TY - JOUR
T1 - Implementation of an electric field (AC and DC) for the growth of carbon filaments via reaction under autogenic pressure at elevated temperatures of mesitylene without catalyst or solvent
AU - Pol, Vilas G.
AU - Pol, Swati V.
AU - Markovsky, Boris
AU - Calderon-Moreno, Jose M.
AU - Gedanken, Aharon
PY - 2006/3/21
Y1 - 2006/3/21
N2 - The electric-field-directed growth of carbon filaments by reactions under autogenic pressure at elevated temperatures (RAPET) of mesitylene without a catalyst, a support, or a solvent is demonstrated. The thermal dissociation of mesitylene at 700°C in a closed Swagelok cell under air atmosphere in a zero-applied electric field exhibits no preferred orientation and forms 2.5 ± 0.05 μm spherical carbon bodies. In contrast, a one-dimensional growth of carbon filaments is produced with the application of constant direct currents [DC] in the range of 1.5-5 A. The application of an AC [1.5-5 A] current yielded, in addition to the straight filaments, peculiar carbon filaments with sharp edges, zigzag-, dipod-, and tripodlike carbon microstructures, and other morphologies. A plausible mechanism is proposed for the growth of carbon filaments under the implementation of AC or DC electric fields.
AB - The electric-field-directed growth of carbon filaments by reactions under autogenic pressure at elevated temperatures (RAPET) of mesitylene without a catalyst, a support, or a solvent is demonstrated. The thermal dissociation of mesitylene at 700°C in a closed Swagelok cell under air atmosphere in a zero-applied electric field exhibits no preferred orientation and forms 2.5 ± 0.05 μm spherical carbon bodies. In contrast, a one-dimensional growth of carbon filaments is produced with the application of constant direct currents [DC] in the range of 1.5-5 A. The application of an AC [1.5-5 A] current yielded, in addition to the straight filaments, peculiar carbon filaments with sharp edges, zigzag-, dipod-, and tripodlike carbon microstructures, and other morphologies. A plausible mechanism is proposed for the growth of carbon filaments under the implementation of AC or DC electric fields.
UR - http://www.scopus.com/inward/record.url?scp=33645534723&partnerID=8YFLogxK
U2 - 10.1021/cm0527165
DO - 10.1021/cm0527165
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AN - SCOPUS:33645534723
SN - 0897-4756
VL - 18
SP - 1512
EP - 1519
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 6
ER -