Graphic depiction of multistep synthesis of bimetallic nanoparticles including PdPt, PtAu, RuIr, FeIr, NiIr, PdIr, PtIr, CoIr, RuPt. Lower part of image background shows TEM image of synthesized nanoparticles on a silica support.
Scientific Achievement
Nanoparticle synthesis by heterometallic complex salts reduction using a sequential adsorption approach allows the controlled production of new types of supported bimetallic nanoparticles.
Significance and Impact
This synthesis breakthrough provides a versatile platform for the creation of well-defined silica-supported bimetallic nanoparticles useful in catalytic processes.
Research Details
- Use of an aprotic solvent is a key to producing uniform <3nm diameter of nanoparticles
- Optical spectroscopy confirms electrostatic adsorption nature of adsorption mechanism
- Energy-dispersive X-ray spectroscopy confirms the 1:1 bimetallic nature of nanoparticles
K. Ding, D. A. Cullen, L. Zhang, Z. Cao, A. Roy, I. N. Ivanov, D. Cao. Science, 362, 560-564, (2018). DOI: 10.1126/science.aau4414
