Abstract
Abstract Flexural In 2 O 3 nanowires with high aspect ratios were synthesized via a hydrothermal–annealing route. The as-synthesized In 2 O 3 nanowires had diameters of 30–50 nm and length up to several microns. Various reaction parameters, such as the kind of reagents, the time of hydrothermal treatment, annealing time and annealing temperature, were investigated by a series of control experiments. The as-synthesized In 2 O 3 nanowires showed excellent gas-sensing properties to NO 2 in terms of sensor response and selectivity.
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