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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| rpcjpnv46p001.pdf | 1.33 MB | Adobe PDF | 見る/開く |
| タイトル: | ESR studies of the hexagonal hydrate of molybdenum oxide and its changes on treatments in vacuo and in hydrogen |
| 著者: | Sotani, Noriyuki |
| 著者名の別形: | ソタニ, ノリユキ |
| 発行日: | 30-Jun-1976 |
| 出版者: | The Physico-Chemical Society of Japan |
| 誌名: | The Review of Physical Chemistry of Japan |
| 巻: | 46 |
| 号: | 1 |
| 開始ページ: | 1 |
| 終了ページ: | 8 |
| 抄録: | The hexagonal hydrate of molybdenum trioxide and its change on treatments in vacuo and in hydrogen were studied by ESR spectroscopy. The hydrate gave no ESR signal, but the signal due to Mo(V) appeared in the case of the reduction of hexagonal MoO_3 and rhombic MoO_3. Mo(V) was formed in oxygen deficient MoO_3 as a defect during the reduction. The signal intensity changed according to the degree of the reduction. The intensity of the reduced sample decreased when oxygen was added and recovered its value by evacuation. This means that O_2 molecule adsorbs weakly on Mo(V). The mechanism of the change is intensity by oxygen adsorption and desorption is assumed as follows: O_2 + -Mo(V)-O-Mo(V)- → O_2 ... -Mo(VI)-O-Mo(IV)- or O_2 + -Mo(V)-[□!e]-Mo(V)- → O_2 ... -Mo(VI)-□-Mo(VI)- |
| URI: | http://hdl.handle.net/2433/47023 |
| 出現コレクション: | Vol.46 No.1 |
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