Synthesizing of helical-single walled carbon nanotubes by chemical vapour decomposition for engine

Abstract

The captivating interest on carbon nanotubes (CNTs) has kindled the research activity after its discovery in 1991. It is due to its fabulous properties which have opened numerous applications like high weight to strength ratio, field emission transistors, and catalysis. Irrespective of the stunning technological development there is still much struggle in the synthesis aspect, which is a great drawback in compliance of these unique materials in the commercial application. Apart from various known method catalytic chemical vapor deposition (CCVD) is more advantages, where SWCNTs can be produced with varying diameters, large scale production, with high purity, variable temperature and most importantly it can be produced economically. In CCVD technique, We have used magnesium metal as a substrate with transition metal like Fe, and Ni, to prepare combustion catalyst. SWCNTs synthesized from FeaNibMg1-(a + b)O (FNM) catalyst had a higher yield than other catalysts with helical structure in the single layer of graphitic carbon (h-SWCNTs). The morphology of the synthesized h-SWCNTs was identified by Field Emission Scanning Electron Microscope and many others. Environmental damage from industries is looking for a prominent candidate to sort out the issues such as high catalytic activity, reusability, and stability norms. With the obtained result a comparative study was done against combustion catalyst, purified and pristine SWCNTs. It is found that the pristine h-SWCNTs had a good photo catalytic activity with this result we have confirmed SWCNTs synthesized from solution combustion technique can be utilized for commercial application.