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首页> 外文期刊>Journal of Advanced Ceramics >Synthesis and catalytic properties of iron-cerium phosphate prepared in ethylene glycol using additives
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Synthesis and catalytic properties of iron-cerium phosphate prepared in ethylene glycol using additives

机译：添加剂制乙二醇中磷酸铁铈的合成及催化性能

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摘要

The effects of cerium substitution, use of additives, and heating temperature on the chemical composition and catalytic activity of iron phosphate were evaluated. Iron-cerium phosphate was prepared from iron nitrate, ammonium cerium nitrate, and sodium phosphate in ethylene glycol using sodium dodecyl-sulfate or acetylacetone as additive. The chemical composition, particle shape and size distribution of the obtained samples were respectively evaluated based on ICP and XRD, SEM, and laser diffraction/scattering analysis. The catalytic activity was evaluated based on the decomposition of the complex formed from formaldehyde, ammonium acetate, and acetylacetone. XRD peaks corresponding to FePO4 were observed for the samples heated at 600 °C whereas samples treated at lower temperatures were amorphous. Iron-cerium phosphates heated at 200 °C and 400 °C exhibited high catalytic activity for the decomposition of the aforementioned complex.
机译：评估了铈的取代，添加剂的使用以及加热温度对磷酸铁的化学组成和催化活性的影响。磷酸铁铈是由硝酸铁，硝酸铈铈铵和磷酸钠在乙二醇中制成的，其中十二烷基硫酸钠或乙酰丙酮为添加剂。基于ICP和XRD，SEM以及激光衍射/散射分析，分别评估获得的样品的化学组成，颗粒形状和尺寸分布。基于由甲醛，乙酸铵和乙酰丙酮形成的络合物的分解来评估催化活性。在600°C加热的样品中观察到了与FePO4相对应的XRD峰，而在较低温度下处理的样品则为无定形。加热到200°C和400°C的磷酸铁铈盐表现出高催化活性，可以分解上述络合物。

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