Abstract: Apparatus (210) for producing a multi-wall carbon nanotube (213) may comprise a process chamber (216), a furnace (217) operatively associated with the process chamber (216), and at least one filament (218) positioned within the process chamber (216). At least one power supply (220) operatively associated with the at least one filament (218) heats the at least one filament (218) to a process temperature. A gaseous carbon precursor material (214) operatively associated with the process chamber (216) provides carbon for forming the multi-wall carbon nanotube (213). A metal catalyst material (224) operatively associated with the process (216) catalyzes the formation of the multi-wall carbon nanotube (213).

Abstract: The invention relates to a chemical vapor deposition (“CVD”) process for the growth of single-wall carbon nanotube (“SWNT”). According to the invention, methane gas is decomposed in the presence of a supported iron-containing catalyst to grow SWNT material within a growth temperature range from about 670° C. to about 800° C. The process provides higher yields of SWNT material and reduces the formation of amorphous carbon. Thus, the SWNT material produced according to the invention will minimize problems associated with purification steps, such as breakage or damage to the SWNT material. The invention provides for the manufacture of SWNT material at lower temperatures, which not only results in lower equipment and processing costs, but also provides compatibility with substrates that cannot be used at higher temperatures. The invention may be used to provide an inexpensive process for the mass production of SWNT material.

Abstract: Laboratory apparatus for performing repetitive tacks includes a table and first and second bearing ways below the table. First and second carriages are mounted on corresponding bearing ways for independent motion therealong, the second carrriage moving in a plane below and parallel to the first carriage. An independently operable transfer device moves objects between the table and a selected carriage or between the carriages, as desired, and apparatus is provided adjacent to the table for performing operations on objects located on the table or on the carriages, the transfer device, and the operating apparatus being capable of repetitive operation.