Synthesis of various nano carbon filaments by CVD over catalysts loaded on a metal oxide composite

Tsujino, Gai; Ota, Hiraku; Nishitani‐Gamo, Mikka; Nakagawa, Kiyoharu; Oda, Hirokazu

doi:10.1016/j.carbon.2015.02.028

Cited by 2 publications

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“…As is well known, CNTs or CNFs are grown using a catalyst (Co, Fe, or Ni) by thermal chemical vapor deposition (CVD). 18,19) CoNPs arranged on the surfaces of Cu-Co particles will act as the catalyst for CNF growth to synthesize HCuP. In what follows, we will demonstrate (i) the synthesis of Cu-Co particles with CoNPs on their surfaces, (ii) the synthesis of CNFs from the catalyst (i.e., CoNPs), and (iii) the preparation of paste using HCuP.…”

Section: Introductionmentioning

confidence: 98%

Synthesis of copper particles covered with cobalt-catalyzed carbon nanofibers and their application to air-curable conductive paste

Ohnishi

Nakasuga

Nakagawa

2017

Jpn. J. Appl. Phys.

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Sea urchin-shaped hybrid copper powder (HCuP), which is characterized by copper alloy powder particles covered with vertically aligned Co-catalyzed carbon nanofibers (CNFs), was successfully synthesized to improve the oxidation resistance of copper paste. Fine spherical CuCo alloy particles with nominal composition of Cu/Co = 99/1 w/w were fabricated by atomization. Cobalt nanoprecipitates (CoNPs) used as the catalyst for carbon fiber growth were arranged on the surface of an alloy particle by heat treatment. CNFs were grown from the CoNPs on the alloy particle via thermal chemical vapor deposition (CVD). The conductive paste was prepared by milling using HCuP with resin and oleic acid. HCuP paste was screen-printed on a glass or plastic substrate and showed a resistivity as low as 1.2 × 10−4 Ω·cm after curing at 150 °C for 30 min in air (21% oxygen). These results indicate that the use of HCuP is a promising technology for printable electronics in a sustainable society.

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Section: Introductionmentioning

confidence: 98%