Summary
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1.
A study has been made of the relative reactivities of the nickel and hydrogen components of a skeletal catalyst in their reaction with inorganic oxidizing agents at room temperature.
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2.
When the catalyst is treated with potassium permanganate, both the nickel and the hydrogen take part in th process.
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3.
Kinetic and analytical studies show that sodium iodate reacts primarily with the sorbed hydrogen, but reaction occurs also with the metal.
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4.
The rate of reaction of skeletal nickel with oxygen is much lower by a factor of 5–6 than that of its reaction with p-benzoquinone or sodium iodate. About two-thirds of the oxygen consumed reacts with hydrogen, and about one-third with the metal.
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5.
The results show that the high reducing power of skeletal nickel is due to the presence of sorbed hydrogen and to the high degree of dispersion of the metal itself.
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Literature cited
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