surface area, strength, and electrical and thermal conductivity, graphene (Gr) and its derivatives have great application prospects in various fields such as structural reinforcement, energy storage, optics, and electrical and thermal conductivity. However, the current preparation method of Gr is complicated and expensive. Its preparation cost can be reduced using Gr composites that include inorganic materials or other polymers. Composite materials comprising Gr and inorganic materials are generally prepared using sinter molding, chemical reduction, or chemical deposition. Gr should be able to mitigate several of the defects resulting from inorganic materials, including their poor toughness, small specific capacity, and low photoelectric conversion rate. The mitigation of these defects should result in the expansion of the applications of Gr composites for use in capacitors, catalysts, and sensors, among other devices. Although solution blending or in situ polymerization produces a relatively good mixing effect, in general, melt blending is used in the large-scale processing of Gr composites with polymer materials. Gr can be used to partially mitigate several weaknesses of polymer materials, including their low strength, poor electrical and thermal conductivities, and poor isolation performance, and expand the applications of Gr composites for use in electrical and thermal conductive materials and functional membrane materials, among other applications. The goal of the present paper is to introduce the structural properties of Gr and a surface modification method for Gr. In addition, the preparation methods and application fields of different Gr composite materials are reviewed. Finally, the development prospects and key issues are discussed.

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Section: Applications Of Graphene/inorganic Composite Materialsmentioning

confidence: 99%

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Long

Weng

2020

Advances in Materials Science and Engineering

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“…49 Jiang et al synthesized a novel ternary SnO 2 /Cu/graphene composite by a one-pot selective reduction method, in which N 2 H 4 $H 2 O was used as a reductant to realize a selective reduction fabrication process because its reduction strength falls in between these two components. 40 The process abandons complicated mechanical mixing (such as high-energy ball milling) and the possibility of destroying the integrity of the composite structure; it can also realize the uniform distribution of active substances and conductive components. In the asprepared ternary graphene composite by Jiang and coworkers, the electrochemically active SnO 2 and inactive metallic Cu nanoparticles anchor tightly on exible conductive graphene sheets and are located in close proximity to each other.…”

Section: Composites Of Graphenementioning

confidence: 99%

“…In summary, the results obtained from this study demonstrate that Cu nanoparticles are promising in promoting the reversibility of the conversion reaction and stabilizing the reversible capacity of SnO 2 -graphene-based composites. 40 Carbon allotropes such as 0D carbon dots, 1D carbon nanotubes and 2D graphene have attracted signicant interest in many elds including catalysis, new device structures and solar energy harvesting. 41 Particularly, the discovery of graphene has raised a wave of new research on a range of 2D materials, e.g., phosphorene, transition metal dichalcogenides and hexagonal boron nitrides.…”

Section: Composites Of Graphenementioning

confidence: 99%

Graphene nanocrystals in CO₂photoreduction with H₂O for fuel production

Darkwah

Teye

2020

Nanoscale Adv.

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“…[33,34] It is worth noting that the conductivity of Cu is normally several orders of magnitude higher than that of carbon. [35,36] Therefore, it can be reasonable to predict that the incorporation of Cu into SnO 2 would facilitate the further enhancement of electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of the Peapod‐Like Cu–SnO₂@Copper Foam as Anode with Excellent Cycle Stability and High Area Specific Capacity

Liu

et al. 2021

Adv Funct Materials

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The theoretical specific capacity of tin oxide (SnO2) anode material is more than twice that of graphite material (782 vs 372 mAh g–1), whereas its potential usage is limited fatally by its huge volume expansion during lithiation. An effective solution is to encapsulate tin oxide into hollow structure such as yolk‐shell based on the principle of confinement. However, in light of the restricted space of active substance, this kind of hollow electrode always has the low capacity, severely limiting its commercial value. Herein, a peapod‐like Cu‐SnO2@copper foam (CF) as high area specific capacity anode based on the Kirkendall effect, in which the “pod and peas” in the peapod‐like structure are composed of SnO2 and Cu nanoparticles, respectively, is tactfully designed and constructed. Compared to other SnOx‐based electrodes with different hollow structure designs in published reports, the unique peapod‐like Cu‐SnO2@CF anode delivers a remarkably high first reversible capacity of 5.80 mAh cm‐2 as well as excellent cycle stability with 66.7% capacity retention and ≈100% coulombic efficiency after 200 cycles at a current density of 1 mA cm–2, indicative of its quite promising application toward high‐performance lithium‐ion batteries.

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Stabilizing the reversible capacity of SnO2/graphene composites by Cu nanoparticles

Cited by 51 publications

References 62 publications

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Graphene nanocrystals in CO₂photoreduction with H₂O for fuel production

In Situ Synthesis of the Peapod‐Like Cu–SnO₂@Copper Foam as Anode with Excellent Cycle Stability and High Area Specific Capacity

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Stabilizing the reversible capacity of SnO2/graphene composites by Cu nanoparticles

Cited by 51 publications

References 62 publications

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Graphene nanocrystals in CO2photoreduction with H2O for fuel production

In Situ Synthesis of the Peapod‐Like Cu–SnO2@Copper Foam as Anode with Excellent Cycle Stability and High Area Specific Capacity

Contact Info

Product

Resources

About

Graphene nanocrystals in CO₂photoreduction with H₂O for fuel production

In Situ Synthesis of the Peapod‐Like Cu–SnO₂@Copper Foam as Anode with Excellent Cycle Stability and High Area Specific Capacity