Growth of carbon nanotubes from waste blast furnace gases at atmospheric pressure
| Autor: | Mallika Bohm, Tapan Kumar Rout, K. G. Upul Wijayantha, Jagdeep S. Sagu, Paul R. Holland, Siva Bohm, H.C. Hemaka Bandulasena |
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| Rok vydání: | 2016 |
| Předmět: |
Blast furnace
Materials science Atmospheric pressure Metallurgy 02 engineering and technology General Chemistry Carbon nanotube Chemical vapor deposition 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Industrial waste 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Greenhouse gas Carbon dioxide General Materials Science 0210 nano-technology Carbon monoxide |
| Zdroj: | Crystal Research and Technology. 51:466-474 |
| ISSN: | 0232-1300 |
| DOI: | 10.1002/crat.201600068 |
| Popis: | Carbon emissions from industrial sources are of major global concern, especially contributions from the steel manufacturing process which accounts for the majority of emissions. Typical blast furnace gases consist of CO2 (20-25%), CO (20-25%), H2 (3-5%) and N2 (40-50%) and trace amounts of other gases. It is demonstrated that gas mixtures with these compositions can be used at atmospheric pressure to grow carbon nanotubes (CNTs) by chemical vapor deposition (CVD) on to steel substrates, which act as catalysts for CNT growth. Computational modelling was used to investigate the CNT growth conditions inside the CVD chamber. The results show that industrial waste pollutant gases can be used to manufacture materials with significant commercial value, in this case CNTs. |
| Databáze: | OpenAIRE |
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