Highly Proton-Ordered Water Structures on Oxygen Precovered Ru{0001}

被引：14

作者：

Avidor, N. ^{[1
]}

Hedgeland, H. ^{[2
]}

Held, G. ^{[3
]}

Jardine, A. P. ^{[2
]}

Allison, W. ^{[2
]}

Ellis, J. ^{[2
]}

Kravchuk, T. ^{[1
]}

Alexandrowicz, G. ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Shulich Fac Chem, IL-32000 Haifa, Israel

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[3] Univ Reading, Dept Chem, Whiteknights RG6 6AD, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2011年 / 115卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

HELIUM ATOM SCATTERING; SOLID-SURFACES; WETTING LAYER; LEED-IV; ADSORPTION; ICE; DISSOCIATION; COADSORPTION; COVERAGE;

D O I：

10.1021/jp200221b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present helium scattering measurements of a water ad-layer grown on a O(2 x 1)/Ru(0001) surface. The adsorbed water layer results in a well ordered helium diffraction pattern with systematic extinctions of diffraction spots due to glide line symmetries. The data reflects a well-defined surface structure that maintains proton order even at surprisingly high temperatures of 140 K. The diffraction data we measure is consistent with a structure recently derived from STM measurements performed at 6 K. Comparison with recent DFT calculation is in partial agreement, suggesting that these calculations might be underestimating the contribution of relative water molecule orientations to the binding energy.

引用

页码：7205 / 7209

页数：5

共 43 条

[1] Helium spin-echo spectroscopy: studying surface dynamics with ultra-high-energy resolution [J].

Alexandrowicz, G. ;

Jardine, A. P. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (30)

[2] Water dissociation on Ru(001): An activated process [J].

Andersson, K ;

Nikitin, A ;

Pettersson, LGM ;

Nilsson, A ;

Ogasawara, H .

PHYSICAL REVIEW LETTERS, 2004, 93 (19) :196101-1

[3] A HELIUM ATOM SCATTERING STUDY OF WATER-ADSORPTION ON THE NACL(100) SINGLE-CRYSTAL SURFACE [J].

BRUCH, LW ;

GLEBOV, A ;

TOENNIES, JP ;

WEISS, H .

JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (12) :5109-5120

[4] Decisive role of the energetics of dissociation products in the adsorption of water on O/Ru(0001) [J].

Cabrera-Sanfelix, Pepa ;

Arnau, Andres ;

Mugarza, Aitor ;

Shimizu, Tomoko K. ;

Salmeron, Miquel ;

Sanchez-Portal, Daniel .

PHYSICAL REVIEW B, 2008, 78 (15)

[5] Intact and dissociative adsorption of water on Ru(0001) [J].

Clay, C ;

Haq, S ;

Hodgson, A .

CHEMICAL PHYSICS LETTERS, 2004, 388 (1-3) :89-93

[6] THE ADSORPTION OF WATER ON CLEAN AND OXYGEN-DOSED RU(001) [J].

DOERING, DL ;

MADEY, TE .

SURFACE SCIENCE, 1982, 123 (2-3) :305-337

[7] Stability of water monolayers on Ru(0001): Thermal and electronically induced dissociation [J].

Faradzhev, NS ;

Kostov, KL ;

Feulner, P ;

Madey, TE ;

Menzel, D .

CHEMICAL PHYSICS LETTERS, 2005, 415 (1-3) :165-171

[8] Atomic beam diffraction from solid surfaces [J].

Farías, D ;

Rieder, KH .

REPORTS ON PROGRESS IN PHYSICS, 1998, 61 (12) :1575-1664

[9] Partial dissociation of water on Ru(0001) [J].

Feibelman, PJ .

SCIENCE, 2002, 295 (5552) :99-102

[10] A wetting layer breaks the ice rules [J].

Feibelman, PJ .

CHEMICAL PHYSICS LETTERS, 2005, 410 (1-3) :120-124

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