Low temperature, Cost-effective and Green Methods to Carbon Nanohorn Synthesis

چکیده مقاله

One significant branch of carbon-based materials is carbon nanohorn (CNH). Several methods have been used to synthesize CNH. Most of them are based on high temperature methods. This is an overview of low temperature methods for CNHs synthesis. Mechanism of two main techniques were discussed; Transformation from single-walled carbon nanotubes to nanohorns by simple heating at 1600 ^OC and synthesis of carbon nanohorn using palm olein as a precursor. The formation of CNH was accomplished using chemical vapour deposition at 950 ^OC. A bio-renewable resource, palm olein, and a mixture of zinc nitrate and ferrocene were used as the carbon precursor and catalyst, respectively. The other route to synthesize CNH at a lower than normal temperature is transformation of single-walled carbon nanotubes as the result of the catalytic effect of molten Pd.

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