描述我們用了TPR技術(shù)
The reduction behaviors and the interactions between the active phase and the support of each sample were examined by using temperature-programmed reduction of H2 (H2-TPR) technique.
寫樣品怎么放置
Each sample was placed in a quartz tubular reactor fitted with a thermocouple for continuous temperature measurement.
寫測試之前我們對管道進行凈化
Prior to the H2-TPR measurement, to drive away water or impurities, 5% Co/Al2O3 catalyst (0.6 g) were flushed with high purity argon at 200 °C for 1 h, respectively.
描述我們開始測試了。
10% H2/Ar was switched on and the flow rate through the reactor was controlled at 30 mL/min.
The temperature was raised at a rate of 6 °C/min from 25 to 750 °C or at a rate of 10 °C/min from 25 to 950 °C and was held at the final temperature for 10 min.
描述我們?nèi)绾斡涗浶盘?br> The H2 consumption (TCD signal) was recorded automatically by a PC.
