Untitled

Harmsen, Jma Jan; Hoebink, Jhbj Jozef; Schouten, JC Jaap

doi:10.1023/a:1016660509636

Cited by 37 publications

(22 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exhaust catalysis and CO oxidation was largely restricted to noble metals dispersed on oxide supports like Al 2 O 3 . [1][2][3][4][5][6][7][8][9][10][11] Hegde et al in their account 'Noble metal ionic catalyst' have shown the effect of substituting noble metal ions in CeO 2 and TiO 2 supports on exhaust catalysis. 12 When oxide supports are doped with lower valent noble metal ions, it creates oxygen vacancies in the support oxide to balance the overall charge.…”

Section: Introductionmentioning

confidence: 99%

CO adsorption on ionic Pt, Pd and Cu sites in Ce1-xMxO2 − δ (M = Pt2+, Pd2+, Cu2+)

et al. 2011

View full text Add to dashboard Cite

Noble metal ion substituted CeO 2 in the form of Ce 0.98 M 0.02 O 2−δ solid solution (where M = Pt, Pd, Cu) are the new generation catalysts with applications in three-way exhaust catalysis. While adsorption of CO on noble metals ions is well-known, adsorption of CO on noble metal ions has not been studied because creating exclusive ionic sites has been difficult. Using first-principles density functional theory (DFT) we have shown that CO gets adsorbed on the noble metal Pt 2+ , Pd 2+ , Cu 2+ ionic sites in the respective compounds, and the net energy of the overall system decreases. Adsorption of CO on metal ions is also confirmed by Fourier transform infrared spectroscopy (FTIR).

show abstract

Section: Introductionmentioning

confidence: 99%

CO adsorption on ionic Pt, Pd and Cu sites in Ce1-xMxO2 − δ (M = Pt2+, Pd2+, Cu2+)

et al. 2011

View full text Add to dashboard Cite

show abstract

“…For modelling mainly elementary-like kinetic models are used [1][2][3][4][5][6]. The formation of NO 2 in the reaction networks is assumed to be of Eley-Rideal type [1][2][3] or Langmuir-Hinshelwood type kinetic [4][5][6], which sometimes even distinguishes between different catalytic sites for the reactants [5,6]. In addition to those elementary-like kinetic models a few global kinetic models have been published [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Global kinetic models for the oxidation of NO on platinum under lean conditions

et al. 2007

View full text Add to dashboard Cite

Different global kinetics for the oxidation of NO on platinum are compared in this work. The general form of the equation for the reaction rate is. Furthermore steady-state and temperatureprogrammed experiments were performed. The best results of simulation coupled with parameter estimation were obtained using a = 0.28, b = 0.49, c = 0 and d = 1, along with an activation energy of 47.5 kJ mol )1 .

show abstract

“…Transient kinetic studies of the individual reactions over a single catalyst were carried out recently [1,[14][15][16]. Real engine exhaust gases, however, contain large amounts (10-14 vol%) of steam and carbon dioxide from the combustion processes taking place in the engine.…”

Section: Introductionmentioning

confidence: 99%