Binding energy of platinum

Platinum 4f7/2 and 4f6/2 Binding Energies of Platinum-Blues and Related Complexes... 

Effect of Sulfur on the Hydrogen Adsorption Capacity and the Hydrogen Binding Energy of Platinum- and Iridium-Supported Catalysts... 

XPS analysis of silica-supported Sn-Pt catalysts shows that the binding energy of platinum shifted towards lower values of approximately 1 eV with respect to... 

Such electronic transfer induced by sulfur adsorption was also pointed out by using cinnamic acid as a probe molecule (48). The UV-visible reflexion spectra of adsorbed cinnamic acid on nonpoisoned and partly poisoned platinum catalysts shows that adsorption on pure platinum induces a shift of the peaks toward the higher wavelengths and an appearance of fine structure. Sulfurization of platinum induces a further enhancement of higher wavelength peaks. Binding energy of cinnamic acid is thus increased by sulfur adsorption on Pt catalysts. 

In the X-ray photoelectron spectroscopy studies on the platinum-rhenium catalyst, it was observed that the binding energies of the platinum 4/7/2 and rhenium 4dm core electrons were higher than they were in the catalysts containing platinum or rhenium alone. 

Related compounds of the type [Pt(SMe)(NH3)Cl]2 can be similarly synthesized by treatment of methylisothiourea with cis-[Pt(NH3)2Cl2], or directly via reaction between methanethiol and K[Pt(NH)3Cl3]. The C12p3/2 binding energies of cis- and trans-[Pt(SEt2)2Cl2] have been measured as part of an extensive study of chloro-platinum(ii) complexes. ... 

H/D exchange in TpPt(H)2(CH3) (Tp=hydrido-tris(pyrazolyl)borate) was investigated with the DFT method [24], where various functionals were used. The reaction takes place through the reductive elimination of methane, methane rotation, and the oxidative addition. Important in this reaction is that the platinum(II) methane complex is very stable the binding energy of methane with the Pt(II) center was evaluated to be 6.0 kcal/mol and the activation barrier for methane loss was 11.9 kcal/mol, where mPWlk functional was... 

Figure 7.4 (A) Polarization curves for O2 reduction on platinum monolayers (PIml) on Ru(OOOI), lr(111), Rh(111), Au(111), and Pd(111) surfaces in 02-saturated 0.1 M HCIO4 solution on a disk electrode. The rotation rate is 1600 rpm, and the sweep rate is 20 mV s (50 mV s for R(111)) y= current density, RHE = reversible hydrogen electrode. (Reprinted with permission from Ref. 6) (B) kinetic currents (yi< square symbols) at 0.8 V for O2 reduction on the platinum monolayers supported on different single-crystal surfaces in 02-saturated 0.1 M HCIO4 solution and calculated binding energies of atomic oxygen (BEO filled circles) as functions of calculated d-band center (fd cp relative to the Fermi level) of the respective clean Pt monolayers. Labels (1) PtMi/Ru(0001),(2) RMi/lrOU). (3) PtMi/Rh(111),(4) PtMi/Au(111), (5) Pt(111), (6) PtML/Pd(111). Reprinted with permission from Ref. 22.

Fig. 4 Kinetic currents (Jk square symbols) at 0.8 V for O2 reduction on the platinum monolayers supported on different single-crystal surfaces in a 0.1 M HCIO4 solution and calculated binding energies of atomic oxygen (BEq filled circles) as functions of calculated d-band center (Cd-ep) relative to the Fermi level of the respective clean platinum monolayersLabels. 1 PIml/ Ru(0001), 2 PtML/Ir(l 11), 3...

Figure 5.6. Kinetic currents (/k square symbols) at 0.8 V for O2 reduction on the platinum monolayer in a 0.1 M HCIO4 solution, and the activation energies for O2 dissociation (filled circles) and for OH formation (open circles) on PtML/Au(lll), Pt(lll), PtML/Pd(lll), and PtML/Ir(l 11), as functions of the calculated binding energy of atomic oxygen (BEo). Labels 1. PtML/Ru(0001), 2. PtMi/Ir(lll), 3. PtML/Rb(lll), 4. PtML/Au(lll), 5. Pt(lll), 6. PtML/Pd(l 11). (Reprinted with permission from Jurdiang Zhang, Miomir B. Vukmirovic, Ye Xu, Manos Mavrikakis, and Radoslav R. Adzic, Ang Chem Int Ed 44 (2005) 2132. 2005 Wiley-VCH Verlag GmbH Co.)...

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