Three-dimensional hollow spheres of porous SnO2/rGO composite as high-performance anode for sodium ion batteries

Kong, Zhen; Liu, Xuehua; Wang, Tao; Fu, Aiping; Li, Yanhui; Guo, Peizhi; Guo, Yu‐Guo; Li, Hongliang; Zhao, Xiu Song

doi:10.1016/j.apsusc.2019.01.210

Cited by 57 publications

(26 citation statements)

References 58 publications

(62 reference statements)

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“…This was associated with Sn 4+ form of SnO 2 , according to literature reports. [ 13 ] The V 2p spectra of V 2 CT x nanoparticles and 1:1 V 2 CT x @SnO 2 nanocomposite are shown in Figure 4c,d. The presence of V 4+ , V 2+ , and V 3+ peaks at 516.56, 513.9, and 515.26 eV were consistent with results from previous report.…”

Section: Resultsmentioning

confidence: 99%

“…[ 7–9 ] Although TMOs have high specific capacity and good safety performance, [ 10 ] the volume expansion of most TMOs during charging and discharging [ 11 ] significantly reduces their electrochemical performance, [ 12 ] limiting their wide scope of applications. A metal oxide, SnO 2 , has high theoretical capacity of 1494 mAh g −1 , and also has the same volume expansion problem, [ 13,14 ] resulting in a low capacity retention rate. Hence, suppression of volume expansion and agglomeration of SnO 2 nanoparticles is the key to SnO 2 electrode material.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Liu

Wang

et al. 2020

Energy Tech

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As an anode material, SnO2 nanoparticles have the problem of volume expansion and agglomeration, limiting their applications in energy storage. Herein, a nanocomposite material with hybridization structure using SnO2 interpenetrated MXene V2C as an anode for Li‐ion battery is fabricated by a simple method. The laminated structure of V2C can restrain the volume expansion of SnO2 nanoparticles anchored on the surface of V2C layers, whereas the intercalation of SnO2 nanoparticles into the V2CTx layer can effectively prevent the restacking of the V2CTx nanosheets in charging and discharging processes. This heterogeneous structure enables high Li‐ion storage on the surface and in the near‐surface region, which results in rapid transport of Li ions and optimizes the rate performance and cycling property. Consequently, the V2CTx@SnO2 nanocomposite has a large reversible capacity of ≈768 mAh g−1 after 200 cycles at a current density of 1000 mA g−1. Competitively, its reversible capacity can reach 260 mAh g−1 at high current density of 8000 mA g−1 after 1000 cycles, showing excellent cycling stability and superior rate capability. In addition to the high Li‐ion capacity offered by the composite structure, the anode also maintains the structural and mechanical integrity provided by MXene in charging and discharging processes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Liu

Wang

et al. 2020

Energy Tech

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“…Such an ultra‐long cycling stability is far in excess of other Sn‐, SnO 2 ‐, and SnS‐based electrodes reported in the literatures (Figure 3g; Table S5, Supporting Information). [ 9,10,19,24,49–54 ] Furthermore, at a relative lower current density of 0.5 A g −1 , the NGQD/Sn‐NG electrode shows a considerable capacity of 373 mAh g −1 after 300 cycles (Figure 3h), 86% retention of that at the 10th cycle (433 mAh g −1 ), which is much higher than that of metallic Sn (24 mAh g −1 , 6% retention after 50 cycles) and NGQD/Sn (57 mAh g −1 , 27% retention after 150 cycles). Although reduced graphene oxide (rGO) was also participated in the Sn‐NG blocks as necessary electric contact and confinement additive, poor cycling stability was achieved with the retention of only 21% (45 mAh g −1 ) after 100 cycles.…”

Section: Resultsmentioning

confidence: 99%

Tin Nanodots Derived From Sn²⁺/Graphene Quantum Dot Complex as Pillars into Graphene Blocks for Ultrafast and Ultrastable Sodium‐Ion Storage

Liu

Zhang

Qiu

et al. 2020

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Tin (Sn) is considered to be an ideal candidate for the anode of sodium ion batteries. However, the design of Sn-based electrodes with maintained longterm stability still remains challenging due to their huge volume expansion (≈420%) and easy pulverization during cycling. Herein, a facile and versatile strategy for the synthesis of nitrogen-doped graphene quantum dot (GQD) edge-anchored Sn nanodots as the pillars into reduced graphene oxide blocks (NGQD/Sn-NG) for ultrafast and ultrastable sodium-ion storage is reported. Sn nanodots (2-5 nm) anchored at the edges of "octopus-like" GQDs via covalent SnOC/SnNC bonds function as the pillars that ensure fast Na-ion/ electron transport across the graphene blocks. Moreover, the chemical and spatial (layered structure) confinements not only suppress Sn aggregation, but also function as physical barriers for buffering volume change upon sodiation/ desodiation. Consequently, the NGQD/Sn-NG with high structural stability exhibits excellent rate performance (555 mAh g −1 at 0.1 A g −1 and 198 mAh g −1 at 10 A g −1) and ultra-long cycling stability (184 mAh g −1 remaining even after 2000 cycles at 5 A g −1). The confinement-induced synthesis together with remarkable electrochemical performances should shed light on the practical application of highly attractive tin-based anodes for next generation rechargeable sodium batteries.

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“…3) The intimate contact of Pt nanoclusters with graphene spheres effectively resists the aggregation, Ostwald ripening, and detachment of Pt nanoclusters, enhancing the electrochemical stability. [ 55–57 ] Taken together, the catalytically active small‐sized Pt nanoclusters and 3D GHSs synergistically give rise to excellent HER activity and stability.…”

Section: Resultsmentioning

confidence: 99%

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

et al. 2020

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Efficient water splitting through electrocatalysis has been studied extensively in modern energy devices, whereas the development of catalysts with high activity and stability with low‐load Pt is still a great challenge. Through the spatial confinement effect and template method, herein, hollow graphene spheres with functionalized Pt nanoclusters (Pt/GHSs) are constructed and developed as effective electrocatalysts for the hydrogen evolution reaction (HER). Electrochemical tests show that Pt/GHSs exhibit a high electrocatalytic activity and stability compared with commercial Pt/C catalysts toward HER in alkaline media. The electric double‐layer capacitance value reaches 26.0 mF cm−2, indicating that Pt/GHSs have a large electrochemically active area. Meanwhile, the load of metal Pt in the Pt/GHSs is only one‐fifth of commercial Pt/C catalysts, which significantly reduces the production cost of the catalyst. Herein a new opportunity for the low‐cost mass production of efficient and stable catalysts for practical applications is provided.

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Three-dimensional hollow spheres of porous SnO2/rGO composite as high-performance anode for sodium ion batteries

Cited by 57 publications

References 58 publications

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Tin Nanodots Derived From Sn²⁺/Graphene Quantum Dot Complex as Pillars into Graphene Blocks for Ultrafast and Ultrastable Sodium‐Ion Storage

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

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Three-dimensional hollow spheres of porous SnO2/rGO composite as high-performance anode for sodium ion batteries

Cited by 57 publications

References 58 publications

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO2 Interpenetrated MXene V2C Architecture as Anode Materials

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO2 Interpenetrated MXene V2C Architecture as Anode Materials

Tin Nanodots Derived From Sn2+/Graphene Quantum Dot Complex as Pillars into Graphene Blocks for Ultrafast and Ultrastable Sodium‐Ion Storage

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

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Product

Resources

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Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Enhanced Reversible Capacity and Cyclic Performance of Lithium‐Ion Batteries Using SnO₂ Interpenetrated MXene V₂C Architecture as Anode Materials

Tin Nanodots Derived From Sn²⁺/Graphene Quantum Dot Complex as Pillars into Graphene Blocks for Ultrafast and Ultrastable Sodium‐Ion Storage