摘要
以Na2HPO4.12H2O和SnCl4.5H2O为原料,在适量表面活性剂聚乙二醇(PEG)-400的存在下,先在室温下研磨反应混合物进行固相反应,然后将反应混合物在80℃下保温2h,接着用水洗去混合物中的可溶性无机盐后在80℃下烘干,即得磷酸锡钠纳米晶前驱体。将前驱体在600℃下保温使其转变成高纯NaSn2(PO4)3纳米晶。采用TG/DTA,IR,XRD和SEM对产品进行表征。结果表明,前驱体在600℃下保温1h得到结晶良好、空间群为R-3(148)、平均粒径约为49.6 nm的球形NaSn2(PO4)3。
Precursor of nanometer crystalline NaSna (PO4)3 is prepared in the presence of surfactant PEG-400 with fully ground Na2HPO4· 12H2O and SnCl4 5H2O as raw materials by solid-state reaction at room temperature, the product mixture is heated at 80℃ for 2h, and washed with water to remove soluble inorganic salts and dried. Nanometer crystalline NaSn2 (PO4)3 with high purity is obtained by thermal crystallization of precursor at 600℃ for lh. Precursor and product are characterized by TG/DTA, IR, XRD and SEM. The results Show that the well crystalline spherical NaSn2 (PO4)3 with average particle size 49.6nm and consonant with space group R -3(148) is derived at 600℃ from heating precursor.
出处
《有色金属》
CAS
CSCD
北大核心
2009年第2期33-36,共4页
Nonferrous Metals
基金
广西自然科学基金(No.0640009)
广西大型仪器协作共用网资助基金(360-2006-049)
关键词
无机非金属材料
磷酸锡钠
低热固相合成
表征
纳米晶
inorganic nonmetal material
NaSn2(PO4)3
solid-state preparation at low heat
characterization
nanometer crystalline