Onion-like graphitic particles observed in wood charcoal
Onion-like graphitic particles observed in wood charcoal
复制标题
在木炭中观察到洋葱状石墨颗粒
DOI：
10.1007/bf00779560
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发表时间：
2000
影响因子：
2.9
通讯作者：
Koh Kikuchi
中科院分区：
文献类型：
--
作者：
T. Hata;Y. Imamura;Emiko Kobayashi;K. Yamane;Koh Kikuchi
洋葱状石墨颗粒是Iijima在电弧放电沉积的炭黑中首次观察到的。1在研究石墨真空蒸发法制备的炭黑的微观结构时，用高分辨电子显微镜观察到了洋葱状结构。Ugarte在用高能（300 kV）电子束长时间照射碳烟灰后也发现了这些结构。2据报道，其他技术也可以从其他物质中产生类似的结构。3虽然洋葱状石墨颗粒现在是碳的一种定义明确的同素异形纳米相，4但迄今为止还没有在木炭中发现它们。
Onion-like graphitic particles were first observed by Iijima in ark-discharge-deposited carbon blacks. 1 When the microstructure of the carbon blacks produced by vacuum evaporation of graphite was studied, onion-like structures were found by high-resolution electron microscopy. These structures were also found by Ugarte after irradiating carbon soot with high-energy (300kV) electron beams for a prolonged period. 2 Other techniques have also been reported to produce similar structures from other substances. 3 Although onion-like graphitic particles are now a well-defined allotropic nanophase of carbon, 4 they have not been found in wood charcoal thus far.