Growth of Carbon Nanotubes on Iron Oxide Nanoparticles Catalyst Derived From Iron Storage Protein-Ferritin by CVD Method

Abstract

Here we used the iron oxide nanoparticles derived from ferritin as catalyst for the synthesis of carbon nanotubes (CNTs) by the chemical vapor deposition (CVD) of coal gas. It has been found that the structure and morphology of CNTs can be tailored, to some degree, by varying the experimental conditions such as catalyst loading and process parameters. In addition to straight CNTs, some Y-branched CNTs were also obtained, which might be due to the sulfur species in the coal gas.

Ferritin: A Versatile Building Block for Bionanotechnology

“…325 Clearly, a geometrical pattern of the catalyst particles with defined surface density would be advantageous to have a site and number controlled growth of the nanotubes; otherwise, a nanotube "mess" is obtained, unsuitable for microdevice fabrication. 326 For example, patterning of a ferritin layer on a TiN substrate via optical or electron beam lithography of a top-layer negative resist was done and tested for biocompatibility with PC-12 nerve cells. 327 Ferritin solutions for inkjet printing on aluminum oxide surfaces needed a nonionic sugar-based surfactant as additive, which incorporated ferritin particles in a micellar morphology.…”

“…Durrer and co-workers investigated the adsorption density of ferritin and growth of carbon nanotubes on SiO 2 for integration in FETs . Clearly, a geometrical pattern of the catalyst particles with defined surface density would be advantageous to have a site and number controlled growth of the nanotubes; otherwise, a nanotube “mess” is obtained, unsuitable for microdevice fabrication . For example, patterning of a ferritin layer on a TiN substrate via optical or electron beam lithography of a top-layer negative resist was done and tested for biocompatibility with PC-12 nerve cells .…”

Preparation of Poly(Phenylene Sulfide)/Carbon Nanotubes Composites

“…is 30000, T m is 275 o C) was supplied by Sichuan Deyang Chemical Ltd.Carbon nanotubes was synthesized by the chemical vaper deposition method [13]. PPS was dried at 140 o C to remove water and some impurities before mixing.…”