The location of oxygen atoms in vanadium-oxygen alloys by means of neutron diffraction
β Scribed by C.W Tucker Jr.; A.U Seybolt; H.T Sumsion
- Publisher
- Elsevier Science
- Year
- 1953
- Weight
- 444 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0001-6160
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β¦ Synopsis
A comparison of X-ray and neutron diffraction is made for the purpose of Iocating oxygen atoms in vanadium-oxygen alloys. In the region of low oxygen content, neutron diffraction possesses a large advantage because of the large scattering factor for oxygen and the low value for vanadium with neutrons. In an alloy containing 21.0 atamic per cent oxygen, the oxygen atoms are found in the actahedral positions of a body-centered tetragonal lattice, as mferred by earlier workers using X-ray diffraction.
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The room temperature crystal structure of the fast oxygen ion conductor Bi 4 (V 0.85 Co 0.15 ) 2 O 11Ψ (BICOVOX.15) was refined within the average tetragonal unit cell from single-crystal neutron diffraction data. The unit cell dimensions are a T β«Ψβ¬ 3.929(2) A s and c T β«)9(674.51Ψβ¬ A s in space gr
The temperature dependence of the rate constant for the exchange reaction between oxygen atoms and dioxygen molecules has been studied using the oxygen isotopes and . The reaction was studied by VIS-photolysis of ozone in the presence of isotopic 16 18 O O dioxygen and with nitrogen as a bath gas a
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