Flame synthesis of carbon nanotubes and few-layer graphene on metal-oxide spinel powders

Nasir K. Memon; Fusheng Xu; Geliang Sun; Sage J.B. Dunham; Bernard H. Kear; Stephen D. Tse

doi:10.1016/j.carbon.2013.07.023

Flame synthesis of carbon nanotubes and few-layer graphene on metal-oxide spinel powders

Nasir K. Memon, Fusheng Xu, Geliang Sun, Sage J.B. Dunham, Bernard H. Kear, Stephen D. Tse

Research output: Contribution to journal › Article

28 Citations (Scopus)

Abstract

Multi-walled and single-walled carbon nanotubes (CNTs) and few-layer graphene (FLG) are grown directly on spinel powders using flame synthesis. CNT and FLG growth occurs via the decomposition of flame-generated carbon precursors (e.g., CO, C₂H₂, and CH₄) over nanoparticles (i.e., Ni, Co, Fe, and Cu) reduced from the solid oxide. The growth of CNTs is investigated on NiAl₂O₄, CoAl₂O_4, and ZnFe₂O₄, using counterflow diffusion flame and multiple inverse-diffusion flames (m-IDFs), while the growth of FLG is investigated on CuFe₂O₄ using m-IDFs. As shown by analytical electron microscopy techniques, Raman spectroscopy, and X-ray diffraction, substrate temperature and spinel composition play critical roles in the growth of both CNTs and FLG.

Original language	English
Pages (from-to)	478-486
Number of pages	9
Journal	Carbon
Volume	63
DOIs	https://doi.org/10.1016/j.carbon.2013.07.023
Publication status	Published - 1 Nov 2013

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ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

Cite this

Memon, N. K., Xu, F., Sun, G., Dunham, S. J. B., Kear, B. H., & Tse, S. D. (2013). Flame synthesis of carbon nanotubes and few-layer graphene on metal-oxide spinel powders. Carbon, 63, 478-486. https://doi.org/10.1016/j.carbon.2013.07.023

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abstract = "Multi-walled and single-walled carbon nanotubes (CNTs) and few-layer graphene (FLG) are grown directly on spinel powders using flame synthesis. CNT and FLG growth occurs via the decomposition of flame-generated carbon precursors (e.g., CO, C2H2, and CH4) over nanoparticles (i.e., Ni, Co, Fe, and Cu) reduced from the solid oxide. The growth of CNTs is investigated on NiAl2O4, CoAl2O4, and ZnFe2O4, using counterflow diffusion flame and multiple inverse-diffusion flames (m-IDFs), while the growth of FLG is investigated on CuFe2O4 using m-IDFs. As shown by analytical electron microscopy techniques, Raman spectroscopy, and X-ray diffraction, substrate temperature and spinel composition play critical roles in the growth of both CNTs and FLG.",

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10.1016/j.carbon.2013.07.023