Sandwich-like CNTs@SnO 2 /SnO/Sn anodes on three-dimensional Ni foam substrate for lithium ion batteries

Zhang, Jing; Ma, Zengsheng; Jiang, Wenjuan; Zou, Youlan; Wang, Yan; Lu, Chunsheng

doi:10.1016/j.jelechem.2016.01.043

Cited by 67 publications

(20 citation statements)

References 34 publications

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“…As observed from Fig. 4c , the Sn 3d photoelectron peak of the Raw Material was well matched with the peaks of pure SnO 2 in the previous literatures 32 33 . However, the XPS photoelectron peak of Sn 3d in Fig.…”

Section: Resultssupporting

confidence: 87%

“…4c can be resolved into Sn 2+ and Sn 4+ . And both of Sn 3d 5/2 and Sn 3d 3/2 clearly showed two groups of Sn chemical bonding energies of 486.6 eV and 495.0 eV for Sn 4+ , and 494.3 eV and 485.9 eV for Sn 2+ 32 33 . Our previous studies on the reduction roasting of SnO 2 have proved that there is no SnO existing in the roasted samples 14 20 21 .…”

Section: Resultsmentioning

confidence: 93%

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Formation mechanisms of Fe3−xSnxO4 by a chemical vapor transport (CVT) process

Zhang

Liu

et al. 2017

Sci Rep

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Our former study reported that Fe-Sn spinel (Fe3−xSnxO4) was easily formed when SnO2 and Fe3O4 were roasted under CO-CO2 atmosphere at 900–1100 °C. However, the formation procedure is still unclear and there is a lack of theoretical research on the formation mechanism of the Fe-Sn spinel. In this work, the reaction mechanisms between SnO2 and Fe3O4 under CO-CO2 atmosphere were determined using XRD, VSM, SEM-EDS, XPS, etc. The results indicated that the formation of Fe3−xSnxO4 could be divided into four steps: reduction of SnO2 to solid phase SnO, volatilization of gaseous SnO, adsorption of gaseous SnO on the surface of Fe3O4, and redox reaction between SnO and Fe3O4. During the roasting process, part of Fe3+ in Fe3O4 was reduced to Fe2+ by gaseous SnO, and meanwhile Sn2+ was oxidized to Sn4+ and entered into Fe3−xSnxO4. The reaction between SnO2 and Fe3O4 could be summarized as Fe3O4 + xSnO(g) → Fe3−xSnxO4 (x = 0–1.0).

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 93%

Formation mechanisms of Fe3−xSnxO4 by a chemical vapor transport (CVT) process

Zhang

Liu

et al. 2017

Sci Rep

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show abstract

“…In Fig. 3d, the peaks at 486.9eV and 495.3 eV were caused by the Sn 4+ , other two peaks (482.1 eV and 493.5 eV) were attributed to the Sn 0 [40]. The data of the XPS showed that the atomic ration of Cu to The scanning electron microscopy (SEM) images of the as-prepared samples were exhibited in Fig.…”

Section: Resultsmentioning

confidence: 94%

Pomegranate-like porous carbon coated CuxSny/Sn/SnO2 submicrospheres as superior lithium ion battery anode

Wang

Jiang

et al. 2017

Chemical Engineering Journal

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The Cu-Sn alloy compounds have low volume expansion but suffer from poor cycling performance as anode materials for lithium ion batteries (LIBs). In order to improve the electrochemical performance, the pomegranate-like porous carbon coated Cu x Sn y /Sn/SnO 2 submicrospheres assembled by nanoparticles (abbreviated as pomegranate-like Cu x Sn y /Sn/SnO 2 /C submicrospheres) were facilely prepared by in situ polymerization of dopamine (DA) on the surface of CuSn(OH) 6 submicrospheres, followed by carbonization and reduction in H 2 /Ar atmosphere. Based on the advantages of nanometer-sized particle, porous structure and amorphous carbon coated, the as-prepared pomegranate-like Cu x Sn y /Sn/SnO 2 /C submicrospheres behaved excellent cycling and rate performance as anode materials for LIBs. At the current density of 200 mA g-1 , the electrode materials could keep a capacity of 604 mAh g-1 after 150 cycles. Importantly, pomegranate-like Cu x Sn y /Sn/SnO 2 submicrospheres could maintain the initial structure after 150 cycles. Relied on the excellent electrochemical performance, the pomegranate-like Cu x Sn y /Sn/SnO 2 /C submicrospheres were expected to become a promising anode material for LIBs.

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“…Transition metal nitrides (TMNs) have arose public concern for many electrochemical reactions due to the low cost, high conductivity, thermal stability and similar electronic structure with the noble metals. [1][2][3][4] Titanium nitride (TiN), particularly, is an amazing target that possesses superior electrical conductivity (4000-55500 S cm À 1 ), excellent electrochemical and mechanical stability, has been efficiently applied in various reactions that require noble metal catalysts, including fuel cells, [5][6][7][8][9][10][11] supercapacitors, [12][13][14][15][16][17][18][19][20] dye-sensitized solar cells, [21][22][23][24][25][26][27][28] lithium ion and lithium air batteries, [29][30][31] and so on. In addition, TiN was also widely investigated as an ideal alternative catalyst support to perishable carbon support, and the resulting catalysts exhibited improved activity and durability.…”

Section: Introductionmentioning

confidence: 99%

Engineering of Hierarchical and Three‐Dimensional Architectures Constructed by Titanium Nitride Nanowire Assemblies for Efficient Electrocatalysis

et al. 2019

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Electrocatalysts that exhibit both, high performance and durability are essential for the promotion and commercialization of energy conversion devices. Transition metal nitrides (TMNs) hold great potential in many electrochemical catalytic processes, whereas the rational syntheses of highly open and three‐dimensional titanium nitride‐based nanostructures through a facile and efficient strategy is still a challenge. Herein, a scalable and effective method is proposed for the rational synthesis of mono‐ or bi‐metallic titanium nitride with three‐dimensional urchin‐like porous structures, which exhibit high electrochemical stability and structure durability. When being used as the support, the resultant electrocatalyst possesses much higher activity and durability in oxygen reduction reaction as well as methanol oxidation reaction. This work provides a general approach for the rational design of TMN‐based electrocatalysts or devices for application in energy conversion and storage technologies.

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Sandwich-like CNTs@SnO 2 /SnO/Sn anodes on three-dimensional Ni foam substrate for lithium ion batteries

Cited by 67 publications

References 34 publications

Formation mechanisms of Fe3−xSnxO4 by a chemical vapor transport (CVT) process

Formation mechanisms of Fe3−xSnxO4 by a chemical vapor transport (CVT) process

Pomegranate-like porous carbon coated CuxSny/Sn/SnO2 submicrospheres as superior lithium ion battery anode

Engineering of Hierarchical and Three‐Dimensional Architectures Constructed by Titanium Nitride Nanowire Assemblies for Efficient Electrocatalysis

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