文献类型：期刊文献

中文题名：NaCl担载Fe催化裂解乙炔制备纳米碳材料

英文题名：Synthesis of nano-carbon materials by decomposing acetylene using iron supported on sodium chloride as catalyst

作者：王存景[1];王艳博[1];陈改荣[1]

第一作者：王存景

机构：[1]新乡学院化学与化工学院

第一机构：新乡学院化学化工学院

年份：2011

卷号：23

期号：8

起止页码：1075-1077

中文期刊名：化学研究与应用

外文期刊名：Chemical Research and Application

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：氯化钠;乙炔;化学气相沉积法;纳米碳材料

外文关键词：Sodium chloride; Acetylene; Chemical vapor deposition; Nano-carbon materials

摘要：以水溶性NaCl担载Fe作催化剂,于400℃和420℃下化学气相沉积法催化裂解乙炔进行了反应。通过X射线衍射仪、扫描电子显微镜和能谱分析仪对催化剂进行了表征,表征结果显示:活性组分Fe被分散成了粒径在10～40 nm之间的纳米颗粒;通过扫描电子显微镜和高分辨透射电镜对产物进行了表征,表征结果显示:当裂解温度为400℃时,主要产物为直径在20～50 nm之间,基本具有清晰同心石墨壳层结构的内包铁NOLFs,同心石墨壳层的层间距约为0.348nm,产物中没有碳纳米管出现;当裂解温度为420℃时,主要产物为直径在10～40 nm之间结构呈绳结状的碳纳米管,其石墨壳层不是十分规整,石墨化程度较低。
Nano-carbon materials were synthesized by the catalytic decomposition of acetylene at 400 ℃ and 420 ℃ in a chemical vapor deposition process using iron supported on sodium chloride as catalyst.The catalyst was examined by X-ray diffraction,scanning electron microscopy and energy dispersive spectroscopy.The results show that the active composition iron was dispersed into nanoparticles with diameters in the range 10-40 nm on the surface of NaCl support successfully.The products were examined by scanning electron microscopy and high resolution transmission electron microscopy.The results show that nano onion-like fullerenes encapsulating Fe cores with diameters in the range 20-50 nm were obtained when the reaction temperature was 400 ℃ and there were no carbon nanotubes in the product.These onion-like fullerenes are composed of concentric graphene layers with an interlayer distance of 0.348 nm between the layers.When the reaction temperature was 420 ℃,carbon nanotubes with a structure of rope were obtained and the graphitization degree of these carbon nanotubes was not high due to the low reaction temperature.