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首页> 外文期刊>RSC Advances >Hybrid synthesis of zirconium oxycarbide nanopowders with defined and controlled composition
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Hybrid synthesis of zirconium oxycarbide nanopowders with defined and controlled composition

机译：定义和控制组成的碳氧化锆纳米粉的杂化合成

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A combined synthesis strategy involving a carbothermal reduction and gelation approach with glycine as gelating agent was used to obtain Zr-based (oxy)carbide materials with defined and controlled composition. A comparatively low temperature approach (1500 °C) allows exploration of the ZrC–ZrO _(2) phase diagram and reproducibly leads to zirconium (oxy)carbide phases with different C/Zr ratios, as confirmed by combined X-ray diffraction (XRD) and transmission electron microscopy (TEM) data. The latter also indicates a chemically very homogeneous distribution of oxygen and carbon throughout the sample bulk, a prerequisite for further characterization of its intrinsic physico-chemical properties. Due to the general variability of the synthesis procedure – variation of metal precursor, amount of gelating agent and carbon precursor source – it is expected that the method can be easily adapted and transferred to other metal – oxycarbide materials.
机译：使用甘氨酸作为胶凝剂的包括碳热还原和胶凝方法的组合合成策略用于获得具有确定和可控组成的Zr基（氧）碳化物材料。相对较低的温度方法（1500°C）允许探索ZrC–ZrO _（2）相图，并可重现地导致具有不同C / Zr比的（氧）碳化锆相，这已通过组合X射线衍射（XRD）得以证实）和透射电子显微镜（TEM）数据。后者还表明整个样品中氧气和碳的化学分布非常均匀，这是进一步表征其固有理化特性的前提。由于合成方法的一般可变性-金属前体的变化，胶凝剂和碳前体来源的数量-预期该方法可以很容易地适应并转移到其他金属碳氧化物材料上。

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