Stabilization of Superoxide and CO^-_3 Radicals through Crystalliation of CaCO_3
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概要
- 論文の詳細を見る
Unstable superoxide radicals (g_a=20100, g_b=2.064, g_c=2.049, and g_d=2.006) and CO^-_3 hole centers (g_x2.017, g_y=2.011, and g_z=2.002) were stabilized in CaCO_3 when the inorganic material was crystallized from radicat solution. The radicals surrounded by the lattice give strong electron spin resonance (ESR) signals at room temperature. The signal intensities of superoxide and CO^-_3 radicals generated in H_2O_2 solution and doped in CaCO_3 are much stronger than those obtained by adsorption. The color of radical-doped CaCO_3 is different from that of the radical-adsorbed one. On heating the samples, the spectrum and the color of the radical-doped CaCO_3 powder changed. The effects of impurities on the spectrum of radical-doped inorganic materials are studied. Some doping experiments have been conducted using other inorganic materials.
- 社団法人応用物理学会の論文
- 1993-08-15
著者
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Ikeya Motoji
Department Of Earth And Space Science Faculty Of Science Osaka University
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MEGURO Kazuyuki
Graduated School of Science and Technology, Chiba University
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Meguro Kazuyuki
Graduated School Of Science And Technology Chiba University
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Meguro K
Tohoku Univ. Sendai Jpn
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MEGURO Kazuhide
Department of Earth and Space Science, Faculty of Science, Osaka University
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Meguro Kazuhide
Department Of Earth And Space Science Faculty Of Science Osaka University
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IKEYA Motoji
Department of Earth and Space Science, Faculty of Science, Osaka University
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