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Decomposition of Fe5C2 catalyst particles in carbon nanofibers during TEM observation
carbon nanofiber HRTEM iron carbide
2010/1/18
The effect of an electron beam on nanoparticles of two Fe carbide catalysts inside a carbon nanofiber was investigated in a transmission electron microscope. Electron beam exposure does not result in ...
Present status and future prospects of spherical aberration corrected TEM/STEM for study of nanomaterials
spherical aberration correction TEM/STEM nanomaterials electron diffraction three-dimensional observation
2010/10/13
The present status of Cs-corrected TEM/STEM is described from the viewpoint of the
observation of nanomaterials. Characteristic features in TEM and STEM are explained using
the experimental data obt...
钛酸纳米管的制备及 TEM表征
纳米
2007/12/12
摘要 采用水热合成法以金红石型纳米TiO2粉为原料制备钛酸纳米管, 考察了搅拌、酸洗及焙烧温度对纳米管的形成和结构的影响, 并通过TEM观察了产物的形貌、结构. 结果显示: 持续搅拌能促进原料粉末的定向生长, 有利于形成钛酸纳米片;酸洗是纳米管的形成阶段; 300℃是纳米管转变为长棒状晶柱的临界温度. 实验表明以优化的水热合成法制得的纳米管形貌均一, 长度超过1μm, 钛酸纳米管长径比为125:1...