Gigas Growth of Carbon Nanotubes

Defence Science Journal

Mukul Kumar¹  Yoshinori Ando¹ 

[1] Meijo University, Shiogamaguchi, 1-501, Tempaku-ku

关键词: Carbon nanotubes;    camphor;    chemical vapour deposition;    green nanotechnology;    gigasgrowth;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

An exceptionally high yield of carbon nanotubes (CNTs) has been achieved by chemical vapour deposition (CVD) of camphor over zeolite support. A simple 30 min CVD of 12 g camphor over Fe-Co-impregnated zeolite at 650 °C in an academic laboratory setup, yields 6 g multiwalled CNTs of dia ~10 nm with an as-grown purity of ~88 per cent. Owing to the enormous CNT growth,the zeolite bed inflates by 1000 wt per cent and 10,000 vol per cent. Camphor-to-CNT production efficiency is 50 per cent and net carbon-to-CNT conversion efficiency is 61per cent. These figures are incomparably higher than that of any CNT precursor by any method. Hence it is called‚gigas growth™. The technique greatly complies with the principles of green chemistry, and thus sets an example of an environment-friendly nanotechnology. Defence Science Journal, 2008, 58(4), pp.496-503 , DOI:http://dx.doi.org/10.14429/dsj.58.1670

【 授权许可】

Unknown