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本文探讨了在制备一种新型无机非整比固体复合物脱铅剂过程中,烧结时氧分压对其内部缺陷结构及其最终的吸附性能的影响.在高氧分压区,脱铅剂中点缺陷V′ca占主导地位且正比于Po21/4,这一点通过测量脱铅剂电导率给予了有力证明.从而说明无机非整比化合物脱铅剂中点缺陷是形成表面吸附活性位的基础;是决定其吸附性能的关键因素.借助缺陷化学知识对其脱铅机理进行了新的探索
In this paper, the effect of partial pressure of oxygen on the internal defect structure and its final adsorption performance during the preparation of a novel inorganic non-integral solid composite lead-removing agent was explored. In the oxygen partial pressure zone, the point defect V’ca in the lead-removing agent dominates and is proportional to Po21 / 4, which is strongly demonstrated by measuring the conductivity of the lead-removing agent. Thus, it is indicated that the point defect in inorganic lead-free agent is the basis for the formation of active sites on the surface. It is the key factor that determines the adsorption performance. With the help of defect chemical knowledge, a new exploration is made on its lead-removing mechanism