Microwave absorption and catalytic activity of carbon nanotubes decorated with cobalt nanoparticles
Microwave absorption and catalytic activity of carbon nanotubes decorated with cobalt nanoparticles
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DOI：
10.1016/j.matlet.2012.02.007
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发表时间：
2012-05-15
影响因子：
3
通讯作者：
Cai, Wei
中科院分区：
文献类型：
--
作者：
Sui, Jiehe;Zhang, Cheng;Cai, Wei
通过在多元醇溶液中对乙酰丙酮酸钴和碳纳米管进行原位高温分解，在碳纳米管（CNTs）表面成功合成了钴纳米颗粒（Co NPs）。结果表明，CNTs/Co纳米复合材料中的Co NPs结构为立方相和六方相的混合体，具有铁磁性。CNTs/Co纳米复合材料的微波吸收率高于纯Co纳米粒子和纯CNTs纳米粒子。CNTs/Co纳米复合材料对高氯酸铵（AP）的催化活性高于纯Co纳米复合材料。简要讨论了提高CNTs/Co纳米复合材料微波吸收和催化活性的机理。(C) 2012 Elsevier B.V.版权所有
Cobalt nanoparticles (Co NPs) have been successfully synthesized on the surface of carbon nanotubes (CNTs) by in situ high-temperature decomposition of cobalt(III) acetylacetonate and CNTs in polyol solution. It is found that the structure of the Co NPs among the CNTs/Co nanocomposites is the mixture of cubic and hexagnonal phase and the nanocomposites are ferromagnetic. Microwave absorption of the CNTs/Co nanocomposites is higher than that of pure Co NPs and pure CNTs. The catalytic activity for ammonium perchlorate (AP) of CNTs/Co nanocomposites is higher than that of pure Co NPs. The mechanism on the improvement of microwave absorption and catalytic activity of CNTs/Co nanocomposites is discussed briefly. (C) 2012 Elsevier B.V. All rights reserved.