Synthesis of TiO2 Powder Doped with Rare Earth Elements by Sol-Gel Method and Its Gas Sensing Properties
SONG Jin-ling ZHOU Chang-cai MOU Lian-wei GUO Guan-ming CAI Ying ZHANG Yin
School of Rare Earth, Inner Mongolia University of Science and Technology Inner Mongolia Mengda New Energy Chemical Industry Base Development Co. Ltd. Inner Mongolia Mengda New Energy Chemical Industry Base Development Co. Ltd. School of Rare Earth, Inner Mongolia University of Science and Technology School of Rare Earth, Inner Mongolia University of Science and Technology Material and Metallurgical School, Inner Mongolia University of Science & Technology
Abstract：TiO2 and TiO2 powders doped with different rare earth ions were prepared by sol-gel method, and their structures characterized by XRD. The results indicate that the prepared TiO2 powder has anatase structure, and rare earth ion doping can restrain the growth of TiO2 crystals. Moreover, its gas sensing properties towards formaldehyde, toluene and acetone gases were measured by a gas sensing instrument. The results show that the TiO2 doped with Ce (TiO2:Ce) exhibits better sensitivity and selectivity towards those gases, which may be attributed to the enhanced capability of adsorbed oxygen on the surface of Ce-doped TiO2. TEM analysis shows that the morphology of TiO2:Ce powder is particles with the diameters of 5~12 nm.
宋金玲 周长才 牟连维 郭冠铭 蔡颖 张胤. 溶胶-凝胶法制备掺杂稀土元素二氧化钛及其气敏性能[J]. , 2013, 13(1): 170-174.
SONG Jin-ling ZHOU Chang-cai MOU Lian-wei GUO Guan-ming CAI Ying ZHANG Yin. Synthesis of TiO2 Powder Doped with Rare Earth Elements by Sol-Gel Method and Its Gas Sensing Properties. , 2013, 13(1): 170-174.
2013, Vol. 13 
