@article{oai:kpu.repo.nii.ac.jp:00005496, author = {金井, 宏俶 and Kanai, Hiroyoshi and 水谷, 浩 and Mizutani, Hiroshi and 田中, 庸裕 and Tanaka, Tsunehiro and 船引, 卓三 and Funabiki, Takuzo and 吉田, 郷弘 and Yoshida, Satohiro and 高野, 幹夫 and Takano, Mikio}, journal = {京都府立大学学術報告. 理学・生活科学, The scientific reports of the Kyoto Prefectural University. Natural science and living science}, month = {Nov}, note = {The Fe K-edge X-ray absorption spectra have been recorded to study local structures around iron for fine powdery α-Fe_2O_3-SnO_2 gas sensor which was prepared by the thermal decomposition of coprecipitates from aqueous ferric sulfate and stannic chloride solutions at pH 8. Tin atoms are substituted for iron atoms in the corundum structure of α-Fe_2O_3 below 15 mo 1% of SnO_2 which is the limit of dissolution. Further addition of SnO_2 brings about the system unstable by that SnO_2 enters the lattice as a substitutional defect and produces tetrahedral iron oxide species. The high sensor sensitivity for CH_4 is intimately correlated with the amount of dissolved SnO_2 into α-Fe_2O_3.}, pages = {49--53}, title = {鉄-スズ系複合酸化物のガスセンサ性能と局所構造(B. 生活科学)}, volume = {42}, year = {1991}, yomi = {カナイ, ヒロヨシ and ミズタニ, ヒロシ and タナカ, ツネヒロ and フナビキ, タクゾウ and ヨシダ, サトヒロ and タカノ, ミキオ} }