云南化工
雲南化工
운남화공
YUNNAN CHEMICAL TECHNOLOGY
2014年
5期
11-14
,共4页
Ce0.7 Zr0.3 O2 /γ-Al2 O3%纳米固溶体%化学沉淀法
Ce0.7 Zr0.3 O2 /γ-Al2 O3%納米固溶體%化學沉澱法
Ce0.7 Zr0.3 O2 /γ-Al2 O3%납미고용체%화학침정법
Ce0.7 Zr0.3 O2 /γ-Al2 3%nanometer solid solution%chemistry precipitation method
以氯氧化锆、硝酸铈、硝酸铝为原料，按 n（Ce）∶n（Zr）＝0.7∶0.3的比例，采用化学共沉淀法与有机物共沸蒸馏法，将 CeO2、ZrO2分散到γ-Al2 O3表面上使其形成 Ce0.7 Zr0.3 O2/γ-Al23固溶体。用 XRD 考察纳米固溶体在不同温度下焙烧后的相结构。结果表明：Ce0.7 Zr0.3 O2/γ-Al2 O3纳米固溶体为立方晶型，且随着焙烧温度的升高，样品的衍射峰依次变强，峰宽变窄。
以氯氧化鋯、硝痠鈰、硝痠鋁為原料，按 n（Ce）∶n（Zr）＝0.7∶0.3的比例，採用化學共沉澱法與有機物共沸蒸餾法，將 CeO2、ZrO2分散到γ-Al2 O3錶麵上使其形成 Ce0.7 Zr0.3 O2/γ-Al23固溶體。用 XRD 攷察納米固溶體在不同溫度下焙燒後的相結構。結果錶明：Ce0.7 Zr0.3 O2/γ-Al2 O3納米固溶體為立方晶型，且隨著焙燒溫度的升高，樣品的衍射峰依次變彊，峰寬變窄。
이록양화고、초산시、초산려위원료，안 n（Ce）∶n（Zr）＝0.7∶0.3적비례，채용화학공침정법여유궤물공비증류법，장 CeO2、ZrO2분산도γ-Al2 O3표면상사기형성 Ce0.7 Zr0.3 O2/γ-Al23고용체。용 XRD 고찰납미고용체재불동온도하배소후적상결구。결과표명：Ce0.7 Zr0.3 O2/γ-Al2 O3납미고용체위립방정형，차수착배소온도적승고，양품적연사봉의차변강，봉관변착。
Taking chlorine zirconia,cerium nitrate,aluminum nitrate as raw materials,using chemical coprecipitation method and azeotropic distillation of organic matter method,with the Ce∶Zr =0.7∶0.3 ratio,the CeO2 ,Zr02 were dispersed on γ-Al2 O3 surface to form a solid solution of Ce0.7 Zr0.3 02 /γ-Al2 O3 .The phase structure of nano -solid solution after calcination at different temperatures was studied by XRD.The results showed that Ce0.7 Zr0.302 /γ-Al2 O3 nanometer -solid solution had a cubic crystal form,with increasing the calci-nation temperature,the diffraction peak of samples become stronger,peak width bcome narrower.
