RT info:eu-repo/semantics/article
T1 Laser ablation synthesis of metal¿doped gold clusters from composites of gold nanoparticles with metal organic frameworks
A1 Peña Méndez, Eladia María
A1 Pečinka, Lukáš
A1 Conde González, José Elías
A1 Havel, Josef
A2 Química
A2 Grant Agency of the Czech Republic (Project No. GA18-03823S) and by project
MUNI/A/1421/2019 Analytical and physico-chemical methods in the investigation of geologicalbiological and
synthetic materials.
Ministry of Economy and Competitiveness (Spain), project Ref. MAT2017-89207-R.
AB Metal-doped gold clusters, mainly cages, are receiving rapidly increasing attention due to theirtunable catalytic properties. Their synthesis is mostly based on complex procedures, including severalsteps. In this work, via adsorption of gold nanoparticles (AuNPs) from aqueous solution to MOF (metalorganic frameworks) of M=Co, Cu, Ni, and Zn with various linkers the {AuNPs, MOF} compositeswere prepared. These composites were used for laser ablation synthesis (LAS) using a common massspectrometer. Several series of positively and negatively charged AumMn+/− clusters were observed inmass spectra and their stoichiometry (m= 1–35, n= 1–5) was determined. For each dopant (Co, Cu, Ni,and Zn) ~ 50 diferent clusters were identifed in positive, as well as in negative ion modes. About 100of these clusters were proposed to be endohedral metal-doped gold cages (for m> 12). The developedapproach represents a simple procedure for generating metal-doped gold clusters or endohedralmetal-doped gold cages materials with potential applications in medicine and/or electronics
YR 2021
FD 2021
LK http://riull.ull.es/xmlui/handle/915/35192
UL http://riull.ull.es/xmlui/handle/915/35192
LA en
NO This work was supported by the Grant Agency of the Czech Republic (Project No. GA18-03823S) and by projectMUNI/A/1421/2019 Analytical and physico-chemical methods in the investigation of geological, biological andsynthetic materials. E.M. P.-M. and J.E. C-G. would like to thank the Ministry of Economy and Competitiveness(Spain), project Ref. MAT2017-89207-R.
DS Repositorio institucional de la Universidad de La Laguna
RD 27-dic-2024