RT Journal Article
T1 Synthesizing small-sized monodisperse molybdenum nanoparticles as potential precursors for medical radioisotopes
A1 Arnosa Prieto, Ángela
A1 González Gómez, Manuel Antonio
A1 García Acevedo, Pelayo
A1 Alves, Lisandra Cristina de Castro
A1 Piñeiro Redondo, Yolanda
A1 Rivas Rey, José
K1 Molybdenum
K1 Nanoparticles
K1 Thermal decomposition
K1 Hexacarbonylmolybdenum
AB Molybdenum-99 (99Mo) is used to produce technetium-99 m (99mTc), one of the most used medical radioisotopes in the world. 99Mo is currently created by fission of uranium-235 (235U) in a small number of research nuclear fission reactors. Several problems related to the use of 235U as primary source is causing a global 99Mo generation crisis. Therefore, we are facing the need of finding new viable and safe production alternatives. Neutron activation of molybdenum is a promising candidate in which the ideal target for 99Mo production are small monodisperse molybdenum nanoparticles (Mo NPs). However, the reported procedures for the obtention of Mo NPs present either the lack of simplicity of the employed synthetic methods or the inappropriate size and monodispersity of the synthesized Mo NPs. Here, we report a simple synthetic procedure for the obtention of small-sized monodisperse metallic Mo NPs. In the studied conditions, thermal decomposition of Mo(CO)6 produced oleylamine coated Mo NPs. The oleylamine layer was included with the purpose of avoiding oxidation. Although an oxide patina was still formed on the surface of the Mo NPs, the core remains in a metallic phase after several weeks from its production, as it was confirmed by X-ray photoelectron spectroscopy analysis (XPS). The described synthetic procedure provides a simple method for the obtention of Mo NPs with optimum characteristics as non-fission method for 99Mo production
PB Elsevier
SN 2468-5194
YR 2024
FD 2024
LK http://hdl.handle.net/10347/33241
UL http://hdl.handle.net/10347/33241
LA eng
NO Materials Today Chemistry, Volume 35, 2024, 101854
NO We thank Prof. Carlos Vázquez Vázquez for his invaluable advice. This work was supported by the Programa de Axudas de apoio á etapa predoutoral 2020 of Xunta de Galicia, by the European Commission under the BOW project (FETPROACT-EIC-05-2019, Grant 952183), CARTsol project (PLEC2022-009217 funded by MICINN/AEI/10.13039/501100011033 and NextGenerationEU/PRTR) and partially supported by the Spanish Ministry of Science and Innovation (ref PID2020-112626RB-C21), Modalities « Research Challenges» and «Knowledge Generation» and the Regional Consellería de Innovación Program for the Grupos de Referencia Competitiva 2021 —GRC2021 project of Xunta de Galicia
DS Minerva
RD 29 abr 2026