期刊
RSC ADVANCES
卷 9, 期 6, 页码 3151-3156出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra09584a
关键词
-
资金
- Austrian Science Foundation (FWF) [F 45 N16, I 2877-N34]
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 degrees C) allows exploration of the ZrC-ZrO2 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.
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