铁铈氧化物程序升温还原过程的研究 |
INVESTIGATION ON THE REDUCTION PROCESS OF Fe-Ce OXIDES BY TRP-in situ MOSSBAUER SPECTROSCOPY |
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摘要: 运用原位穆斯堡尔谱、XRD测定等方法剖析了铁铈氧化物的程序升温还原过程。结果表明,金属离子间的相互作用使得氧化铁的还原温度升高,还原反应活化能提高,抗还原能力增强。 |
关键词: 程序升温还原 铁铈氧化物 原位穆斯堡尔谱 |
基金项目: |
Abstract: TPR processes of Fe-Ce oxides were studied by in situ Mossbauer spectroscopy and XRD. Three peaks were observed in the TPR profile of the sample, indicating the three reduction stages of the Fe-Ce oxide. The raise of the avtivation energy and temperature of the reduction reaction of the oxides with H2 were the evidence of strong interactions of metal ions in oxides. |
Keywords: TPR Fe-Ce oxide in situ Mossbauer spectroscopy |
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葛欣,张惠良,王芳.铁铈氧化物程序升温还原过程的研究[J].无机化学学报,1998,14(3):336-339. |
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