期刊
RSC ADVANCES
卷 6, 期 51, 页码 45085-45092出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra06816b
关键词
-
资金
- National Natural Science Foundation of China [21275016, 21575011]
Rare earth (Tm, Er, La, Yb and Ce)-doped In2O3 nanostructures with three-dimensionally ordered macroporous structures (3DOM) were prepared by a colloidal crystal templating method, and their ethanol sensing properties were investigated. Rare earth doping improved the gas response and lowered the optimum operating temperature. Tm-doped 3DOM In2O3 had the best gas-sensing performance, and the gas sensitivity for 100 ppm ethanol was seven times higher than that of pure 3DOM In2O3. The reason for the different sensitivities generated by the five doping elements and the underlying mechanism of the enhanced gas response for the samples were studied.
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