Self-acceleration in the decomposition of acetic acid on Rh{111}: a combined TPD and laser induced desorption study

The effects of ageing a bimetallic catalyst under industrial conditions: a study of fresh and used Pd-Au-K/silica vinyl acetate synthesis catalysts

“…This CO 2 spike, under the conditions employed, had a full width at half maximum of just 3.5 • C. Such narrow peaks are characteristic of an auto-catalytic or "surface explosion" process. Similar auto-catalytic processes have been observed for decomposition of high coverage acetate layers on rhodium and palladium surfaces under UHV conditions [20][21][22][23]. A similar feature was also recently observed on Rh/Al 2 O 3 at atmospheric pressure [24].…”

“…Similar auto-catalytic processes have been observed for decomposition of high coverage acetate layers on rhodium and palladium surfaces under UHV conditions [20][21][22][23][24]. Acetate species on the palladium surface, in certain geometrical arrangements, are stabilised such that they strerically hinder each others decomposition by blocking the vacant active sites necessary for this process to occur.…”

Thermal Evolution of Acetic Acid Nanodeposits over 123−180 K on Noncrystalline Ice and Polycrystalline Ice Studied by FTIR Reflection−Absorption Spectroscopy: Hydrogen-bonding Interactions in Acetic Acid and between Acetic Acid and Ice

“…With the exception of the CdO stretching feature at 1695 cm -1 (corresponding to the acetic acid H-bonded to ice), the observed spectral similarities for the two substrates therefore indicate that the adsorption states of acetic acid on NCI and PCI could be considered as molecular and physisorbed states as those found for Ru(0001) at 100 K. 24 The difference between metal and ice surfaces is mainly attributed to the presence of the OH dangling bond on the ice surface. The adsorption of acetic acid on other metal surfaces, including Pt(111), 37 Cu(100), 42 Rh(111), 43 and Pd(110), 44 has also been reported. Like the adsorption of acetic acid on Ru(0001) above 100 K, evidence of dehydrogenation and formation of acetate has been obtained for these metal surfaces at different temperatures and coverage.…”

Promoting Mechanism of Potassium in the Reforming of Ethanol on Pt/Al2O3 Catalyst

“…It was found in the study of acetic acid adsorption on Rh (111) surface that K additives lowered the stability of acetate species bonded on the metal surface [4]. So we prepared Pt/Al 2 O 3 samples promoted with potassium.…”