The experiment results showed that the oxygen sensitivity of nano-CeO_2 coating TiO_2 was much better than that of pure TiO_2, and achieved the bst one while 4.9mo1% CeO_2 coating.

• 实验结果表明:纳米CeO_2包覆纳米TiO_2材料的氧敏性能优于纯TiO_2材料；当包覆4.；9mol%25CeO_2时材料的氧敏性能最好。