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首页> 外文期刊>Journal of industrial and engineering chemistry >Dependence of zinc aluminate microscopic structure on its synthesis
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Dependence of zinc aluminate microscopic structure on its synthesis

机译：铝酸锌微观结构对其合成的依赖

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Alumina doped with zinc oxide was synthesized by sol-gel method in alcohol solution. Hybrid oxides of aluminum and zinc were prepared from various aluminum precursors (aluminum sec-butoxide, aluminum nitrate, and aluminum isopropoxide) and zinc acetate solution with ethylacetoacetate and nitric acid as a chelating agent and catalyst, respectively. Types and molar ratio of the precursor to the chelating agent and acidic catalyst were found to remarkably affect the formation of transparent sol of aluminium-zinc sol composite. With relatively low temperature of 50 °C, the suitable molar ratio of aluminum sec-butoxide to ethylacetoacetate to nitric acid for preparing the homogeneous sol was 1:0.40:0.86. Furthermore, the calcination at elevated temperature higher than 400 °C would be essential for preparing ZnAl2O4 with the face centered cubic microstructure. The primary crystalline size of the synthesized zinc aluminate nanostructure was approximately 20 nm with lattice spacing of 0.55 nm.
机译：通过溶胶-凝胶法在醇溶液中合成了氧化锌掺杂的氧化铝。由各种铝前体（仲丁醇铝，硝酸铝和异丙醇铝）和乙酸锌溶液分别以乙酰乙酸乙酯和硝酸作为螯合剂和催化剂制备铝和锌的杂化氧化物。发现前体与螯合剂和酸性催化剂的类型和摩尔比显着影响铝-锌溶胶复合物的透明溶胶的形成。在50℃的较低温度下，仲丁醇铝与乙酰乙酸乙酯与硝酸的合适摩尔比为1：0.40：0.86。此外，在高于400°C的高温下煅烧对于制备具有面心立方微结构的ZnAl2O4是必不可少的。合成的铝酸锌纳米结构的初级晶体尺寸约为20 nm，晶格间距为0.55 nm。

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