Catalytic reactions of zeolites mainly occurring at their acid sites are associated with both the host structures an......

　　A density functional theory (DFT) study has been conducted to investigate the distribution of Al atom in the framewo......

Direct converting carbon dioxide into hydrocarbon fuels and value-added chemicals would offer a very attractive approach......

在酸强度Ｈａｍｍｅｔｔ函数值Ｈ０为＋５．０－－８．２范围的环己烷溶液中利用胺滴定法观察Ｈａｍｍｅｔｔ指示剂吸附的颜色变化。选用ＰＫａ值不同的几种指示剂，测出不同酸强度下各种固体催......

在含结晶水较多的含钨杂多酸中，结晶水有两种不同的存在状态。结果九ｎ不同的ＨＰＡ－Ｗ．ｎＨ２Ｏ，有不同的酸性表现。......