Infrared reflection absorption study of carbon monoxide adsorption on Cu(1 0 0)–c(2 × 2)–Pd surfaces formed by palladium vacuum-depositions at various temperatures

Carbon Monoxide Adsorption on Cobalt-Deposited Platinum Single Crystal Surfaces Investigated by IR Reflection-Absorption and Low-Energy Electron Diffraction

“…Well-defined, ordered bimetallic surfaces constructed by vacuum deposition of a metal on different metal single crystal substrates are typical surface temperate for studies of physical, chemical and electronic properties of alloy surfaces [1][2][3][4][5][6][7]: molecular beam epitaxy (MBE) and ultrahigh-vacuum (UHV) techniques make it possible to create the well-defined bimetallic surfaces. Atomic arrangements and compositions of the bimetallic alloy surfaces should seriously affect catalytic properties of the surfaces; this phenomenon has been explained in terms of "ensemble" and "ligand" effects [8].…”

“…Actually, past studies showed [1,2,[18][19][20] that CO is useful as a probe of surface lattice structures and electronic properties not only for single metals but also for bimetallic alloys. We have reported IRRAS results for CO adsorptions on several bimetallic surfaces having periodic atomic structures [5][6][7]21]. More recently, the MBE-fabricated outermost structures for platinum-based bimetallic surfaces, such as Fe/Pt(111) [22,23], Fe/Pt(100)-hex [24], Ni/Pt(111) [25] and Pd/Pt(111) [26] are investigated by using IRRAS, reflection high-energy electron diffraction (RHEED), and low-energy electron diffraction (LEED).…”

Infrared Reflection Absorption Study for Carbon Monoxide Adsorption on Chromium Deposited Cu(100) Surfaces

“…[20][21][22][23][24][25][26] Indeed, the authors have previously reported IRRAS spectra for carbon monoxide (CO) adsorption on several bimetallic surfaces having periodic atomic structures. [27][28][29][30][31] The results indicate that CO is useful as a probe for exploration of surface lattice structures of bimetallic alloys. Therefore, IRRAS measurements of CO adsorption on well-defined bimetallic surfaces are expected to offer a deeper insight into surface molecular behavior, which depends strongly upon the bimetallic alloys' outermost surfaces.…”

“…[17][18][19][27][28][29][30][31] Using repeated Ar þ sputtering and annealing, Cu(100) (<1 miscut) crystal surfaces were cleaned under ultra-high vacuum (UHV) conditions. The cleanliness and crystallographic order were verified using Auger electron spectroscopy (AES), reflection high-energy electron diffraction (RHEED), and low-energy electron diffraction (LEED).…”

IRRAS and TPD Investigations of Carbon Monoxide Adsorption on MBE grown Fe on Pt(100)

“…Furthermore, such bimetallic * This paper was presented at the 14th International Conference on Solid Films and Surfaces (ICSFS-14), Trinity College Dublin, Ireland, 29 June -4 July, 2008. † Corresponding author: wadayamt@material.tohoku.ac.jp alloy surfaces serve as an atomic template for examining surface chemical properties, particularly in the field of catalysis [8][9][10][11][12][13][14]. Atomic arrangements of the single crystal alloy of Pt 80 Fe 20 (111) surface have been studied intensively.…”