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High performance low temperature indium doped mesoporous tin oxide based NO2 sensor
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DOI：10.1016/j.jallcom.2026.189056.png)
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Abstract
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• Indium doped mesoporous SnO2 with varying dopant concentrations (1.1 mol % - 5.9 mol %) were prepared by soft template method • Sensors were fabricated using Inter-digited electrodes of platinum via spin coating • 3.5 mol % In3+ doped m-SnO2 sensor showed the best NO2 sensing efficiency at 50°C • The superior sensing efficiency is attributed to the large surface area, small grain size and creation of oxygen vacancies
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