Direct synthesis of carbon nanofibers on the surface of copper powder

Larisa I. Nasibulina, Tatiana S. Koltsova, Tuomo Joentakanen, Albert G. Nasibulin, Oleg V. Tolochko, Jari E.M. Malm, Maarit J. Karppinen, Esko I. Kauppinen

Research output: Contribution to journalLetterpeer-review

26 Citations (Scopus)

Abstract

A novel approach to synthesize carbon nanofibers (CNFs) directly on the surface of metal μm-sized particles to evenly disperse the carbon nanomaterials in a composite material was proposed. As a metal matrix, 5-10 μm copper particles were utilized. As a carbon source, C2H 2, CH4 and CO were examined. The best conditions were found to be in C2H2 (30 cm3/min) and H 2 (260 cm3/min) atmosphere at the temperature of 750 °C. The composites based on copper and CNFs prepared by vacuum hot pressing showed the increase in hardness from 35 to 60 kg/mm2 almost retaining pure copper electrical properties.

Original languageEnglish
Pages (from-to)4559-4562
Number of pages4
JournalCarbon
Volume48
Issue number15
DOIs
Publication statusPublished - Nov 2010
Externally publishedYes

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