A FT IR study of a transitory product in the gas-phase ozone-ethylene reaction

1981 ◽  
Vol 85 (8) ◽  
pp. 1024-1027 ◽  
Author(s):  
H. Niki ◽  
P. D. Maker ◽  
C. M. Savage ◽  
L. P. Breitenbach
Keyword(s):  
Gas Phase ◽  
Ft Ir ◽  
Ir Study

The role of platinum on the NOx storage and desorption behavior of ceria: An online FT-IR study combined with in situ Raman and UV-Vis spectroscopy

2020 ◽  
Author(s):  
Anastasia Filtschew ◽  
Pablo Beato ◽  
Søren Birk Rasmussen ◽  
Christian Hess
Keyword(s):  
Gas Phase ◽  
Phase Analysis ◽  
Room Temperature ◽  
Storage Mechanism ◽  
In Situ Raman ◽  
Vis Spectroscopy ◽  
Ft Ir ◽  
Ir Study

The role of platinum on the room temperature NOx storage mechanism and the NOx desorption behavior of ceria was investigated by combining online FT-IR gas-phase analysis with in situ Raman...

FT-IR Study of the Gas-Phase Autoxidation of Trimethylgermane

1994 ◽  
Vol 13 (5) ◽  
pp. 1569-1574 ◽  
Author(s):  
Philip G. Harrison ◽  
David M. Podesta
Keyword(s):  
Gas Phase ◽  
Ft Ir ◽  
Ir Study

FT-IR Study of the Gas-Phase Thermolysis of Triethylgermane

1995 ◽  
Vol 14 (7) ◽  
pp. 3507-3515 ◽  
Author(s):  
Philip G. Harrison ◽  
Ashley C. Torr
Keyword(s):  
Gas Phase ◽  
Ft Ir ◽  
Ir Study

In situ FT-IR Study on the Direct Gas Phase Epoxidation of Propylene over Ag-MoO3 Catalyst

2006 ◽  
Vol 22 (7) ◽  
pp. 809-814
Author(s):  
G JIN ◽  
Y GUO ◽  
X LIU ◽  
W YAO ◽  
Y GUO ◽  
...  
Keyword(s):  
Gas Phase ◽  
Epoxidation Of Propylene ◽  
Ft Ir ◽  
Ir Study

Torsional isomers in methylated aminoethanols - A jet-FT-IR study

2004 ◽  
Vol 82 (6) ◽  
pp. 1006-1012 ◽  
Author(s):  
Yaqian Liu ◽  
Corey A Rice ◽  
Martin A Suhm
Keyword(s):  
Hydrogen Bond ◽  
Gas Phase ◽  
Quantum Chemical ◽  
Supersonic Jet ◽  
Energy Difference ◽  
Ft Ir ◽  
Ir Study ◽  
Intramolecular Hydrogen ◽  
Quantum Chemical Data ◽  
Torsional Isomers

Jet-FT-IR spectra of aminoethanol (AE), N-methylaminoethanol (MAE), and N,N-dimethylaminoethanol (DMAE) are presented and compared to gas-phase and matrix isolation IR, microwave, and quantum chemical data. The intramolecular O-H···N hydrogen bond gives rise to characteristically shifted O-H stretching bands and torsional difference bands in the monomer spectra. It stabilizes one out of 14 diastereomeric monomer conformations of AE and DMAE and two out of 27 diastereomeric MAE conformations. The latter two correspond to torsional or N-inversional isomers, the interconversion of which is hindered by the intramolecular hydrogen bond. Their energy difference is found to be <1.2 kJ/mol. The intermolecular aggregation patterns of the three aminoethanols are quite distinct and non-monotonic, as suggested by their O-H stretching fingerprints.Key words: aminoethanol, IR spectroscopy, conformation, hydrogen bond, supersonic jet.

FT-IR study of the gas phase thermolysis of trimethylsilyl acetate

1997 ◽  
Vol 538 (1-2) ◽  
pp. 19-29 ◽  
Author(s):  
Philip G. Harrison ◽  
Ashley Torr
Keyword(s):  
Gas Phase ◽  
Ft Ir ◽  
Ir Study

NOHSO4/HF – A Novel Etching System for Crystalline Silicon

2007 ◽  
Vol 62 (11) ◽  
pp. 1411-1421 ◽  
Author(s):  
Sebastian Patzig ◽  
Gerhard Roewer ◽  
Edwin Kroke ◽  
Ingo över
Keyword(s):  
Gas Phase ◽  
Chemical Etching ◽  
Silicon Surface ◽  
Crystalline Silicon ◽  
Etching Solution ◽  
Wide Range ◽  
Ft Ir ◽  
Wet Chemical ◽  
Wet Chemical Etching ◽  
Etching System

Solutions consisting of HF - NOHSO4 - H2SO4 exhibit a strong reactivity towards crystalline silicon which is controlled by the concentrations of the reactive species HF and NO+. Selective isotropic and anisotropic wet chemical etching with these solutions allows to generate a wide range of silicon surface morphology patterns. Traces of Ag+ ions stimulate the reactivity and lead to the formation of planarized (polished) silicon surfaces. Analyses of the silicon surface, the etching solution and the gas phase were performed with scanning electron microscopy (SEM), DR/FT-IR (diffusive reflection Fourier transform infra-red), FT-IR, Raman and NMR spectroscopy, respectively. It was found that the resulting silicon surface is hydrogen-terminated. The gas phase contains predominantly SiF4, NO and N2O. Furthermore, NH4+ is produced in solution. The study has confirmed the crucial role of nitrosyl ions for isotropic wet chemical etching processes. The novel etching system is proposed as an effective new way for selective surface texturing of multi- and monocrystalline silicon. A high etching bath service lifetime, besides a low contamination of the etching solution with reaction products, provides ecological and economical advantages for the semiconductor and solar industry.

An FT-IR Study on Packing Defects in Mixed β-Aggregates of Poly(l-glutamic acid) and Poly(d-glutamic acid): A High-Pressure Rescue from a Kinetic Trap

2012 ◽  
Vol 116 (17) ◽  
pp. 5172-5178 ◽  
Author(s):  
Yudai Yamaoki ◽  
Hiroshi Imamura ◽  
Aleksandra Fulara ◽  
Sławomir Wójcik ◽  
Łukasz Bożycki ◽  
...  
Keyword(s):  
High Pressure ◽  
Glutamic Acid ◽  
Kinetic Trap ◽  
Packing Defects ◽  
Ft Ir ◽  
Ir Study
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