scholarly journals Reflection Absorption Infrared Spectroscopy and Temperature-Programmed Desorption Studies of the Adsorption and Desorption of Amorphous and Crystalline Water on a Graphite Surface

2005 ◽  
Vol 109 (35) ◽  
pp. 16836-16845 ◽  
Author(s):  
Amandeep S. Bolina ◽  
Angela J. Wolff ◽  
Wendy A. Brown
Keyword(s):  
Infrared Spectroscopy ◽  
Temperature Programmed Desorption ◽  
Graphite Surface ◽  
Adsorption And Desorption ◽  
Reflection Absorption Infrared Spectroscopy ◽  
Crystalline Water ◽  
Temperature Programmed

Adsorption and reaction pathways of a chiral probe molecule, S-glycidol on a Pd(111) surface

2015 ◽  
Vol 5 (2) ◽  
pp. 738-742 ◽  
Author(s):  
Mausumi Mahapatra ◽  
Wilfred T. Tysoe
Keyword(s):  
Infrared Spectroscopy ◽  
Reaction Pathway ◽  
Temperature Programmed Desorption ◽  
Reaction Pathways ◽  
Probe Molecule ◽  
Reflection Absorption Infrared Spectroscopy ◽  
Temperature Programmed

The chemistry of S-glycidol is studied on a Pd(111) surface using temperature-programmed desorption and reflection–absorption infrared spectroscopy to explore its suitability as a chiral probe molecule and to follow its reaction pathway.

KINETIC AND REACTIVE PROPERTIES OF ETHYLENE ON CLEAN AND HYDROGEN-COVERED Pd(111)

2003 ◽  
Vol 10 (06) ◽  
pp. 909-916 ◽  
Author(s):  
L. BURKHOLDER ◽  
D. STACCHIOLA ◽  
W. T. TYSOE
Keyword(s):  
Activation Energy ◽  
Infrared Spectroscopy ◽  
Temperature Programmed Desorption ◽  
Molecular Adsorption ◽  
Lateral Interactions ◽  
Ethylene Adsorption ◽  
Reflection Absorption Infrared Spectroscopy ◽  
Temperature Programmed ◽  
Ethane Formation ◽  
Reactive Properties

Several molecular adsorption states are identified following ethylene adsorption on clean and hydrogen-covered Pd(111) using temperature-programmed desorption (TPD) and reflection absorption infrared spectroscopy (RAIRS). Di-σ-bonded ethylene forms on clean Pd(111) desorbing with an activation energy of 80 kJ/mol at low coverages. The strong intermolecular lateral interactions considerably reduce the desorption temperature at higher coverages. Π-bonded ethylene is formed on hydrogen-covered Pd(111), where the proportion of π-bonded species increases with hydrogen coverage. This species converts to the more stable di-σ-bonded species on heating. Ethane formation is detected in TPD from hydrogen-precovered Pd(111), which is predominantly formed by reaction with π-bonded ethylene.

Propane and propane–water interactions: a study at cryogenic temperatures

2018 ◽  
Vol 20 (3) ◽  
pp. 1838-1847 ◽  
Author(s):  
Jyotirmoy Ghosh ◽  
Annapoorani Kobuvayur Hariharan ◽  
Radha Gobinda Bhuin ◽  
Rabin Rajan J. Methikkalam ◽  
Thalappil Pradeep
Keyword(s):  
Mass Spectrometry ◽  
Phase Transition ◽  
Infrared Spectroscopy ◽  
Ultrahigh Vacuum ◽  
Temperature Programmed Desorption ◽  
Water Mixture ◽  
Cryogenic Temperatures ◽  
Desorption Mass Spectrometry ◽  
Reflection Absorption Infrared Spectroscopy ◽  
Temperature Programmed

The phase transition of solid propane and a propane–water mixture under ultrahigh vacuum has been investigated using reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption mass spectrometry (TPD-MS).

scholarly journals Impact of oxygen chemistry on model interstellar grain surfaces

2018 ◽  
Vol 20 (8) ◽  
pp. 5368-5376 ◽  
Author(s):  
A. Rosu-Finsen ◽  
M. R. S. McCoustra
Keyword(s):  
Infrared Spectroscopy ◽  
Molecular Oxygen ◽  
Amorphous Silica ◽  
Amorphous Solid ◽  
Temperature Programmed Desorption ◽  
Crystalline Solid ◽  
Amorphous Solid Water ◽  
Reflection Absorption Infrared Spectroscopy ◽  
Solid Water ◽  
Temperature Programmed

Temperature-programmed desorption (TPD) and reflection–absorption infrared spectroscopy (RAIRS) are used to probe the effect of atomic and molecular oxygen (O and O2) beams on amorphous silica (aSiO2) and water (H2O) surfaces (porous-amorphous solid water; p-ASW, compact amorphous solid water; c-ASW, and crystalline solid water; CSW).

Adsorption of nitrogen oxide on a V2O5/Al2O3 catalyst

1985 ◽  
Vol 50 (6) ◽  
pp. 1259-1267 ◽  
Author(s):  
Zdeněk Sobalík ◽  
Vladimír Pour ◽  
Ludmila A. Sokolova ◽  
Olga V. Nevskaya ◽  
Nina M. Popova
Keyword(s):  
Infrared Spectroscopy ◽  
Nitrogen Oxide ◽  
Elevated Temperatures ◽  
Volume Ratio ◽  
Temperature Programmed Desorption ◽  
Adsorption And Desorption ◽  
Adsorption Of Nitrogen ◽  
Order Of Magnitude ◽  
Temperature Programmed ◽  
Al2o3 Catalyst

The adsorption and desorption of nitrogen oxide on oxidized and reduced V2O5/Al2O3 catalysts (14.7% (m/m) V2O5) were studied by gravimetry, infrared spectroscopy, and temperature programmed desorption measurements. On the reduced catalyst, NO is adsorbed giving rise to mono- and dinitrosyls which exhibit infrared bands at 1 690, 1 760, 1 820, and 1 895 cm-1. A band also appears at 1 220 cm-1 corresponding to nitrite structures. The ratio between the nitrosyl and nitrite structures is approximately 4 : 1. Desorption at elevated temperatures is associated with the evolution of NO and N2O in a volume ratio of 10 : 1. On the oxidized catalyst the adsorption occurs to an extent at least two order of magnitude lower and no nitrosyls are formed.

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