摘要
利用微量吸附量热技术定量地表征了Ｅｕ２Ｏ３、ＣｅＯ２、ＭｇＯ、ＺｎＯ、Ａｌ２Ｏ３和ＮｉＯ等氧化物表面酸碱中心的强度和数量，结果表明，样品的ＮＨ３和ＣＯ２起始吸附热与其Ｓａｎｄｅｒｓｏｎ电负性相关．
Microcalorimetric adsorption was used to determine quantitatively the number and strength of acid/base sites on the oxide samples of Eu 2O 3, CeO 2, MgO, ZnO, Al 2O 3 and NiO. The initial heats of NH 3 and CO 2 adsorption were found to be proportional to Sanderson electronegativities of the samples.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第6期946-949,共4页
Chemical Journal of Chinese Universities
基金
国家教育委员会跨世纪优秀人才基金
国家自然科学基金
关键词
微量吸附量热
固体酸催化剂
固体碱催化剂
Microcalorimetric adsorption, Solid acid and base catalyst, Metal oxide, Titration of surface acidity and basicity
