The adsorption and decomposition of methanol on the Rh(100) surface

Structure and reaction pathways of methyl lactate on Pd(111)

“…The main indicator is the appearance of increased intensity at 918 cm À1 , due to the C-O stretching mode, shifted from $922 cm À1 for the multilayer and detected at $925 cm À1 in matrix-isolated methyl lactate. The C-O stretching frequency shifts of methanol from 1033 cm À1 in the gas phase to 1005 cm À1 on Pd(1 1 1) [44], Rh(1 1 1) [45] and Ru(0 0 1) [46], 985 cm À1 on Pd(1 0 0) [47], and 1010 cm À1 on Pd(1 1 0) [48], are consistent with the shift observed here. In addition, the intensification of this initially relative weak mode is consistent with bonding to the metal surface.…”

Theoretical study on the effective methanol decomposition on Pd(111) surface facilitated in alkaline medium

“…It has also been shown that the decomposition reaction often occurs at low temperatures of around 200 K on the surface of Group VIII metals. For example, studies by means of many experimental techniques such as high resolution electron energy loss spectroscopy (HREELS), temperature programmed desorption and isotopic labeling have shown that methanol decomposition takes place by the O-H bond breaking on Ni(1 1 1) [11,12], Ni(1 1 0) [13,14], Pt(1 1 1) [15], Pd(1 0 0) [18,19], Ru(0 0 1) [20], Fe(1 0 0) [21], Rh(1 1 1) [22,23], and Rh(1 0 0) [24]. A study by static secondary-ion mass spectrometry (SSIMS) on methanol decomposition on Pd(1 1 1) single crystal surface has observed PdOCH þ 3 species which give evidence for the presence of the CH 3 O species [27].…”

“…The adsorption of methanol on metal surfaces has been extensively studied experimentally [4,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. The dissociative chemisorption of methanol on metal surfaces by the O-H bond breaking to produce CH 3 O intermediates is commonly accepted as a general phenomenon [26].…”

An XPS Study of the Interaction of Ultrathin Cu Films with Pd(111)

“…The experiments were carried out in a conventional ultrahigh vacuum (UHV) chamber, described in detail previously, 29 with a base pressure of ∼5 × 10 -10 Torr. The system consists of two interconnected chambers, one for sample treatment and temperature-programmed desorption (TPD), and the other for electron spectroscopy using a Kratos XSA M800 hemispherical electron energy analyzer and a twin-anode X-ray gun (unmono-chromatized Mg KR radiation was used for this study).…”