作者: Youhei Fujimura , Shigeo Itoh , Hirofumi Takikawa
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摘要: A carbon substance comprises a structure and line-shaped bodies, the having size ranging from about 1 μm to 100 including metal or metallic oxide, bodies diameters smaller than 200 nm as main component thereof growing radially surface of structure. method for manufacturing uses thermal decomposition source gas containing in vicinity catalyst, wherein catalyst first second materials, material being Ni oxide In an oxide; is performed at temperature 675° C. 750° An electron emission element material. composite includes its matrix.