@article{oai:nagasaki-u.repo.nii.ac.jp:00016772,
 author = {Yuan, Luyang and Hyodo, Takeo and Shimizu, Yasuhiro and Egashira, Makoto},
 issue = {5},
 journal = {Sensors and Materials},
 month = {},
 note = {Mesoporous SnO2 (mp-SnO2) and meso-macroporous SnO2 (m-mp-SnO2) pellet-type gas sensors were fabricated by the sol-gel method employing SnCl4-5H2O as a Sn source. The mesoporous structure was controlled by C20H37O 7SNa, while the macroporous structure was controlled by polymethylmethacrylate (PMMA) microspheres. The introduction of macropores by the addition of PMMA microspheres into mp-SnO2 tends to increase the pore diameter and crystallite size. The large amount of macropores introduced into mp-SnO2 sensors by the addition of PMMA microspheres in the preparation process significantly increased the resistance of all the sensors. Among all those tested, the mp-SnO2 sensor with only 5 wt% Sb 2O5 added exhibited the largest response at 400°C. The 70% response and recovery times could be reduced by the introduction of macropores., Sensors and Materials, 21(5), pp.241-250; 2009},
 pages = {241--250},
 title = {Preparation of Mesoporous and meso-macroporous SnO2 powders and application to H2 gas sensors},
 volume = {21},
 year = {2009}
}