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用哌嗪和丙胺作模板剂在水热条件下合成了微孔材料 NH_4[Ni(H_2O)_2Al_2(PO_4)_3];单晶解析表明该结构与以往的金属磷酸铝大有不同,结构中的镍原子是八配位的,且与铝的位置区别明显;单晶结构数据,元素分析,拉曼光谱表明 NH_4[Ni(H_2O)_2Al_2(PO_4)_3]材料的八元环孔道中只含有 NH_4~+离子;热重分析和焙烧后的XRD 图谱显示,该材料在350℃和空气条件下焙烧2 h,仍然保持其原来的骨架结构;若焙烧温度为550℃,则结构被破坏.
The microporous material NH_4 [Ni (H_2O) _2Al_2 (PO_4) _3] was synthesized by using piperazine and propylamine as templating agent under hydrothermal conditions. The single crystal analysis showed that the structure was different from the previous metal aluminum phosphate. Ni atoms are octahedral and have obvious difference from that of aluminum. Single crystal structure data, elemental analysis and Raman spectra show that the NH_4 [Ni (H_2O) _2Al_2 (PO_4) _3] ~ + Ions. Thermogravimetric analysis (XRD) and XRD patterns after roasting show that the material retains its original framework structure when roasted at 350 ℃ and air for 2 h. If the roasting temperature is 550 ℃, the structure is destroyed.