Surface alloying and mixed valence in thin layers of Ce and Pd on Ru(0001)

Tollefsen, H.; Laastad, E.O.; Raaen, S.

doi:10.1016/j.susc.2008.10.039

Cited by 6 publications

(1 citation statement)

References 41 publications

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“…Average Pd particle size [b] [nm] www.chemelectrochem.org 1.35 for the carbon and ceria supported catalysts, respectively. The existence of PdCl x specieso nt he surface of Pd prepared by chlorinated precursors hasb een reported before, [17] and it seems that their presence can be affected by the nature of the support. The removal of chlorine can take place by ad ryingreduction pretreatment, but still as mall amountmay remain in the catalyst.…”

Section: Catalystmentioning

confidence: 99%

Role of the Metal‐Oxide Support in the Catalytic Activity of Pd Nanoparticles for Ethanol Electrooxidation in Alkaline Media

et al. 2015

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The promotional role of oxide supports (CeO2, SnO2, TiO2) on ethanol electrooxidation in alkaline media over Pd nanoparticles (NPs) is presented and compared to Pd on carbon. XPS revealed a shift to lower binding energy of the Pd 3d peak when Pd NPs were deposited on metal oxides, implying a charge transfer from the oxides to the Pd. The catalytic activity of the supported NPs for ethanol electrooxidation was assessed by using cyclic voltammetry and chronoamperometry. The electrooxidation products were monitored in situ, using polarization modulation–infrared reflection absorption spectroscopy (PM‐IRRAS), which revealed that the supports influence the selectivity of reactions on Pd. Pd/CeO2 has superior selectivity towards breaking the C−C bond to produce CO2 compared to the other three supports. Acetate, as a product, was evident on all of the catalysts, but at different ratios. Pd supported on metal oxides showed higher activity and, in particular, CeO2 and SnO2 stand out as the best supports.

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Section: Catalystmentioning

confidence: 99%