Surfactant-assisted synthesis of Sn nanoparticles via solution plasma technique
Surfactant-assisted synthesis of Sn nanoparticles via solution plasma technique
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DOI：
10.1016/j.apt.2013.11.001
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发表时间：
2014-03-01
影响因子：
5.2
通讯作者：
Akiyama, Tomohiro
中科院分区：
文献类型：
--
作者：
Saito, Genki;Zhu, Chunyu;Akiyama, Tomohiro
采用溶液等离子体合成法直接从金属锡电极制备了纳米锡颗粒。在表面活性剂十六烷基三甲基溴化铵(CTAB)存在下合成了SnNPs，并考察了CTAB浓度对SnNPs的影响。在没有添加CTAB的情况下，SnO片层析出。当CTAB的浓度为200×10~(-6)g·ml~(-1)时，合成了小于200 nm的纳米锡纳米粒子。对SnO极板和SnNPs作为锂离子电池负极材料的电化学性质进行了分析。由于石墨为体积膨胀提供了缓冲空间，使锡纳米颗粒与石墨的复合材料提高了循环稳定性。在负载量为30wt%的SnNPs的情况下，20次循环后的容量为414 mA h g(-1)。(C)2013年日本粉末技术学会。由Elsevier B.V.和日本粉末技术学会出版。版权所有。
We have adopted a solution plasma synthesis for preparing Sn nanoparticles (Sn-NPs) directly from metallic Sn electrode. The Sn-NPs were synthesized in the presence of the surfactant, cetyltrimethylammonium bromide (CTAB), and the effect of the concentration of CTAB on the Sn-NPs was investigated. Without CTAB addition, SnO plates were precipitated. Sn-NPs with less than 200 nm were synthesized at a high concentration of 200 x 10(-6) g ml(-1) of CTAB. Electrochemical properties of SnO plates and Sn-NPs were analyzed for use as an anode material in Li-ion batteries. A composite of Sn-NPs and graphite enhanced the cyclic stability owing to the buffer space provided by the graphite for volume expansion. In the case of the 30 wt% loaded Sn-NPs, the capacity was measured to be 414 mA h g(-1) after 20 cycles. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.