Olivary particles: Unique carbon microstructure synthesized by catalytic pyrolysis of acetone

Article Abstract:

Olivary (olive-shaped) carbon particles (OCPs) with a diameter of ~1.5-2mum at the middle and a length ~3-4(mu)m were synthesized by pyrolysis of acetone with metallic zinc as the catalyst at 600 degree Celsius. An interesting arrangement of crystal planes of carbon was found that (002) planes of graphite near the surface are vertical to the surface of the OCPs and not parallel as usual.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Acetone, Catalysis, Structure

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Formation of carbon nanotubes and cubic and spherical nanocages

Article Abstract:

A report that the correlative reaction factors influence the morphology of carbon nanomaterials and elucidate the formation mechanism of different carbon structures is presented. Detailed examination of the high-resolution transmission electron microscopy (HRTEM) image reveals that the bamboo-shaped carbon nanotubes consisted of slanted graphene layers with respect to the tube axis.

Usage, Transmission electron microscopes

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Synthesis of carbon nanotubes and nanobelts through a medial- reduction method

Article Abstract:

Two types of carbon nanotubes were prepared by using metallic Mg powder, as the reductant in the reaction system. The experimental results indicate that the spiral growth mechanism might be operative during the formation of carbon nanotubes.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Manganese

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