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XPS study of neptunium and plutonium doped iron-bearing and iron-free sodium-aluminum-phosphate glasses

机译:XPS研究Neptunium和钚掺杂铁轴承和无铁铝 - 磷酸盐玻璃

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AbstractThe iron-free and iron-bearing (Np, Pu)-containing sodium-aluminum-phosphate glass samples were studied by X-Ray photoelectron spectroscopy. Oxidation states of neptunium, plutonium and iron, and elemental composition of the surfaces of the samples studied were determined. In both iron-free and iron-bearing glasses Np is present predominantly as Np(V) on the surface and Np(IV) in the bulk. Pu(III) dominates over Pu(IV)/(V) in the iron-free glass while oxidized forms of Pu prevail in the iron-bearing glass.Highlights?Np on the surface of phosphate glasses is predominantly pentavalent on the surface and tetravalent in the bulk.?Major Pu is trivalent in iron free glass and tetra- and pentavalent in iron-bearing glass.?Pu is mainly tetra- and pentavalent of the surface of glasses and trivalent in the bulk.]]>
机译:<![cdata [ 抽象 无氧化铁和铁轴承(NP,PU) - 培养铝 - 磷酸玻璃样品由X射线光电子体光谱研究。确定了研究的Neptunium,钚和铁的氧化状态和研究的样品表面的元素组成。在无铁和轴承玻璃中,NP主要存在于块状表面和NP(IV)上的NP(V)。 PU(iii)在无铁玻璃中占据PU(IV)/(v)的占主导地位,而在铁轴承玻璃中氧化形式的PU占上风。 < / ce:摘要> 亮点 磷酸盐表面表面上的np主要是在散装中的表面和四价的pentavalent。 主要PU是铁自由玻璃和铁轴承玻璃的四级和五价的三价。 PU主要是Tetra - 玻璃表面的五价和散装中的三价。 ]]>

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