The negative effects of alcohols on carbon nanotube synthesis in a nebulised spray pyrolysis process

被引：22

作者：

Cele, Leskey M. ^{[3
,4
]}

Coville, Neil J. ^{[1
,2
]}

机构：

[1] Univ Witwatersrand, DST NRF Ctr Excellence Strong Mat, ZA-2050 Johannesburg, Johannesburg, South Africa

[2] Univ Witwatersrand, Sch Chem, ZA-2050 Johannesburg, Johannesburg, South Africa

[3] Univ Johannesburg, DST NRF Ctr Excellence Strong Mat, ZA-2028 Johannesburg, South Africa

[4] Univ Johannesburg, Dept Chem Technol, ZA-2028 Johannesburg, South Africa

来源：

CARBON | 2009年 / 47卷 / 07期

关键词：

CHEMICAL-VAPOR-DEPOSITION; DIAMETER DISTRIBUTION; GROWTH; CVD; EVAPORATION; CATALYSTS;

D O I：

10.1016/j.carbon.2009.03.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Multi-walled carbon nanotubes were synthesized by the nebulised spray pyrolysis (frequency 1.6 MHz) of toluene and toluene-alcohol mixtures with ferrocene as the catalyst precursor. The CNTs produced were characterized by TEM, SEM, Laser-Raman spectroscopy and TGA. The results show that the presence of ethanol, 2-propanol and octanol in the reaction mixture reduces the CNT yield, growth rate and produces CNTs that are less well graphitized and less resistant to oxidation. The data suggests that the exposure of the alcohol-containing mixture to ultrasound irradiation results in the production of radicals that inhibit CNT formation. (C) 2009 Elsevier Ltd. All rights reserved.

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页码：1824 / 1832

页数：9

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