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Showing 1 to 4 of 4 for “"supported platinum particles"”.
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Nuclear magnetic resonance study of quantum size effects in supported platinum particles
… quantum size effects in the NMR of small, supported platinum particles with a monolayer of carbon monoxide chemically adsorbed to the surface. The effects are observed in the 13c and 195pt NMR, primarily at 4.2K. He reports nonmetallic spin-lattice relaxation, and changes in the Knight …
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Nuclear magnetic resonance study of quantum size effects in supported platinum particles
… quantum size effects in the NMR of small, supported platinum particles with a monolayer of carbon monoxide chemically adsorbed to the surface. The effects are observed in the $\sp{13}$C and $\sp{195}$Pt NMR, primarily at 4.2K. He reports nonmetallic spin-lattice relaxation, and changes in …
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A New Approach to the Study of Surface Phenomena: Measurements of Diffusion Rates, Intermolecular Distances and Electronic Properties of Carbon Monoxide Chemisorbed on Supported Platinum Catalysts by Nuclear Magnetic Resonance
… resonance to study the chemisorption of CO on supported platinum particles. The particles are 10 to 50 (ANGSTROM) in diameter, supported on alumina. CO is 90% enriched with ('13)CO. NMR data were taken from 4 K to 600 K.
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A new approach to the study of surface phenomena, measurements of diffusion rates, intermolecular distances and electronic properties of CO chemisorbed on supported platinum catalysts by nuclear magnetic resonance
… resonance to study the chemisorption of CO on supported platinum particles. The particles are 10 to 50 Ansgtrom in diameter, supported on alumina. CO is 90% enriched with 13CO. NMR data were taken from 4 K to 600 K. He shows that a measurement of transverse relaxation at 77 K can be used to …