Summary
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1.
Harmonic analysis was carried out on profiles of x-ray interference lines of specimens of Raney nickel catalyst — untreated, heat-treated, and chemically treated to remove hydrogen. It was shown that the diffuseness of the x-ray interference lines of Raney nickel catalysts is due to the small size of the crystals (blocks of coherent scattering of x-rays).
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2.
It was shown that there is a relationship between the change produced by heat in the size of the crystals of Raney nickel and the change in catalytic activity.When Raney nickel is heat-treated at temperatures as high as 570°, the dispersity and activity of the catalyst still remains fairly high.
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3.
A scheme for the distribution of hydrogen in Raney nickel is proposed.
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Krylov, V.D., Freidlin, L.K. & Rudneva, K.G. Relationship between the activity and fine crystalline structure of raney nickel catalyst. Russ Chem Bull 6, 561–567 (1957). https://doi.org/10.1007/BF01169271
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DOI: https://doi.org/10.1007/BF01169271