Abstract
In our laboratories we have been studying the synthesis and reactivity of binary actinide and lanthanide intermetallic compounds. In this work, the air-oxidation of ThCu{sub 2} and AnNi{sub 2} (An = Th, U) was followed by thermogravimetry (TG) and the products were characterized by X-ray powder diffraction (XRD). The heterobimetallic oxides obtained are described by the formulas 2MO.ThO{sub 2} (M = Cu, Ni) and 2NiO.UO{sub 3}. The thermogravimetric analysis under hydrogen of these heterobimetallic oxides show one mass loss for 2MO.ThO{sub 2} and two mass losses for 2NiO.UO{sub 3} over a wide range of temperature (293-1273K). The characterization by XRD shows that the reduction products are 2M.ThO{sub 2} (M = Cu, Ni) and 2Ni.UO{sub 2}, with all the actinides in the 4+ oxidation state. The actinide heterobimetallic oxides were described as copper or nickel supported catalysts.
Branco, Joaquim;
Jesus Dias, Catarina de;
Pereira Goncalves, Antonio;
Almeida Gasche, Teresa;
Pires de Matos, Antonio
[1]
- Departamento de Quimica, Instituto Tecnologico e Nuclear, Estrada Nacional 10, 2686-953 Sacavem (Portugal)
Citation Formats
Branco, Joaquim, Jesus Dias, Catarina de, Pereira Goncalves, Antonio, Almeida Gasche, Teresa, and Pires de Matos, Antonio.
Actinide heterobimetallic oxides (Th, U). Reduction studies.
Netherlands: N. p.,
2004.
Web.
doi:10.1016/j.tca.2003.11.060.
Branco, Joaquim, Jesus Dias, Catarina de, Pereira Goncalves, Antonio, Almeida Gasche, Teresa, & Pires de Matos, Antonio.
Actinide heterobimetallic oxides (Th, U). Reduction studies.
Netherlands.
https://doi.org/10.1016/j.tca.2003.11.060
Branco, Joaquim, Jesus Dias, Catarina de, Pereira Goncalves, Antonio, Almeida Gasche, Teresa, and Pires de Matos, Antonio.
2004.
"Actinide heterobimetallic oxides (Th, U). Reduction studies."
Netherlands.
https://doi.org/10.1016/j.tca.2003.11.060.
@misc{etde_20620510,
title = {Actinide heterobimetallic oxides (Th, U). Reduction studies}
author = {Branco, Joaquim, Jesus Dias, Catarina de, Pereira Goncalves, Antonio, Almeida Gasche, Teresa, and Pires de Matos, Antonio}
abstractNote = {In our laboratories we have been studying the synthesis and reactivity of binary actinide and lanthanide intermetallic compounds. In this work, the air-oxidation of ThCu{sub 2} and AnNi{sub 2} (An = Th, U) was followed by thermogravimetry (TG) and the products were characterized by X-ray powder diffraction (XRD). The heterobimetallic oxides obtained are described by the formulas 2MO.ThO{sub 2} (M = Cu, Ni) and 2NiO.UO{sub 3}. The thermogravimetric analysis under hydrogen of these heterobimetallic oxides show one mass loss for 2MO.ThO{sub 2} and two mass losses for 2NiO.UO{sub 3} over a wide range of temperature (293-1273K). The characterization by XRD shows that the reduction products are 2M.ThO{sub 2} (M = Cu, Ni) and 2Ni.UO{sub 2}, with all the actinides in the 4+ oxidation state. The actinide heterobimetallic oxides were described as copper or nickel supported catalysts.}
doi = {10.1016/j.tca.2003.11.060}
journal = []
issue = {1-2}
volume = {420}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Oct}
}
title = {Actinide heterobimetallic oxides (Th, U). Reduction studies}
author = {Branco, Joaquim, Jesus Dias, Catarina de, Pereira Goncalves, Antonio, Almeida Gasche, Teresa, and Pires de Matos, Antonio}
abstractNote = {In our laboratories we have been studying the synthesis and reactivity of binary actinide and lanthanide intermetallic compounds. In this work, the air-oxidation of ThCu{sub 2} and AnNi{sub 2} (An = Th, U) was followed by thermogravimetry (TG) and the products were characterized by X-ray powder diffraction (XRD). The heterobimetallic oxides obtained are described by the formulas 2MO.ThO{sub 2} (M = Cu, Ni) and 2NiO.UO{sub 3}. The thermogravimetric analysis under hydrogen of these heterobimetallic oxides show one mass loss for 2MO.ThO{sub 2} and two mass losses for 2NiO.UO{sub 3} over a wide range of temperature (293-1273K). The characterization by XRD shows that the reduction products are 2M.ThO{sub 2} (M = Cu, Ni) and 2Ni.UO{sub 2}, with all the actinides in the 4+ oxidation state. The actinide heterobimetallic oxides were described as copper or nickel supported catalysts.}
doi = {10.1016/j.tca.2003.11.060}
journal = []
issue = {1-2}
volume = {420}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Oct}
}