Abstract The purpose of studying the properties of zinc-manganese nanoferrite was to compare organic fuels that were produced in conditions created by the auto gel combustion method, using citric acid, glycine, and urea with different pH values: (citric acid = 6, glycine = 3 and urea = 0). The samples were prepared in stoichiometric ratios to gain Mn0.5Zn0.5Fe2O4, and all the samples were calcined in the same condition (500 °C and 30 minutes). It should be noted that the entire process of synthesis was photographed to analyze the effect of fuels during the combustion process. Combustion reactions were studied by simultaneous thermal analysis (STA), FT-IR spectroscopy, and X-ray diffraction (XRD), also the Rietveld method was used to determine the type and amount of crystalline phases. Magnetic properties of the samples were measured by vibration sample magnetometer (VSM), and their morphology and powder agglomeration was observed by field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Superior magnetic properties of the sample synthesized with glycine were achieved. Urea gave the smallest particle size, while citric acid produced intermediate properties.

中文翻译：

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三种不同燃料凝胶燃烧法合成纳米锰锌铁氧体及其结构和性能研究

摘要 研究锌锰纳米铁氧体性质的目的是比较在通过自动凝胶燃烧法产生的条件下生产的有机燃料，使用柠檬酸、甘氨酸和具有不同 pH 值的尿素：（柠檬酸 = 6，甘氨酸= 3 和尿素 = 0)。以化学计量比制备样品以获得Mn0.5Zn0.5Fe2O4，并且所有样品在相同条件下（500℃和30分钟）煅烧。需要说明的是，整个合成过程都拍了照片，以分析燃料在燃烧过程中的影响。通过同时热分析 (STA)、FT-IR 光谱和 X 射线衍射 (XRD) 研究燃烧反应，还使用 ​​Rietveld 方法确定结晶相的类型和数量。通过振动样品磁强计（VSM）测量样品的磁性能，并通过场发射扫描电子显微镜（FE-SEM）和透射电子显微镜（TEM）观察其形貌和粉末团聚。用甘氨酸合成的样品获得了优异的磁性。尿素的粒径最小，而柠檬酸的性能中等。