Coating processes – Direct application of electrical – magnetic – wave – or... – Electrical discharge
Reexamination Certificate
2011-06-07
2011-06-07
Chen, Bret (Department: 1715)
Coating processes
Direct application of electrical, magnetic, wave, or...
Electrical discharge
C427S249100, C427S249300, C427S249400, C427S903000
Reexamination Certificate
active
07955663
ABSTRACT:
Processes for the simultaneous and selective growth of single walled and multiwalled carbon nanotubes in a single set of experiments are disclosed. The processes may include preparing a graphite electrode rod containing catalyst selected from Fe, Co, Ni, and a mixture thereof, acting as an anode. The process may include preparing another graphite electrode rod, each electrode having a distal and a proximal end. The process may include placing the above said two electrodes parallel to each other and their axis being substantially aligned in a chamber. The process may further include creating a DC-arc discharge inside the chamber by applying a DC-current voltage. The process may further include an cooling assembly having a cooling coil that surrounds the two electrodes. The cooling assembly may be used to maintain a temperature gradient that permits the depositing of single walled and multiwalled carbon nanotubes simultaneously in one experiment.
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Dhami Tersem Lal
Ghawana Jagdish
Gupta Anil Kumar
Mathur Rakesh Behari
Nil Chhotey Lal
Chen Bret
Council of Scientific and Industrial Research
Fulbright & Jaworski LLP
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