Abstract
Carbon nanocoils (CNCs) were synthesized by a chemical vapor deposition method using tin-iron-oxide (Sn-Fe-O) xerogel film catalyst. The Sn-Fe-O catalyst was prepared by a low-cost sol–gel method using stannous acetate and ferric acetate as precursors. The growth kinetics of CNCs were monitored by a thermogravimetric analyzer, and the experimental result was correlated using one-dimensional tip growth kinetic model. The kinetic model consists of three steps: (1) dissociative chemisorption of acetylene and formation of encapsulating carbon on a leading face of the catalyst, (2) diffusion and reduction of Sn-Fe-O catalyst in bulk structure, and (3) carbon cluster nucleation on a tailing face of the catalyst.
Original language | English |
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Article number | 035027 |
Number of pages | 16 |
Journal | Materials Research Express |
Volume | 1 |
Issue number | 3 |
Early online date | 7 Aug 2014 |
DOIs | |
Publication status | Published - Sept 2014 |
Externally published | Yes |
Keywords
- carbon nanocoil
- CNC
- growth modeling
- xerogel
- catalyst