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Synthsis of Ce_(0.8)Nd_(0.2)O_(1.9) Nanocrystalline Powders by low Temperature Combustion Process

机译:通过低温燃烧过程合成C_(0.8)N_(0.2)O_(1.9)纳米晶体粉末

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In this work, synthesis of the nanocrystalline Ce_(0.8)Nd_(0.2)O_(1.9) Solid solution Powders by a nitrate-glycine gel-combustion process was investigated. The effects of glycine/metal ratio and calcination temperature on the powders phase structure, morphology and particle were investigated. TG-DSC curves and XRD peak of different glycine/metal ratio show that smaller particle size can be obtained with a slightly fuel-deficient ratio. XRD results indicate that the as-prepared powders are crystallinzed in a single fluorrite structure. The crystalline size ranges from 9 nm to 24 nm, which increases with the increase of calcination temperature. The SEM results imply some organic agent may be eliminated by high temperature calcination process.
机译:在这项工作中,研究了纳米晶Ce_(0.8)Nd_(0.2)O_(1.9)固溶体通过硝酸甘油凝胶燃烧方法的合成。研究了研究甘氨酸/金属比和煅烧温度对粉末相结构,形态和颗粒的影响。不同甘氨酸/金属比的TG-DSC曲线和XRD峰值表明,可以以略微燃料缺陷的比率获得更小的粒度。 XRD结果表明,制备的粉末在单一氟化物结构中是结晶。结晶尺寸范围为9nm至24nm,随着煅烧温度的增加而增加。 SEM结果意味着通过高温煅烧过程可以消除一些有机剂。

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