TY  - JOUR
AU  - Wetzel, Oliver
AU  - Prymak, Oleg
AU  - Loza, Kateryna
AU  - Gumbiowski, Nina
AU  - Heggen, Marc
AU  - Bayer, Peter
AU  - Beuck, Christine
AU  - Weidenthaler, Claudia
AU  - Epple, Matthias
TI  - Water-Based Synthesis of Ultrasmall Nanoparticles of Platinum Group Metal Oxides (1.8 nm)
JO  - Inorganic chemistry
VL  - 61
IS  - 12
SN  - 0020-1669
CY  - Washington, DC
PB  - American Chemical Society
M1  - FZJ-2022-02173
SP  - 5133 - 5147
PY  - 2022
AB  - Ultrasmall nanoparticles of platinum group metal oxides (core diameter of about 1.8 nm) were prepared by alkaline hydrolysis of metal precursors in the presence of NaBH4 and by colloidal stabilization with tripeptide glutathione. We obtained water-dispersed nanoparticles of Rh2O3, PdO, RuO2, IrO2, Os/OsO2, and Pt/PtO. Their size was probed using high-resolution transmission electron microscopy, differential centrifugal sedimentation, small-angle X-ray scattering, and diffusion-ordered 1H NMR spectroscopy (1H DOSY). Their oxidation state was clearly determined using X-ray photoelectron spectroscopy, X-ray powder diffraction, and electron diffraction. The chemical composition of the nanoparticles, that is, the ratio of the metal oxide core and glutathione capping agent, was quantitatively determined by a combination of these methods.
LB  - PUB:(DE-HGF)16
C6  - 35285631
UR  - <Go to ISI:>//WOS:000779822100034
DO  - DOI:10.1021/acs.inorgchem.2c00281
UR  - https://juser.fz-juelich.de/record/907710
ER  -