platinum group adsorbed

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  Hydrogenation of Carbon Monoxide Adsorbed on Supported Platinum Group ...

  Hydrogenation of carbon monoxide adsorbed on supported platinum group metals was studied by the in-situ IR spectroscopy and the temperature programmed desorption (TPD) method using hydrogen as a carrier gas. The main product of hydrogenation was methane, and the TPD gave the spectra of methane formation which showed peaks between 150°C …

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  Enhancement of surface self-diffusion of platinum atoms by adsorbed ...

  1999311 · Adsorbed hydrogen atoms are known to be capable of both promoting and inhibiting self-diffusion 3,4,5,6,7, offering the prospect of using adsorbed gases to control growth or sintering processes 8 ...

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  Why Methanol Electro-Oxidation on Platinum in Water

  202277 · The role played by adsorbed OH in the methanol electro-oxidation to CO on platinum in aqueous medium is supported by DFT calculations, as well as the reason why this reaction is not observed in ...

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  Dual-site catalysts featuring platinum-group-metal atoms on …

  2023527 · The inclusion of platinum-group metals for CO2 reduction electrocatalyst design may trigger the unwanted hydrogen evolution reaction. However, here the authors show that single-atom Pd and Pt on ...

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  Adsorbed formate: the key intermediate in the …

  2005929 · The adsorption of NH3 (on top) and NH2 (bridge) is more favorable on Pt (100) than on Pt (111), while similar adsorption energies were computed for NH (hollow) and N (hollow) on both surfaces. The remarkably lower adsorption energy of NH2 over Pt (111) as compared with Pt (100) (the difference being approximately 0.7 eV) can be related to ...

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  Role of lattice oxygen and oxygen vacancy sites …

  SYNOPSIS. The research presented in this paper investigated the practical aspects of the recovery of platinum group metals (PGMs) from a dilute cyanide leach solution containing base metals, in a manner similar to that used for gold extraction in a typical CIP process, and focuses on both the adsorption and elution stages.

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  A molecular beam surface scattering study of ammonia oxidation …

  Ammonia Dehydrogenation over Platinum-Group Metal Surfaces. Structure, Stability, and Reactivity of Adsorbed NHx Species. ... J. M. Ricart, and, J. Pérez-Ramírez. DFT Characterization of Adsorbed NHx Species on Pt(100) and Pt(111) Surfaces. The Journal of Physical Chemistry B 2005, 109 (38) , 18061-18069.

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  In Situ Characterization of the Surface Reaction between …

  2000229 · Ammonia Dehydrogenation over Platinum-Group Metal Surfaces. Structure, Stability, and Reactivity of Adsorbed NHx Species. The Journal of Physical Chemistry C 2007, 111 (2) , 860-868. DOI: 10.1021/jp064742b. Jinlong ... DFT Characterization of Adsorbed NHx Species on Pt(100) and Pt(111) Surfaces.

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