水热-均匀沉淀法制备Zr(OH)_x/NH_4Cl复合结构枝蔓晶  

Hydrothermal-homogenous Precipitation Method Synthesis ofZr(OH)_x/NH_4Cl Compound Dendrite Like Crystals

作　　者：孙笑非[1] 宋秀芹[1] 

机构地区：[1]河北师范大学化学与材料科学学院,石家庄050016

出　　处：《人工晶体学报》2006年第4期804-808,870,共6页Journal of Synthetic Crystals

基　　金：河北省自然科学基金资助项目(No.503167)

摘　　要：本文以ZrOC l2.8H2O和CO(NH2)2为原料,采用水热-均匀沉淀法,制备出了一种新型Zr(OH)x/NH4C l复合结构对枝蔓晶,并用XRD、SEM、TEM、EDS对产品进行表征。对枝蔓晶的结构和形成进行了分析认为NH4C l通过氢键作用对Zr(OH)x形成不完全包覆,并通过晶体生长方式形成枝蔓晶。A novel Zr（OH）/NH4Cl compound dendrite-like crystals were synthesized by hydrothermalhomogenous precipitation method, using ZrOCl2 · 8H2O and CO （NH2 ）2. The prepared products were characterized by means of X-ray diffraction, transmission electron microscopy, scanning electron microscopy and energy dispersive spectrum. We conclude from the results that NH4Cl had important influence on the formation of compound dendrite-like crystals. Zirconia precursor is enwraped by NHaCl, and NH4Cl growth by the crystal growth method.

关 键 词：氧化锆 枝蔓晶 水热法 均匀沉淀法 

分 类 号：O782[理学—晶体学]