Divergent pathways of acetaldehyde and ethanol decarbonylation on the Rh(111) surface

Ethanol Adsorption, Decomposition and Oxidation on Ir(111): A High Resolution XPS Study

“…The CH 3ad peak is not clearly resolved as a separate peak, and we suggest that the peak at 284.1 eV actually contains a contribution from the CH 3ad signal as well. In our desorption studies we did not find an indication for hydrogenation of CH 3ad forming gaseous methane (CH 4 ), unlike what was [2,4,7,6,8,11,12] where methane desorption was observed between 250-270 K.…”

“…The formation of acetaldehyde species has been reported on PtA C H T U N G T R E N N U N G (111), PdA C H T U N G T R E N N U N G (111) and RhA C H T U N G T R E N N U N G (111), [4,6,8,9,13] but on PtA C H T U N G T R E N N U N G (111) and PdA C H T U N G T R E N N U N G (111) these species quickly react to acetyl species. On PdA C H T U N G T R E N N U N G (111) acetyl species have been identified between 215-340 K using EELS.…”

Chemistry of Ethylene Glycol on a Rh(100) Single‐Crystal Surface

“…The n(OH)/nA C H T U N G T R E N N U N G (CH 2 ) intensity shows a strong increase at 0.12 ML. On RhA C H T U N G T R E N N U N G (111), the hydroxyl groups in ethanol and ethylene glycol decompose around 200 K, [18,23] whereas on a more open and reactive surface such as RhA C H T U N G T R E N N U N G (100), the hydroxyl groups decom- The adsorption and decomposition of ethylene glycol on Rh-A C H T U N G T R E N N U N G (100) have been studied with temperature-programmed reaction spectroscopy and reflection absorption infrared spectroscopy. Ethylene glycol adsorbs onto the surface via the hydroxyl groups.…”

“…Several surface science studies on the reaction and decomposition of the related single alcohol ethanol on group VIII metals are available, for example Ni, [2][3][4][5] Pd, [6][7][8][9] Ir, [10] Pt, [4,[11][12][13][14][15][16][17] and Rh, [18][19][20][21] but research on ethylene glycol is scarce (e.g., Ni, [22] Pt, [4,16,17] and Rh [23] ). The surface chemistry of ethanol provides insight into what may be expected for ethylene glycol.…”

Effect of alcohol concentration and electrode composition on the ethanol electrochemical oxidation

“…The reasons to this higher efficiency to remove protons may be related with the interaction of the ethanol molecule with the metallic surface. It is already known from UHV experiments that ethanol adsorbs on rhodium forming a cyclic adsorbate, thus leading to a very stressed C-C bond [12]. Although there are no data for platinum-rhodium bimetallic surfaces it is likely that a similar kind of adsorbed intermediate must be present also on this kind of surface as well.…”