Clarification of the oxygen adsorption properties of YBaCo4O7 at high temperature by thermogravimetry
来源期刊：Journal of Rare Earths2010年第1期
论文作者：朱保峰 郝好山 张勇 贾建峰 胡行
文章页码：84 - 87
摘 要：The oxygen adsorption/desorption properties of YBaCo4O7 at high temperature were investigated by thermogravimetry(TG) method,in which two types of oxygen adsorption were combined.The first type adsorbed oxygen at about 700 °C and released the adsorbed oxygen at 880 °C.After the first type oxygen desorption,even the temperature and oxygen flow were kept the same,a second type oxygen adsorption at about 880 °C occurred and the adsorbed oxygen were released at above 980 °C.The combination of these two types of oxygen adsorption/desorption was responsible for the difference in TG curves obtained by different heating programs.
朱保峰1,2，郝好山1,3，张勇1，贾建峰1，胡行1
1. School of Physical Engineering and Material Physics Laboratory,Zhengzhou University2. The 49th Research Institute of China Electronics Technology Group Corporation3. Department of Mathematical and Physical Sciences,Henan Institute of Engineering
摘 要：The oxygen adsorption/desorption properties of YBaCo4O7 at high temperature were investigated by thermogravimetry(TG) method,in which two types of oxygen adsorption were combined.The first type adsorbed oxygen at about 700 °C and released the adsorbed oxygen at 880 °C.After the first type oxygen desorption,even the temperature and oxygen flow were kept the same,a second type oxygen adsorption at about 880 °C occurred and the adsorbed oxygen were released at above 980 °C.The combination of these two types of oxygen adsorption/desorption was responsible for the difference in TG curves obtained by different heating programs.
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