Abstract
A high-yield synthesis of SnO2 nanoparticles via a facile, economical and easily scalable solid-state molten salt synthesismethod has been demonstrated. The inorganic additive, molar ratios of chemicalsand annealing temperature were found to control the size and porosity of theSnO2 nanoparticles.The synthesized SnO2 nanostructures were uniform, well dispersed and exhibited high crystallinity. Hydrogen sensors made fromthe SnO2 nanoparticles were found to possess high sensitivity and stability. Other thantailoring the material’s structure in terms of size and porosity, another potentialmethod of enhancing the gas sensitivity is functionalization with noble Pd metal.
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