摘要
ZrO_2是一种性质特殊的载体,热分析结果揭示它在H_2氛下发生了部分还原现象,即有ZrO_2生成,于是ZrO_2具有路易斯酸性与氧化性。正电子湮没与穆斯堡尔效应实验,说明ZrO_2具有易提供电子的能力,即具有路易斯碱性与还原性。ZrO_2的这种多功能特性,使得它不只是一种单纯的载体而对CO_2氢化反应具有催化活性。
ZrO2 was a kind of support with special properties. TG-DTG results showed that ZrO2 was partially reduced in H2 atmosphere, i. e., ZrOx was formed. Thereupon, ZrO2 was of acidic property and oxiding property. The experiments of positron annihilation and Mossbauer effect showed that ZrO2 was of the ability offering electrons, i. e. ,of Louis basic property and reducing property.The multi-functional properties of ZrO2 will make the supported catalysts with ZrO2 support have particular catalysis behavior for CO2 hydrogenation.
出处
《高校化学工程学报》
EI
CAS
CSCD
1990年第3期284-289,共6页
Journal of Chemical Engineering of Chinese Universities
基金
国家自然科学基金
