FEMD吸附水蒸汽的研究

The Adsorption of Water Vapor on FEMD Samples

采用静态吸附重量法研究了几种电解二氧化锰样品对水蒸汽的吸附,实验结果表明,样品经393.2K和523.2K处理2小时后,吸附水蒸汽的等温线外形类似于Ⅲ类吸附等温线。经523.2K处理2小时的样品,吸湿性低于经393.2K处理的样品。FEMD样品在常温下吸附后,并在低于50℃的温度下脱附2小时,反复进行10次,最后一次的吸附量相当于第一次吸附量的65％。

Static weight adsorption method was used to study the adsorption of water vapor on some electrolytic manganese dioxides. Experimental results indicated that after treatment of samples at 393. 2K and 523. 2K for two hours respectively, the curves of water vapor adsorption exhibited the type Ⅲ of adsorption isotherms. The amount of water vapor adsorbed by the 523. 2K treated samples was less than that of 393. 2K treated samples. We found that in the tenth cycle, adsorption at an ambient temperature and desorption at a temperature not more than 325. 2K , the fibrous electrolytic manganese dioxide (FEMD) retained a water vapor adsorbent capacity which was 65% of that of the first cycle.