Trapping of mobile Pt species by PdO nanoparticles under oxidizing conditions

Journal of Physical Chemistry Letters

Volumn 5, Issue 12, 2014, Pages 2089-2093

  Carrillo, Cristihan ^a   Johns, Tyne R ^a   Xiong, Haifeng ^a   Delariva, Andrew ^a   Challa, Sivakumar R ^a   Goeke, Ronald S ^b   Artyushkova, Kateryna ^a   Li, Wei ^c   Kim, Chang H ^c   Datye, Abhaya K ^a  

^a University of New Mexico   (United States)

^b SANDIA NATIONAL LABORATORIES   (United States)

^c GENERAL MOTORS CORPORATION   (United States)

Author keywords

bimetallic nanoparticles; diesel oxidation catalyst; Ostwald ripening; sintering; TEM

Indexed keywords

CATALYSTS; CATALYTIC CONVERTERS; NANOPARTICLES; OSTWALD RIPENING; PHYSICAL VAPOR DEPOSITION; PLATINUM ALLOYS; SINTERING; THERMODYNAMICS; TRANSMISSION ELECTRON MICROSCOPY;

ACTIVE CATALYST; AUTOMOTIVE EXHAUST; BIMETALLIC NANOPARTICLES; DIESEL EXHAUSTS; DIESEL OXIDATION CATALYST; LARGE PARTICLES; OXIDIZING CONDITIONS; PT NANOPARTICLES;

PLATINUM;

EID: 84903148986     PISSN: None     EISSN: 19487185     Source Type: Journal    
DOI: 10.1021/jz5009483     Document Type: Article

References (13)

1. Department of Energy, EERE Publication and Product Library. AdvancedCombustion and Emission Control Technical Team Roadmap. http://www1.eere.energy.gov/vehiclesandfuels/pdfs/program/acec-roadmap-june2013. pdf (2013).
2. Kim, C. H.; Schmid, M.; Schmieg, S.; Tan, J. The Effect of Pt-Pd Ratio on Oxidation Catalysts under Simulated Diesel Exhaust; SAE Technical Paper 2011-01-1134, April 2011.
3. Graham, G. W.; Jen, H. W.; Ezekoye, O.; Kudla, R. J.; Chun, W.; Pan, X. Q.; McCabe, R. W. Effect of Alloy Composition on Dispersion Stability and Catalytic Activity for NO Oxidation over Alumina-Supported Pt-Pd Catalysts Catal. Lett. 2007, 116, 1-8
4. 2 in Reactive Atmospheres J. Catal. 1979, 56, 198-218
5. Johns, T. R.; Gaudet, J. R.; Peterson, E. J.; Miller, J. T.; Stach, E. A.; Kim, C. H.; Balogh, M. P.; Datye, A. K. Microstructure of Bimetallic PtPd Catalysts under Oxidizing Conditions ChemCatChem 2013, 5, 2636-2645
6. Alcock, C. B.; Hooper, G. W. Thermodynamics of the Gaseous Oxides of the Platinum-Group Metals Proc. R. Soc. London, Ser. A 1960, 254, 551-561
7. Peuckert, M. XPS Study on Surface and Bulk Palladium Oxide, Its Thermal-Stability, and a Comparison with Other Noble-Metal Oxides J. Phys. Chem. 1985, 89, 2481-2486
8. van Laake, L.; Hart, A. J.; Slocum, A. H. Suspended Heated Silicon Platform for Rapid Thermal Control of Surface Reactions with Application to Carbon Nanotube Synthesis Rev. Sci. Instrum. 2007, 78, 083901
9. 2/Si(111): A High-Pressure X-ray Photoelectron Spectroscopy Study ACS Nano 2012, 6, 10743-10749
10. Simonsen, S. B.; Chorkendorff, I.; Dahl, S.; Skoglundh, M.; Sehested, J.; Helveg, S. Direct Observations of Oxygen-Induced Platinum Nanoparticle Ripening Studied by In Situ TEM J. Am. Chem. Soc. 2010, 132, 7968-7975
11. 2) Thermochim. Acta 1975, 11, 79-88
12. Alexeev, O. S.; Li, F.; Amiridis, M. D.; Gates, B. C. Effects of Adsorbates on Supported Platinum and Iridium Clusters: Characterization in Reactive Atmospheres and during Alkene Hydrogenation Catalysis by X-ray Absorption Spectroscopy J. Phys. Chem. B 2005, 109, 2338-2349
13. Schweizer, A. E.; Kerr, G. T. Thermal-Decomposition of Hexachloroplatinic Acid Inorg. Chem. 1978, 17, 2326-2327