Valenzuela-Muñiz A M, Verde Y, Miki-Yoshida M, Alonso-Núñez G
CIMAV Miguel de Cervantes 120, Complejo Industrial Chihuahua, C.P. 31109. Chih., México .
J Nanosci Nanotechnol. 2008 Dec;8(12):6456-60.
An organometallic catalytic agent ([(Hexyl)4N]3FeCl3Br3) has been synthesized through the reaction of tetrahexylammonium bromide ((Hexyl)4NBr) and iron chloride (FeCl3) aqueous solutions. Multi-walled carbon nanotubes (MWCNTs) were obtained by spray pyrolysis of toluene (carbon source) using the new organometallic compound as catalyst. The synthesized catalytic agent was characterized by ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), and thermal analysis (TA) techniques. Spectroscopic results indicated that the new iron organometallic compound has suitable characteristics to grow MWCNTs by spray pyrolysis. The MWCNTs were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. The MWCNTs grow in a disordered way without orientation with diameters ranging from 20 to 50 nanometers. XRD patterns exhibit the 2-H graphite characteristics peaks of the MWCNTs.
通过四己基溴化铵（(Hexyl)4NBr）与氯化铁（FeCl3）水溶液反应合成了一种有机金属催化剂（[(Hexyl)4N]3FeCl3Br3）。以新的有机金属化合物为催化剂，通过甲苯（碳源）的喷雾热解制备了多壁碳纳米管（MWCNTs）。采用紫外可见光谱（UV-Vis）、傅里叶变换红外光谱（FTIR）和热分析（TA）技术对合成的催化剂进行了表征。光谱结果表明，新型铁有机金属化合物具有通过喷雾热解生长MWCNTs的合适特性。采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）和X射线衍射（XRD）技术对MWCNTs进行了分析。MWCNTs以无序方式生长，无取向，直径范围为20至50纳米。XRD图谱显示了MWCNTs的2-H石墨特征峰。
