• Title/Summary/Keyword: Carbon nanofibre

Search Result 3, Processing Time 0.015 seconds

Crystallization Behaviour of PP and Carbon Nanofibre Blends

  • Chatterjee, A.;Deopura, B.L.
    • Fibers and Polymers
    • /
    • v.4 no.3
    • /
    • pp.102-106
    • /
    • 2003
  • Crystallization behaviour of blends of different MFI isotactic polypropylenes (PP), and blends of PP with carbon nanofibre have been investigated by DSC and polarizing optical microscope. Both higher MFI PP component and the carbon nanofibre in the blend influence the nucleation activity of the melt during non-isothermal crystallization. In presence of carbon nanofibre, the sherulitic growth rate is highly disturbed. The calculation of nucleation activity indicates that carbon nanofibres act as active substrate for heterogeneous nucleation.

The Characteristic of Prepared Electrode Catalyst and MEA using CNF and CNT (CNT 및 CNF를 이용하여 제조된 전극 촉매 및 막 전극 접합체의 특성)

  • 임재욱;최대규;류호진
    • Journal of the Microelectronics and Packaging Society
    • /
    • v.11 no.1
    • /
    • pp.59-64
    • /
    • 2004
  • The performance of fuel cell electrode depends on the characteristics of the catalyst support material. This paper deals with the use of CNF(carbon nanofibre) and CNT(carbon nanotube) as platinum catalyst support. The CNF and CNT were synthesized with catalyst treated by mechanochemical process and were prepared by chemical vapor deposition (CVD) method. The platinum supported on CNF and CNT for polymer electrolyte membrane fuel cell (PEMFC) application. In result, the best I-V characteristic was verified by the prepared MEA(membrane electrode assembly) from twisted CNF that had a diameter of 65 nm.

  • PDF

Carbon Nanotubes and Nanofibre: An Overview

  • Chatterjee, A.;Deopura, B.L.
    • Fibers and Polymers
    • /
    • v.3 no.4
    • /
    • pp.134-139
    • /
    • 2002
  • Carbon nanotubes are graphene sheets rolled up in cylinders with diameter as small as 1nm. Extensive work carried out in recent years has revealed the intriguing properties of this novel material. Exceptional property combined with low density of nanotubes makes them suitable for use as reinforcements in composites. Low volume of production and high cost is the main limitations towards their growth and application. Nanofibres bridge the gap between the conventional carbon fibre and the carbon nanotubes. With their low cost & comparatively higher volume of production along with their exceptional properties, the nanofibres are considered attractive material as nanoscale reinforcement. In this article a concise review of structure, property. production and application of carbon nanotubes and nanofibres have been discussed.