Abstract
Cd/In-glycerate spheres are synthesized through a simple solvothermal method. After thermal treatment, these Cd/In-glycerates can be converted into CdIn(2)O(4) spheres. Many characterization methods were performed to reveal the microstructure and morphology of the CdIn(2)O(4). It was found that pure CdIn(2)O(4) phase was obtained for the Cd/In starting materials at ratios of 1:1.6. The CdIn(2)O(4) spheres are composed by a large number of nanoparticles subunits. The CdIn(2)O(4) sphere-based sensor exhibited a low detection limit (1 ppm), high response (81.20 to 500 ppm n-butanol), fast response (4 s) and recovery (10 s) time, good selectivity, excellent repeatability, and stability at 280 °C. Our findings highlight the possibility to develop a novel gas sensor based on CdIn(2)O(4) for application in n-butanol detection with high performance.