Journal
IONICS
Volume 27, Issue 8, Pages 3647-3653Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-021-04057-2
Keywords
In2O3; Spheres; Materials preparations; Crystal structures; Sensors
Funding
- National Natural Science Foundation of China [51802276, 21878257]
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In2O3 spheres were successfully prepared using a nitric acid-assisted solvothermal method, with the morphology and structure of the products controlled by the nitric acid content. The sensing performance of In2O3 was enhanced by the addition of nitric acid, particularly with In2O3 spheres with partial broken structures showing a high response to ethanol and good selectivity and stability at 250 degrees C.
In2O3 spheres were successfully prepared by nitric acid-assisted solvothermal method. The morphology and structure of the products can be controlled by the content of nitric acid. After adding with nitric acid, the sensing performance of In2O3 has been improved. In particular, the In2O3 spheres with partial broken structures prepared with 100 mu L nitric acid show high response of 250 to 50 ppm ethanol at the operating temperature of 250 degrees C and exhibit good selectivity and stability.
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