采用凝胶注模技术原位合成造孔剂制备出开孔气孔率为20%～30%的La0 8Sr0.2MnO3多孔阴极材料.结果表明,合适的烧结温度为1 100℃～l150℃;开口气孔位于三角晶界,中位孔径约为400 nm;多孔材料的电导率随着温度的升高而升高,由ln(σT)～l/T曲线,可得电导活化能Ea为10.99 kJ/mol.
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