镁和镧可减小活性衰减速率。
标准溶液也同样品一样加入相同量硝酸镧溶液。
The standard solution is added lanthanum nitrate solution as much as the sample.
对钴酸锶镧的结构、导电性及催化活性等进行了研究。
The structure, conductivity and catalytic activity of LaSr-Co-O have been studied.
对钴酸锶镧的结构、导电性及催化活性等进行了研究。
The structure, conductivity and catalytic activity of LaSr-Co-O have been studied.
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