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用XRD、比表面测定、LRS定性和定量的方法对用Zr（OH）4和已晶化的ZrO2作载体制得的两类WO3／ZrO2催化剂进行了表征．揭示了样品比表面、载体物相、活性组分的存在状态与制备方法、WO3含量、焙烧温度之间的关系．结果表明，WO3能单层分散在ZrO2上；单层覆盖在Zr（OH）4上的WO3使载体在焙烧时晶粒生长受阻，形成介稳的四方ZrO2，并阻止载体微粒间的烧结，使从Zr（OH）4出发制得的WO3／ZrO2比表面明显增大，在WO3含量达到单层分散容量时以上作用表现得最充分；WO3与Zr（OH）4（或四方ZrO2）在高温（～800℃）可能发生了某种化学结合，开创出超强酸位．用以上观点可对文献中已报导的主要实验事实作出较满意的解释.
Two kinds of WO3 / ZrO2 catalysts prepared by using Zr (OH) 4 and crystallized ZrO2 as supports were characterized by XRD, specific surface area and qualitative and quantitative LRS methods. The relationship between the specific surface area of the sample, the phase of the carrier phase and the active components, the preparation method, WO3 content and the calcination temperature were revealed. The results show that WO3 can be monolayer dispersed on ZrO2. WO3 monolayer coated on Zr (OH) 4 hinders the growth of the grain during roasting to form metastable tetragonal ZrO2 and prevents the sintering between the support particles. The specific surface area of WO3 / ZrO2 prepared from Zr (OH) 4 obviously increases, and the above effect appears most fully when the WO3 content reaches the monolayer dispersion capacity. In the case of WO3 and Zr (OH) 4 (or tetragonal ZrO2) ~ 800 ° C) A chemical bond may have occurred that created a super acid site. From this point of view, the main experimental facts reported in the literature can be satisfactorily explained.