Erratum to “Isotope effects in the thermal desorption of water from Ru(001)” [Surf. Sci. 532–535 (2003) 113–119]

Denzler, Daniel N.; Wagner, Steven; Wolf, Matthias; Ertl, G.

doi:10.1016/j.susc.2003.08.022

Cited by 19 publications

(34 citation statements)

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“…7, respectively͒. On Ru͑0001͒, the first water layer must be left on the surface under our experimental condition because its desorption temperature lies at much higher temperature, i.e., ϳ180 K. [35][36][37]44,49,50,55,77 Also on CO / Ru͑0001͒, the relatively strongly interacting interfacial structure of D 2 O and CO is observed to remain on the surface, as the desorption of the "first water layer" from CO / Ru͑0001͒ occurs at the even higher temperature of ϳ190 K as observed our HAS signals at high coverage condition in Fig. 4.…”

Section: Morphological Changementioning

confidence: 99%

Deposition and crystallization studies of thin amorphous solid water films on Ru(0001) and on CO-precovered Ru(0001)

Kondo

Kato

Bonn

et al. 2007

The Journal of Chemical Physics

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The deposition and the isothermal crystallization kinetics of thin amorphous solid water ͑ASW͒ films on both Ru͑0001͒ and CO-precovered Ru͑0001͒ have been investigated in real time by simultaneously employing helium atom scattering, infrared reflection absorption spectroscopy, and isothermal temperature-programmed desorption. During ASW deposition, the interaction between water and the substrate depends critically on the amount of preadsorbed CO. However, the mechanism and kinetics of the crystallization of ϳ50 layers thick ASW film were found to be independent of the amount of preadsorbed CO. We demonstrate that crystallization occurs through random nucleation events in the bulk of the material, followed by homogeneous growth, for solid water on both substrates. The morphological change involving the formation of three-dimensional grains of crystalline ice results in the exposure of the water monolayer just above the substrate to the vacuum during the crystallization process on both substrates.

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Section: Morphological Changementioning

confidence: 99%

Deposition and crystallization studies of thin amorphous solid water films on Ru(0001) and on CO-precovered Ru(0001)

Kondo

Kato

Bonn

et al. 2007

The Journal of Chemical Physics

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“…3,7 Recently however, new results have highlighted deficiencies in our understanding of water-metal interactions, 8,9 and motivated renewed efforts in this research area. [10][11][12][13][14][15][16] Before presenting the results, it is useful to briefly review previous research on the bonding and structure of thin water films on Pt͑111͒. Water adsorbs molecularly on Pt͑111͒.…”

Section: Introductionmentioning

confidence: 99%

Layer-by-layer growth of thin amorphous solid water films on Pt(111) and Pd(111)

Kimmel

Petrik

Dohnálek

et al. 2006

The Journal of Chemical Physics

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The growth of amorphous solid water (ASW) films on Pt(111) is investigated using rare gas (e.g., Kr) physisorption. Temperature programmed desorption of Kr is sensitive to the structure of thin water films and can be used to assess the growth modes of these films. At all temperatures that are experimentally accessible (20-155 K), the first layer of water wets Pt(111). Over a wide temperature range (20-120 K), ASW films wet the substrate and grow approximately layer by layer for at least the first three layers. In contrast to the ASW films, crystalline ice films do not wet the water monolayer on Pt(111). Virtually identical results were obtained for ASW films on epitaxial Pd(111) films grown on Pt(111). The desorption rates of thin ASW and crystalline ice films suggest that the relative free energies of the films are responsible for the different growth modes. However, at low temperatures, surface relaxation or "transient mobility" is primarily responsible for the relative smoothness of the films. A simple model of the surface relaxation semiquantitatively accounts for the observations.

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“…It is suggested that D 2 O might partially dissociate to OD and D on Ru(0001). [22,25] However, the absent CsOD + signal (m/z = 151 amu/charge) in Figure 2 showed that the population of surface OD species was negligible, and the CsNaOD + signal could not originate from this species. The Cs(D 2 O) n + peaks in Figure 2 b were accompanied by shoulder peaks at masses lower by 1 amu, indicating that the surface was covered by a small amount of HDO formed possibly by H/ D exchange reactions between D 2 O and H 2 O impurities from the residual gas.…”

mentioning

confidence: 97%

“…The ice films were prepared to a thickness of about four bilayers (BLs), unless specified otherwise, and the thickness was deduced from RIS and temperature-programmed desorption (TPD) measurements. [18,22] Surface contamination by incident Cs + ions was proven to be negligible during the time of spectral acquisition. Whenever necessary, fresh films were prepared to eliminate the surface contamination effects.…”

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confidence: 99%

Direct Observation of Segregation of Sodium and Chloride Ions at an Ice Surface

et al. 2005

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Distribution of electrolyte ions near the surface of water or ice is a subject of interest in both fundamental chemistry and atmospheric chemistry of sea-salt aerosols and ice particles. The ion distribution at the surface of these particles may affect their reaction with ozone and organic species in the troposphere and the generation of reactive halogen species. [1,2] In early studies, the surface of aqueous solutions containing simple electrolytes such as alkali halides was thought to be deficient of ions, as inferred from the surface tension of solutions.[3] Molecular dynamics (MD) simulations have been widely employed since the 1990s to study the molecular details of solvation and segregation of atomic ions in water clusters.[4-8] MD calculations [6][7][8] predict that the large and polarizable anions are more readily available at the surface than the small nonpolarizable cations, in both water slab models [8] and clusters of finite sizes. [6,7,9] Photoelectron spectroscopic studies [10] of anionic water clusters in the gas phase support the surface residence of the larger halide anions by comparing the ionization energies with calculations. Further studies of the anionic clusters [X À (H 2 O) 1-5 , X= F, Cl, Br and I] using vibrational spectroscopy [11][12][13] indicate that the larger halides (Cl À , Br À and I À ) are solvated at the surface of water clusters. The spectra from clusters with the larger halides reveal a hydrogen-bonding network of water molecules, which supports surface solvation of anions, whereas the spectra from the F À -containing clusters lack such hydrogen-bonding features. [12b, 13] A limited number of experimental studies were performed to investigate the ion distribution at the surface of real aqueous solutions, and basically none at ice surfaces. Morgner and co-workers [14] measured He(I) photoelectron spectra from the surface of concentrated aqueous solutions of CsF and observed that the salt concentration is strongly depleted in the surface region. MD simulations from the same group [15] explain the phenomena by the circumstance that the ions near the surface mostly keep their first solvation shell intact. Using Xray photoelectron spectroscopy and scanning electron microscopy, Ghosal et al. [16] observed selective segregation of Br À ions to the surface of a NaCl crystal, which was slightly doped with Br À ions, under conditions of relative humidity, where the condensed water films caused partial dissolution of the crystal surface. Their results provide the first experimental evidence for preferential segregation of large halide anions to the surface of mixed alkali halides. More recently, vibrational sum frequency generation spectroscopy for sodium halide solutions [17] [a] J

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Erratum to “Isotope effects in the thermal desorption of water from Ru(001)” [Surf. Sci. 532–535 (2003) 113–119]

Cited by 19 publications

References 0 publications

Deposition and crystallization studies of thin amorphous solid water films on Ru(0001) and on CO-precovered Ru(0001)

Deposition and crystallization studies of thin amorphous solid water films on Ru(0001) and on CO-precovered Ru(0001)

Layer-by-layer growth of thin amorphous solid water films on Pt(111) and Pd(111)

Direct Observation of Segregation of Sodium and Chloride Ions at an Ice Surface

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