Molecular beam studies of ethanol oxidation on Pd(110)

Bowker, Michael; Holroyd, Richard; Sharpe, Ryan; Corneille, Jason S.; Francis, S.M.; Goodman, D. W.

doi:10.1016/s0039-6028(96)00959-4

Cited by 56 publications

(45 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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.…”

Section: Adsorption and Decomposition On The Clean Surfacecontrasting

confidence: 67%

See 1 more Smart Citation

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

et al. 2007

View full text Add to dashboard Cite

Ethanol (C(2)H(5)OH) adsorption, decomposition and oxidation is studied on Ir(111) using high-energy resolution, fast XPS and temperature-programmed desorption. During heating of an adsorbed ethanol layer a part of the C(2)H(5)OH(ad) desorbs molecularly, and another part remains on the surface and decomposes around 200 K; these two decomposition pathways are identified, as via acetyl (H(3)C--C=O) and via CO(ad)+CH(3ad), respectively. Acetyl and CH(3ad) decompose around 300 K into CH(ad) (and CO(ad)). CH(ad) decomposes forming C(x) and H(2) around 520 K. In the presence of O(ad) an acetate intermediate is formed around 180 K, as well as a small amount of CH(3ad) and CO(ad). Acetate decomposes between 400-480 K into CO(2), H(2)(/H(2)O) and CH(ad).

show abstract

Section: Adsorption and Decomposition On The Clean Surfacecontrasting

confidence: 67%

“…[1][2][3][4][5][6][7][8][9][10][11][12] The nature of the metal determines whether CÀC or CÀO bond breaking occurs first. Different reaction intermediates have been identified, including C 2 H 5 O ad , [9] acetaldehyde [9] and acetyl.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2007

View full text Add to dashboard Cite

show abstract

“…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.…”

Section: Introductionmentioning

confidence: 99%

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

2009

View full text Add to dashboard Cite

The adsorption and decomposition of ethylene glycol on Rh(100) have been studied with temperature-programmed reaction spectroscopy and reflection absorption infrared spectroscopy. Ethylene glycol adsorbs onto the surface via the hydroxyl groups. At 150 K, both hydroxyl bonds are broken, forming an ethylenedioxy intermediate. At high coverage, a portion of the ethylene glycol molecules dehydrogenate only one hydroxyl bond, forming a monodentate species. These intermediates decompose further, with complete dehydrogenation and simultaneous C--C bond breaking occurring at around 290 K. Hydrogen and carbon monoxide are formed, which desorb at 290 and 500 K, respectively.

show abstract

“…Therefore, properties of the Pd based model heterogeneous catalyst systems for gas/solid interfaces have been investigated extensively in our laboratories . Particularly, Pd single crystal surfaces [3], [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Pd/X bimetallic systems (X= Mo [22][23][24][25], Ru [26][27][28][29], Cu [28;30], Ta [25;29;31], W [25;29;32;33], Re [25-27;29] ), Pd/X/Y trimetallic systems (X/Y= Cu/Mo [34], Au/Mo [34]), Pd clusters deposited on SiO 2 [10;35-41], Al 2 O 3 [42][43][44][45][46][47], TiO 2 [48][49][50][51] and MgO [49;51] have been examined using various surface spectroscopic tools.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Catalytic Conversion of Automobile Exhaust Emissions Using Model Catalysts: CO + NO Reaction on Pd(111)

Özensoy

Heß

Goodman

2004

Topics in Catalysis

View full text Add to dashboard Cite

The CO + NO reaction is one of the profoundly important reactions that take place on Pd-based industrial three-way catalysts (TWC). In this review, we discuss results from polarization modulation infrared reflection absorption spectroscopy (PM-IRAS) and conventional IRAS experiments on CO adsorption, NO adsorption and the CO + NO reaction on a Pd(111) model catalyst surface within a wide range of pressures (10 -6 -450 Torr) and temperatures (80 -650 K). It will be shown that these studies allow for a detailed understanding of the adsorption behavior of these species as well as the nature of the products that are formed during their reaction under realistic catalytic conditions. CO adsorption experiments on Pd(111) at elevated pressures reveal that CO overlayers exhibit similar adsorption structures as found for ultrahigh vacuum (UHV) conditions. On the other hand, in the case of the CO + NO reaction on Pd(111), the pressure dependent formation of isocyanate was observed. The importance of this observation and its effects on the improvement of the catalytic NOx abatement is discussed. The kinetics of the CO + NO reaction on Pd(111) were also investigated and the factors affecting its selectivity are addressed.

show abstract

Molecular beam studies of ethanol oxidation on Pd(110)

Cited by 56 publications

References 67 publications

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

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

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

Understanding the Catalytic Conversion of Automobile Exhaust Emissions Using Model Catalysts: CO + NO Reaction on Pd(111)

Contact Info

Product

Resources

About