SnS 2 Nanoflakes Anchored Graphene obtained by Liquid Phase Exfoliation and MoS 2 Nanosheet Composites as Lithium and Sodium Battery Anodes

Zhang, Xiaoyan; Xiang, Jianyong; Mu, Congpu; Wen, Fusheng; Yuan, Shijun; Zhao, Jing; Xu, Dongyang; Su, Can; Liu, Zhongyuan

doi:10.1016/j.electacta.2017.01.036

Cited by 54 publications

(15 citation statements)

References 43 publications

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“…Compared with elemental tin and other tin‐based compounds, SnS 2 has the best buffering capability (large interlayer spacing c= 0.5899 nm) for the huge volume changes in alloying processes . However, the large c ‐direction atomic spacing weakens the interlayer van der Waals interaction, which results in poor electron transportation from sheet to sheet and finally causes remarkable capacity loss and inferior rate capability .…”

Section: Introductionmentioning

confidence: 99%

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

Wang

Liu

et al. 2018

Chemistry A European J

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Tin disulfide, as a promising high-capacity anode material for sodium-ion batteries, exhibits high theoretical capacity but poor practical electrochemical properties due to its low electrical conductivity. Constructing heterostructures has been considered to be an effective approach to enhance charge transfer and ion-diffusion kinetics. In this work, composites of SnS /Sb S heterostructures with reduced graphene oxide nanosheets were synthesized by a facile one-pot hydrothermal method. When applied as anode material in sodium-ion batteries, the composite showed a high reversible capacity of 642 mA h g at a current density of 0.2 A g and good cyclic stability without capacity loss in 100 cycles. In particular, SnS /Sb S heterostructures exhibited outstanding rate performance with capacities of 593 and 567 mA h g at high current densities of 2 and 4 A g , respectively, which could be ascribed to the dramatically improved Na diffusion kinetics and electrical conductivity.

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Section: Introductionmentioning

confidence: 99%

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

Wang

Liu

et al. 2018

Chemistry A European J

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“…Zhang et al prepared MoS 2 nanosheetgraphene-SnS 2 nanoflakes composites by am icrowave-assisted hydrothermalm ethod. [82] When applieda se lectrode materials for LIB and SIB, thesec omposites exhibitede nhanced electrochemical properties. Wang et al synthesized TiO 2 @Carbon@MoS 2 hierarchical nanotubes for LIB, [96] which delivered the large capacity of 590 mAh g À1 at 1.0Ag À1 after 200 cycles.O ur group demonstrated that the additive effects of nanosheets for TMD-based electrodem aterials originated from the high surfacea rea and prevention of self-restacking.…”

Section: Libs/sibsmentioning

confidence: 99%

Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

Patil

et al. 2018

Chemistry A European J

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Among many types of nanostructured inorganic materials, highly anisotropic 2D nanosheets provide unique advantages in designing and synthesizing efficient electrode and electrocatalyst materials for novel energy storage technologies. 2D inorganic nanosheets boast lots of unique characteristics such as high surface area, short ion diffusion path, tailorable compositions, and tunable electronic structures. These merits of 2D inorganic nanosheets render them promising candidate materials as electrodes for diverse secondary batteries and supercapacitors, and electrocatalysts. A wide spectrum of examples is presented for inorganic nanosheet-based electrodes and electrocatalysts. Future perspectives in research about 2D nanosheet-based functional materials are discussed to provide insight for the development of next-generation energy storage systems using 2D nanostructured materials.

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“…SnS 2 is a hexagonal structure semiconductor with large lattice constant along (001) direction (0.59 nm) . It is easily to obtain ultrathin SnS 2 nanosheets and many work prepared composites with this ultrathin SnS 2 nanosheets . SnS 2 has relative narrow bandgap (~2.4 eV) and high specific surface area which is very suitable to be coupled with ZnS for constructing heterojunction.…”

Section: Introductionmentioning

confidence: 99%

High carriers transmission efficiency ZnS/SnS₂ heterojunction channel toward excellent photoelectrochemical activity

et al. 2018

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ZnS has been found superiority in photoelectrochemistry for the fast response of photo-inducing and its high conductor band position (~0.8 eV) results in strong reduction ability for hydrogen production. However, the solar absorbance of ZnS is much low for the wide band gap (~3.2 eV) and the carriers' migration efficiency also need to be improved. Here, nano-ZnS were coupled with ultrathin SnS 2 nanosheets as heterojunction composites. This heterojunction composite demonstrated largely increase in specific surface area (from 4 to 12-25 m 2 /g), obvious improvement of UV-vis absorbance and narrower band gap. Furthermore, the carriers' migration efficiency of ZnS/SnS 2 heterojunction has been confirmed to be much higher by photocurrent response and electrochemical impedance spectroscopy. Due to the improvement in structure, compared with pristine ZnS, this ZnS/SnS 2 heterojunction exhibited vast enhancement in photoelectrochemical performance. The composite with best activity exhibited 12.8 times enhancement in photocurrent density. The conduction band and valence band of ZnS are both more negative than those of SnS 2 , the photo-induced electrons at the conduction band of ZnS will transfer into the conduction band of SnS 2 while the photoinduced holes at the valence band of SnS 2 will transfer into the valence band of ZnS. In this way, the photo-produced carriers will flow into different semiconductors and the carriers' migration efficiency is enhanced. The work improves a new structure to develop the heterojunction property for photoelectrochemical application. K E Y W O R D Sheterojunction, photoelectrochemistry, SnS 2 , ZnS

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SnS 2 Nanoflakes Anchored Graphene obtained by Liquid Phase Exfoliation and MoS 2 Nanosheet Composites as Lithium and Sodium Battery Anodes

Cited by 54 publications

References 43 publications

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

High carriers transmission efficiency ZnS/SnS₂ heterojunction channel toward excellent photoelectrochemical activity

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SnS 2 Nanoflakes Anchored Graphene obtained by Liquid Phase Exfoliation and MoS 2 Nanosheet Composites as Lithium and Sodium Battery Anodes

Cited by 54 publications

References 43 publications

SnS2/Sb2S3 Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

SnS2/Sb2S3 Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

High carriers transmission efficiency ZnS/SnS2 heterojunction channel toward excellent photoelectrochemical activity

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Product

Resources

About

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

SnS₂/Sb₂S₃ Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium‐Ion Batteries

High carriers transmission efficiency ZnS/SnS₂ heterojunction channel toward excellent photoelectrochemical activity