微纳米LaMgB_5O_(10)的制备及表征  

Preparation and Characterization of Micro-nanometer LaMgB_5O_(10)

作　　者：华陈[1] 霍慧琴 闫玉芳[1] 李晓芳[1] 田苗苗[1] 储刚[1] 姜恒[1] 

机构地区：[1]辽宁石油化工大学化学与材料科学学院,抚顺113001

出　　处：《人工晶体学报》2015年第1期133-137,共5页Journal of Synthetic Crystals

基　　金：辽宁省自然科学基金(201202122);辽宁省教育厅资助项目(L2012125)

摘　　要：采用Mg(NO3)2·6H2O,H3BO3,La(NO3)3·nH2O和不同燃烧剂(甘氨酸,尿素,一水合柠檬酸,柠檬酸铵)反应来合成微纳米LaMgB5O10粉体。讨论了不同还原剂(燃烧剂),时间,温度对产物的影响。采用XRD,SEM,TGDTA检测手段对产物和产物前驱体进行表征,确定合成微纳米LaMgB5O10粉体的最优条件为甘氨酸做燃烧剂,在900℃煅烧5 h。合成的产物结晶程度高,分布均匀,分散性好。Micro-nanometer LaMgB5O10 powder was prepared using Mg（NO3）2·6H2O,H3BO3,La（NO3）3·6H2O and different combustion agents（glycine,carbamide,citric acid,ammonium citrate） in this article. The effects of different reducing agents（combustions agent）,time and temperature on the products were discussed. Products and product precursors were characterized by XRD,SEM,TG-DTA.The results show that the optimal condition of preparation of micro-nanometer LaMgB5O10 powder is that using glycine as combustion agent at 900 ℃ calcination for 5 h. The synthesized products have a high degree of crystallinity,homogeneous distribution and good dispersibility.

关 键 词：燃烧剂 微纳米LaMgB5O10 表征 

分 类 号：O614[理学—无机化学]