Hierarchical porous SnO 2 /reduced graphene oxide composites for high-performance lithium-ion battery anodes

Chen, Lechen; Ma, Xiaohang; Wang, Mozhen; Chen, Chunhua; Ge, Xinlei

doi:10.1016/j.electacta.2016.08.079

Cited by 19 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At high temperatures, from 400 to 500 °C, the weight loss is attributed to the destruction of the carbon skeleton. This decomposing process causes significant weight loss, indicating that there is no GO or rGO remaining in the samples [ 35 ]. The residual mass fraction for the GO sample still reaches 14.3%, which is probably due to the introduction of impurities during preparation process.…”

Section: Resultsmentioning

confidence: 99%

“…Habibzadeh et al [ 31 ] found that the thermal conductivity of water-based SnO 2 nanofluids at a weight fraction of 0.024% was enhanced up to 8.7%. The electrochemical performance, specific capacitance, and cycling stability of SnO 2 /rGO nanocomposite have been investigated as well [ 33 , 34 , 35 ]. However, to the best of our knowledge, there are few reports concentrating on the thermal conductivity of SnO 2 /rGO nanocomposite dispersed nanofluids.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Zhang

et al. 2017

Materials

View full text Add to dashboard Cite

With the rapid development of industry, heat removal and management is a major concern for any technology. Heat transfer plays a critically important role in many sectors of engineering; nowadays utilizing nanofluids is one of the relatively optimized techniques to enhance heat transfer. In the present work, a facile low-temperature solvothermal method was employed to fabricate the SnO2/reduced graphene oxide (rGO) nanocomposite. X-ray diffraction (XRD), thermogravimetric analysis (TGA), X-ray photoelectron spectroscope (XPS), Raman spectroscopy, and transmission electron microscopy (TEM) have been performed to characterize the SnO2/rGO nanocomposite. Numerous ultrasmall SnO2 nanoparticles with average diameters of 3–5 nm were anchored on the surface of rGO, which contain partial hydrophilic functional groups. Water-based SnO2/rGO nanofluids were prepared with various weight concentrations by using an ultrasonic probe without adding any surfactants. The zeta potential was measured to investigate the stability of the as-prepared nanofluid which exhibited great dispersion stability after quiescence for 60 days. A thermal properties analyzer was employed to measure thermal conductivity of water-based SnO2/rGO nanofluids, and the results showed that the enhancement of thermal conductivity could reach up to 31% at 60 °C under the mass fraction of 0.1 wt %, compared to deionized water.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Zhang

et al. 2017

Materials

View full text Add to dashboard Cite

show abstract

“…These developed nanostructures include nanotubes, nanowires, nanoboxes, hollow nanospheres, nanosheets, nanocubes, nanofibers, and nanoflowers, etc., all of which display improved cycling stability and rate capability due to their clever structural design and nanoscale dimensions. Recently, much more research works have been focused on introducing a carbon layer on the SnO 2 nanostructures, which can significantly enhance the cycling performance owing to the synergistic effect of the carbon layer and the clever structures . For example, Lou and co‐workers have designed and synthesized the uniform N‐doped carbon‐coated SnO 2 sub‐microboxes using Fe 2 O 3 sub‐microcubes as removable templates .…”

Section: Introductionmentioning

confidence: 99%

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Cheng

Wang

et al. 2017

Small

View full text Add to dashboard Cite

Due to the high theoretical capacity as high as 1494 mAh g , SnO is considered as a potential anode material for high-capacity lithium-ion batteries (LIBs). Therefore, the simple but effective method focused on fabrication of SnO is imperative. To meet this, a facile and efficient strategy to fabricate core-shell structured C/SnO hollow spheres by a solvothermal method is reported. Herein, the solid and hollow structure as well as the carbon content can be controlled. Very importantly, high-yield C/SnO spheres can be produced by this method, which suggest potential business applications in LIBs field. Owing to the dual buffer effect of the carbon layer and hollow structures, the core-shell structured C/SnO hollow spheres deliver a high reversible discharge capacity of 1007 mAh g at a current density of 100 mA g after 300 cycles and a superior discharge capacity of 915 mAh g at 500 mA g after 500 cycles. Even at a high current density of 1 and 2 A g , the core-shell structured C/SnO hollow spheres electrode still exhibits excellent discharge capacity in the long life cycles. Consideration of the superior performance and high yield, the core-shell structured C/SnO hollow spheres are of great interest for the next-generation LIBs.

show abstract

“…The Raman spectra of GO and SnO 2 /rGO are shown in Figure . The spectra exhibits two intense peaks, D band (1348 cm −1 ) and G band (1589 cm −1 ) which are related to the vibration of carbon atoms reflecting the disorder of the structure and the in‐plane vibration of sp 2 ‐bonded carbon domains, respectively . It can be seen that the ratios between D band and G band of SnO 2 /rGO (I D /I G =1.20) is obviously higher than GO (0.77).…”

Section: Resultsmentioning

confidence: 98%

Freeze‐Drying‐Assisted Synthesis of Porous SnO₂/rGO Xerogels as Anode Materials for Highly Reversible Lithium/Sodium Storage

Jiang

et al. 2018

ChemElectroChem

View full text Add to dashboard Cite

Three‐dimensional porous SnO2/rGO xerogels with superior cycling performance in lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs) are fabricated through a freeze‐drying‐assisted method. SnO2 nanoparticles (5 nm in diameter) are homogeneously attached to the surface of graphene sheets without self‐aggregation. The heterostructured SnO2/rGO xerogel possesses numerous micron‐sized pores that can efficiently buffer the volumetric change of SnO2 during the charge/discharge process and provide multidimensional channels, improving the conductivity between active materials and electrolyte. The SnO2/rGO xerogel exhibits excellent electrochemical performance, both in LIBs and SIBs, owing to its particular porous structure. For LIBs, it delivers a high initial discharge capacity of 1670.5 mAh g−1 in the first cycle and remains at 1139.4 mAh g−1 after 166 cycles at a current density of 0.1 A g−1. The SnO2/rGO xerogel also delivers a high discharge capacity of 189.4 mAh g−1 without capacity loss over 266 cycles at a current density of 0.5 A g−1 for SIBs. The SnO2/rGO xerogel can be used as an electrode material in both LIBs and SIBs, and can maintain an excellent rate performance and cyclic performance, owing to the abundant porosity and high conductivity.

show abstract

Hierarchical porous SnO 2 /reduced graphene oxide composites for high-performance lithium-ion battery anodes

Cited by 19 publications

References 44 publications

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Freeze‐Drying‐Assisted Synthesis of Porous SnO₂/rGO Xerogels as Anode Materials for Highly Reversible Lithium/Sodium Storage

Contact Info

Product

Resources

About

Hierarchical porous SnO 2 /reduced graphene oxide composites for high-performance lithium-ion battery anodes

Cited by 19 publications

References 44 publications

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Investigation on Synthesis, Stability, and Thermal Conductivity Properties of Water-Based SnO2/Reduced Graphene Oxide Nanofluids

Large‐Scale Fabrication of Core–Shell Structured C/SnO2 Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Freeze‐Drying‐Assisted Synthesis of Porous SnO2/rGO Xerogels as Anode Materials for Highly Reversible Lithium/Sodium Storage

Contact Info

Product

Resources

About

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Freeze‐Drying‐Assisted Synthesis of Porous SnO₂/rGO Xerogels as Anode Materials for Highly Reversible Lithium/Sodium Storage