Facile hydrothermal synthesis of SnCoS4/graphene composites with excellent electrochemical performance for reversible lithium ion storage

2016 ◽  
Vol 4 (34) ◽  
pp. 13194-13202 ◽  
Author(s):  
Jianbo Ye ◽  
Tao Chen ◽  
Qiannan Chen ◽  
Weixiang Chen ◽  
Zheting Yu ◽  
...  

An SnCoS4/graphene composite with uniformly distributed SnCoS4 hybrid nanocrystals was prepared by a one-pot hydrothermal route and exhibits excellent electrochemical performance for reversible lithium storage.

NANO ◽  
2019 ◽  
Vol 14 (03) ◽  
pp. 1950037 ◽  
Author(s):  
Bingning Wang ◽  
Xuehua Liu ◽  
Binghui Xu ◽  
Yanhui Li ◽  
Dan Xiu ◽  
...  

Three-dimensional reduced graphene oxide (RGO) matrix decorated with nanoflowers of layered MoS2 (denoted as 3D MoS2/RGO) have been synthesized via a facile one-pot stepwise hydrothermal method. Graphene oxide (GO) is used as precursor of RGO and a 3D GO network is formed in the first-step of hydrothermal treatment. At the second stage of hydrothermal treatment, nanoflowers of layered MoS2 form and anchor on the surface of previously formed 3D RGO network. In this preparation, thiourea not only induces the formation of the 3D architecture at a relatively low temperature, but also works as sulfur precursor of MoS2. The synthesized composites have been investigated with XRD, SEM, TEM, Raman spectra, TGA, N2 sorption technique and electrochemical measurements. In comparison with normal MoS2/RGO composites, the 3D MoS2/RGO composite shows improved electrochemical performance as anode material for lithium-ion batteries. A high reversible capacity of 930[Formula: see text]mAh[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] after 130 cycles under a current density of 200[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] as well as good rate capability and superior cyclic stability have been observed. The superior electrochemical performance of the 3D MoS2/RGO composite as anode active material for lithium-ion battery is ascribed to its robust 3D structures, enhanced surface area and the synergistic effect between graphene matrix and the MoS2 nanoflowers subunit.


2019 ◽  
Vol 48 (6) ◽  
pp. 2019-2027 ◽  
Author(s):  
Weiwei Sun ◽  
Si Chen ◽  
Yong Wang

A MOF-derived approach is used to fabricate a Fe–Mn–O/C hollow microsphere anode, which delivers excellent electrochemical performance for lithium-ion batteries.


RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 18054-18059 ◽  
Author(s):  
Shi-yong Zuo ◽  
Zhi-guo Wu ◽  
Shuan-kui Li ◽  
De Yan ◽  
Yan-hua Liu ◽  
...  

A composite of SnO2and three-dimensional graphene (SnO2/3DG) was fabricated using a hydrothermal method, with polystyrene balls (PS) as templates, and was found to have excellent electrochemical performance..


2015 ◽  
Vol 3 (35) ◽  
pp. 18036-18044 ◽  
Author(s):  
Qinghua Tian ◽  
Yang Tian ◽  
Zhengxi Zhang ◽  
Li Yang ◽  
Shin-ichi Hirano

The as-prepared SnO2@DSC exhibits excellent electrochemical performance due to the double-shelled support and confined void strategy.


Nanoscale ◽  
2014 ◽  
Vol 6 (7) ◽  
pp. 3536-3539 ◽  
Author(s):  
Liying Liang ◽  
Yimeng Xu ◽  
Yong Lei ◽  
Haimei Liu

3D porous AgVO3 nanowires/graphene composite aerogels show high electrical conductivity, high mechanical flexibility, and good electrochemical performance for lithium ion storage.


RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22848-22855
Author(s):  
Yunxia Jin ◽  
Shimin Wang ◽  
Jia Li ◽  
Sheng Qu ◽  
Liufang Yang ◽  
...  

Core–shell structure of ZnO@amorphous carbon shell was synthesized using a simple and effective method, and exhibited excellent electrochemical performance as anode of lithium-ion batteries.


2018 ◽  
Vol 6 (46) ◽  
pp. 23819-23827 ◽  
Author(s):  
Hailong Yue ◽  
Guangming Wang ◽  
Rencheng Jin ◽  
Qingyao Wang ◽  
Yuming Cui ◽  
...  

Sulfur-doped amorphous NiMoO4 on crystalline Fe2O3 nanosheets has been fabricated, which demonstrates excellent electrochemical performance as the anode for lithium ion batteries.


2013 ◽  
Vol 724-725 ◽  
pp. 1037-1041 ◽  
Author(s):  
Ling Min Yao ◽  
Xian Hua Hou ◽  
She Jun Hu ◽  
Xiao Qin Tang ◽  
Xiang Liu

Carbon-coated ZnFe2O4lithium anode with nanosize has been successfully synthesized by a one-pot green-chemical hydrothermal reaction with glucose as carbon source. An analysis of electrochemical performance showed that the prepared carbon-coated ZnFe2O4anode exhibited high capacity retention. The initial charge-discharge specific capacity was approximately 1388 mAhg-1and 1008 mAhg-1, respectively. And a reversible specific capacity could be maintained about 700 mAhg-1after 100 cycles at a constant current density of 100 mAg-1, indicating good cycle ability compared with majority reported literatures. The excellent electrochemical performance was related to the carbon coating and nanoparticles, with which the electric conductivity of the material increased and the volume expansion and pulverization of the particles became increasingly reduced.


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