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A sample La 0.68 Pb 0.32 FeO 3 with an orthorhombic distorted perovskite structure was prepared by a sol–gel method. The gas-sensing properties have been studied to CO gas. The experimental results revealed that the La 0.68 Pb 0.32 FeO 3 showed smaller grain size, higher conductance and higher response to CO gas, compared with LaFeO 3 . We observed...
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