A one-step approach towards carbon-encapsulated hollow tin nanoparticles and their application in lithium batteries

被引：170

作者：

Cui, Guanglei ^{[1
]}

Hu, Yong-Sheng ^{[2
]}

Zhi, Linjie ^{[1
]}

Wu, Dongqing ^{[1
]}

Lieberwirth, Ingo ^{[1
]}

Maier, Joachim ^{[2
]}

Muellen, Klaus ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[2] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

SMALL | 2007年 / 3卷 / 12期

关键词：

carbon; electrodes; lithium batteries; nanomaterials; tin;

D O I：

10.1002/smll.200700350

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A one-step approach towards carbon encapsulated hollow tin nanoparticles and their application in lithium batteries is presented. ATP-Sn, a tin-containing complex with active allyl groups that can be polymerized at relatively low temperatures was selected as precursor and solid state pyrolysis of ATP-Sn in a sealed quartz tube with a vacuum of 10-7Pa at 700°C resulted in a black powder that was subjected to purification by tituration, sonication, and centrifugation to obtain Sn nanoparticles encapsulated with carbon. X-ray diffraction demonstrated that the obtained product is a mixture of Sn and carbon, while transmission electron microscopy showed that the purified product was composed of very small nanoparticles with a diameter range of 5 to 20 nm and all the particles were encapsulated by an irregular carbon layer and about 60% of particles were hollow spheres.

引用

页码：2066 / 2069

页数：4

共 57 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].