A large-scale carbon spinel nanocomposite has been fabricated by a chemical vapor deposition method using nanoparticles as catalysts. A uniform mixture of CNTs and nanoparticles was obtained simultaneously. The structure and chemical composition of the product were investigated using various techniques, such as x-ray diffraction, high-resolution transmission electron microscopy, and electron energy loss spectroscopy. It was found that the particles functionalized on CNTs were cubic phase . Microwave absorption of the nanocomposites at 2–18 GHz is evidently enhanced, as compared with that of both pure CNTs and nanoparticles. The enhancement mechanism is discussed based on magnetization hysteresis loop measurement and electromagnetic theory.
Fabrication and microwave absorption of carbon spinel nanocomposite
Author to whom correspondence should be addressed: current address: Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan; electronic mail: email@example.com
R. C. Che, C. Y. Zhi, C. Y. Liang, X. G. Zhou; Fabrication and microwave absorption of carbon spinel nanocomposite. Appl. Phys. Lett. 16 January 2006; 88 (3): 033105. https://doi.org/10.1063/1.2165276
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