表面活性剂为碳源制备纳米碳化钼  

Preparation and Characterization of Nanoparticles Molybdenum Carbide Using Surfactants as Carbon Source

作　　者：张蓓蓓[1,2] 李华明[2] 朱文帅[2] 夏杰祥[2] 

机构地区：[1]盐城工学院化生学院,江苏盐城224003 [2]江苏大学化学化工学院,江苏镇江212013

出　　处：《当代化工》2010年第1期11-13,16,共4页Contemporary Chemical Industry

摘　　要：以表面活性剂为碳源,通过程序升温反应法成功制备了α-Mo2C,并用粉末X-射线衍射(XRD)、扫描电子显微镜(SEM)、热失重分析(TG)和透射电子显微镜(TEM)等现代分析技术,对所制备的α-Mo2C进行了表征。结果表明:不同的表面活性剂高温分解所得碳原子或碳基作碳源,所生成的α-Mo2C的颗粒粒径明显不同。制得的α-Mo2C是六方晶,α-Mo2C的颗粒粒径达到纳米级,并且用聚乙烯吡咯烷酮作碳源生成的Mo2C颗粒粒径小于用双十八烷二甲基氯化氨作碳源生成的Mo2C颗粒粒径。Nanoparticles molybdenum carbide was synthesized from peroxo-polymolybdic acid and surfactants （PVP or DDAC）by temperature-programmed method at 1 053 K. X-ray powder diffractometer（XRD）, scanning electron microscopy （SEM）, transmission electron microscope （TEM） were used to characterize the samples. The results show that the different carbon sources used for synthesis of ct -Mo2C has a great effect on the particle size and the surface area of the samples. The grained size of Mo2C using PVP as carbon source is smaller than that of Mo2C using DDAC as carbon source.

关 键 词：碳化钼 纳米 双十八烷二甲基氯化氨 聚乙烯吡咯烷酮 

分 类 号：TQ127.1[化学工程—无机化工]