2018年3月1日 · A (111) air-exposed surface of UO 2 thin film (150 nm) on (111) YSZ (yttria-stabilized zirconia) before and after the Ar + etching and subsequent in situ annealing in the …

An effective technique for determination of ionic composition (U4+, U5+, U6+) and oxygen coefficient in UO2+x was introduced and developed. This method is based on the U 5f and U …

Polycrystalline uranium dioxide is known almost always to con-tain excessive oxygen. Its general formula is UO2+x (x>0.01). As oxygen excess grows, UO2 cell shrinks to ax =5.4690–0.12x …

2021年1月1日 · UO 2 pellets exposed to 1.85 MBq and 3.30 MBq Am-241 sources with a 30 μm separation in solution were studied under Ar and H 2 atmospheres. The 1.85 MBq Am-241 …

2008年3月1日 · We have shown that the simulated U4f XPS spectrum of the free U 4+ cation has a significant multiplet structure that is strongly modified and hidden by interatomic effects due …

2018年3月1日 · Irradiation-Driven Restructuring of UO2 Thin Films: Amorphization and Crystallization. This work reports on an entirely different radiation-induced restructuring of the …

2016年8月15日 · XPS determination of the oxygen coefficient kO = 2 + x and ionic (U(4+), U(5+), and U(6+)) composition of oxides UO2+x formed on the surfaces of differently oriented (hkl) …

Powder X-ray diffractometry (p-XRD) and X-ray photoelectron spectroscopy (XPS) were used to analyze powders of the intermediate U-oxides and resulting UO2 to evaluate the phase and …

2008年3月1日 · 虽然两种情况下的主要 xps 特征相似，但配体场效应以重要方式改变了多重态结构，从而更好地模拟了 uo 2 的实验数据。 初始状态和最终状态共价性均未显着降低 4f-5f 交换 …

In order to solve the problem that UO2 in direct ethanol fuel cell anode catalysts is easily lost in acidic solution, resulting in the degradation of catalytic performance, this paper prepared a...