Oxidation by H2O(g) in the presence of H2(g) of UO2 doped with Pd nanoparticles

被引：3

作者：

Espriu-Gascon, Alexandra ^{[1
]}

Llorca, Jordi ^{[1
]}

Dominguez, Montserrat ^{[1
]}

Gimenez, Javier ^{[1
]}

Casas, Ignasi ^{[1
]}

de Pablo, Joan ^{[1
,2
]}

机构：

[1] Univ Politecn Catalunya Barcelona Tech, Barcelona Res Ctr Multiscale Sci & Engn, Av Eduard Maristrany 10-14, Barcelona 08930, Spain

[2] Fundacio CTM Ctr Tecnol, Pl Ciencia 2, Manresa 08243, Spain

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2018年 / 318卷 / 02期

关键词：

UO2; oxidation; Epsilon particles; Metallic particles; Spent nuclear fuel; Palladium nanoparticles; Molecular hydrogen; WATER-VAPOR; SPENT FUEL; MO-RU; HYDROGEN; BEHAVIOR; SURFACE; MODEL; XPS;

D O I：

10.1007/s10967-018-6217-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This work studies the influence of epsilon particles and metallic precipitates, simulated through the deposition of Pd nanoparticles on non-irradiated UO2, on the oxidation of the spent nuclear fuel (SNF). The presence of Pd nanoparticles favored the reduction by hydrogen of oxidized uranium phases located on the UO2 surface, decreased the oxidation of the UO2 by H2O in the absence of hydrogen, and, in the presence of hydrogen and water vapor, no oxidation of the UO2 by water was detected, contrasting experiments without Pd nanoparticles.

引用

页码：1201 / 1207

页数：7

共 26 条

[1] OXIDATION OF CRYSTALLINE UO2 STUDIED USING X-RAY PHOTOELECTRON-SPECTROSCOPY AND X-RAY-DIFFRACTION [J].