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제안 방법
- Actually, the perovskite oxides have received increasing interest in the mixed-conducting ceramic membrane reactor technology for partial oxidation of methane.9 In this work, we prepared LaFeO3, LaCoO3, and LaNiO3 perovskite oxides by using a sol-gel method and examined them as catalysts for the oxidative coupling of methane in the temperature range of 650 to 800 ℃ at atmospheric pressure.
대상 데이터
- 2 To get an information about the chemical species adsorbed on the catalyst surface, FT-IR (Fourier-transform infrared) spectroscopy analysis was performed by using an infrared cell as described in the literature.10 The IR cell was made of quartz tubing with 10 cm length and 3.0 cm diameter, heating coil was wound around the middle of the cell to control the reaction temperature, two turns of copper cooling coils were placed around each end of the cell, and Zn-Se windows were attached to both ends of the cell. For the in situ IR spectroscopy analysis, the self-supported disk of LaFeO3 was made by compressing the powder (50 mg) at 3 t/cm2 and the La2O3 disk was made by compressing the mixture of La2O3(10%) and KBr.
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