Ternary Cu2SnS3 cabbage-like nanostructures: large-scale synthesis and their application in Li-ion batteries with superior reversible capacity

Nanoscale ◽  
2011 ◽  
Vol 3 (10) ◽  
pp. 4389 ◽  
Author(s):  
Baihua Qu ◽  
Hongxing Li ◽  
Ming Zhang ◽  
Lin Mei ◽  
Libao Chen ◽  
...  
2011 ◽  
Vol 115 (22) ◽  
pp. 11302-11305 ◽  
Author(s):  
Jiazheng Wang ◽  
Ning Du ◽  
Hui Zhang ◽  
Jingxue Yu ◽  
Deren Yang

2014 ◽  
Vol 2 (34) ◽  
pp. 13949-13954 ◽  
Author(s):  
Wenjia Zhao ◽  
Ning Du ◽  
Chengmao Xiao ◽  
Hao Wu ◽  
Hui Zhang ◽  
...  

We demonstrate the synthesis of Ag–Si core–shell nanowall arrays via a simple displacement reaction and subsequent RF-sputtering deposition.


RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2407-2414 ◽  
Author(s):  
Dan Shao ◽  
Inna Smolianova ◽  
Daoping Tang ◽  
Lingzhi Zhang

Novel core–shell structured Si/S-doped carbon composite with buffering voids prepared by hydrothermal method and followed by carbonization and removal of template layer, exhibiting a reversible capacity of 664 mA h g−1 over 300 cycles.


Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 18
Author(s):  
Tahar Azib ◽  
Claire Thaury ◽  
Fermin Cuevas ◽  
Eric Leroy ◽  
Christian Jordy ◽  
...  

Embedding silicon nanoparticles in an intermetallic matrix is a promising strategy to produce remarkable bulk anode materials for lithium-ion (Li-ion) batteries with low potential, high electrochemical capacity and good cycling stability. These composite materials can be synthetized at a large scale using mechanical milling. However, for Si-Ni3Sn4 composites, milling also induces a chemical reaction between the two components leading to the formation of free Sn and NiSi2, which is detrimental to the performance of the electrode. To prevent this reaction, a modification of the surface chemistry of the silicon has been undertaken. Si nanoparticles coated with a surface layer of either carbon or oxide were used instead of pure silicon. The influence of the coating on the composition, (micro)structure and electrochemical properties of Si-Ni3Sn4 composites is studied and compared with that of pure Si. Si coating strongly reduces the reaction between Si and Ni3Sn4 during milling. Moreover, contrary to pure silicon, Si-coated composites have a plate-like morphology in which the surface-modified silicon particles are surrounded by a nanostructured, Ni3Sn4-based matrix leading to smooth potential profiles during electrochemical cycling. The chemical homogeneity of the matrix is more uniform for carbon-coated than for oxygen-coated silicon. As a consequence, different electrochemical behaviors are obtained depending on the surface chemistry, with better lithiation properties for the carbon-covered silicon able to deliver over 500 mAh/g for at least 400 cycles.


2016 ◽  
Vol 18 (29) ◽  
pp. 19531-19535 ◽  
Author(s):  
Chunshuang Yan ◽  
Gang Chen ◽  
Jingxue Sun ◽  
Xin Zhou ◽  
Chade Lv

C&N co-doped Co3O4 hollow nanofibres are prepared by combining the electrospinning technique and the hydrothermal method, which show a high reversible capacity and excellent cycling stability as anode materials for Li-ion batteries.


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