Changes in Catalytic and Adsorptive Properties of 2 nm Pt3Mn Nanoparticles by Subsurface Atoms
Catalysis and Reaction Engineering
02 engineering and technology
Chemical Engineering
540
0210 nano-technology
01 natural sciences
Nanoscience and Nanotechnology
543
0104 chemical sciences
DOI:
10.1021/jacs.8b08162
Publication Date:
2018-10-15T05:25:14Z
AUTHORS (13)
ABSTRACT
Supported multimetallic nanoparticles (NPs) are widely used in industrial catalytic processes, where the relation between surface structure and function is well-known. However, effect of subsurface layers on such catalysts remains mostly unstudied. Here, we demonstrate a clear supported 2 nm core–shell NPs with atomically precise high temperature stable Pt3Mn intermetallic measured by situ synchrotron X-ray Diffraction, difference Absorption Spectroscopy, Energy Dispersive Spectroscopy. The have 98% selectivity to C–H over C–C bond activation during propane dehydrogenation at 550 °C compared 82% for Pt subsurface. correlated significant reduction heats reactant adsorption due as discerned theory well experiment. findings this work highlight importance NP catalysts, which can be tuned via controlled formation. Such approach generally applicable modifying NPs, adding another dimension tunability their performance.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (47)
CITATIONS (150)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....