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An extended argon arc plasma reactor has been utilised for efficiently producing multi-walled carbon nano tubes (MWCNT) with an inexpensive raw material such as the calcined petroleum coke. In this investigation, CPC powder was dry mixed with 2.5 wt %, Ni catalyst in a ball mill and the resulting homogeneous raw material mixture was heat treated in a graphite crucible in a vacuum argon arc plasma...
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