A New Hypothesis Regarding the Surface Acidity of Binary Metal Oxides
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概要
- 論文の詳細を見る
We have proposed a new hypothesis that the acid sites on binary metal oxides are formed by an excess of a negative or positive charge in the mixed oxides and that whether the charge is excess or not, and whether it is positive or negative, are determined by the coordination numbers and valences of the positive and negative elements in the model structures pictured according to two postulates. The validity of the hypothesis is, in fact, 90% for the 31 kinds of binary oxides tested, much higher than the validity (48%) of Thomas' hypothesis. The hypothesis explains well the mechanism of the acidity generation of binary oxides and predicts whether the acid sites will be of the Brönsted or the Lewis type.
- 公益社団法人 日本化学会の論文
著者
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Sumiyoshi Takashi
Department Of Atomic Science And Nuclear Engineering Faculty Of Engineering Hokkaido University
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Tanabe Kozo
Department of Chemistry, Faculty of Science, Hokkaido University
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Kitagawa Jun
Central Research Laboratory, Mitsui Toatsu Chemicals, Inc.
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Shibata Katsue
Central Research Laboratory, Mitsui Toatsu Chemicals, Inc.
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Kiyoura Tadamitsu
Central Research Laboratory, Mitsui Toatsu Chemicals, Inc.
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