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An amperometric type NH3 sensor based on La10Si5MgO26 electrolyte is reported in this paper. The design of this type sensor is significantly simplified due to the in-situ preparation of the nano-structured CoWO4 sensing electrode in the pre-sintered porous La10Si5MgO26 layer by impregnation method. The XRD and SEM investigations show that the CoWO4 particles with the diameters about 50–100 nm are...
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