Which among the following is not an advantage of the Arc discharge method for CNT production?

Which among the following is not an advantage of the Arc discharge method for CNT production? Correct Answer Random size of the tubes formed

Arc discharge method for synthesis of CNT has multiple advantages. These include i) High quality of CNT production, ii) Simple procedure, iii) Inexpensive method of synthesis, iv) Abundance of CNT with fewer structural defects.
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