二种不同氧化物所形成的化学混合物,往往会产生具有酸性的表面。然而并不总是如此,为此曾有经验规则来进行判断。Thomas从实验结果中总结出根据二种氧化物价态和配位数的差异来进行判断的规则。1974年田部发展了一种新的判断方法,它不仅能更好地解释实验事实,而且能预言产生的表面酸位属什么类型。本文着重介绍田部判断规则的原理及其应用。 Chemical mixtures of two different oxides tend to produce acidic surfaces. However, this is not always the case, for which reason rules of thumb were used to make judgments. Thomas concluded from the experimental results based on the difference between the two kinds of oxide valence and coordination number to determine the rules. In 1974, the Department of Labor developed a new method of judgment that not only better explained the experimental facts but also predicted the type of surface acidity produced. This article focuses on the principles and applications of Tadashi judgment rules.