Gas phase analysis of CO interactions with solid surfaces at high temperatures

2004 ◽  
Vol 233 (1-4) ◽  
pp. 392-401 ◽  
Author(s):  
Clara Anghel ◽  
Erik Hörnlund ◽  
Gunnar Hultquist ◽  
Magnus Limbäck
Keyword(s):  
Gas Phase ◽  
Phase Analysis ◽  
High Temperatures ◽  
Solid Surfaces

Chemisorption of ethylene on nickel surfaces with preadsorbed oxygen

1981 ◽  
Vol 46 (2) ◽  
pp. 340-353
Author(s):  
Pavel Zachař ◽  
Zdeněk Bastl ◽  
Jakub Adámek
Keyword(s):  
Gas Phase ◽  
Phase Analysis ◽  
Oxygen Concentration ◽  
Electrical Resistance ◽  
High Vacuum ◽  
Volumetric Method ◽  
Surface Oxygen ◽  
Oxygen Chemisorption ◽  
Thin Polycrystalline ◽  
Total Adsorption

Chemisorption of ethylene was studied on thin polycrystalline layers of nickel prepared by metal deposition in high vacuum and modified by preadsorbed oxygen. The volumetric method combined with the gas-phase analysis and the measurement of the electrical resistance changes of these layers were used. Already small amounts of preadsorbed oxygen of the order of 10-2 of the monolayer affect rather substantially the extent of ethylene chemisorption. The extent of the initial irreversible chemisorption and also the total adsorption of ethylene as a function of the amount of preadsorbed oxygen have a maximum at the surface oxygen concentration of 3 . 1013 molecule cm-2. The adsorption accompanied by the extensive dissociation of ethylene C-H bonds proceeds predominantly on nickel atoms with lower coordination (atoms on the microcrystal edges, corner atoms, etc.), where also oxygen chemisorption proceeds preferentially.

Four-wave mixing of picosecond pulses in hollow fibers: expanding the possibilities of gas-phase analysis

2001 ◽  
Vol 72 (5) ◽  
pp. 575-582 ◽  
Author(s):  
A.B. Fedotov ◽  
F. Giammanco ◽  
A.N. Naumov ◽  
P. Marsili ◽  
A. Ruffini ◽  
...  
Keyword(s):  
Gas Phase ◽  
Phase Analysis ◽  
Four Wave Mixing ◽  
Hollow Fibers ◽  
Wave Mixing ◽  
Picosecond Pulses

Active site separation of photocatalytic steam reforming of methane using Gas‐Phase Photoelectrochemical system

2021 ◽  
Author(s):  
Tomoki Kujirai ◽  
Akira Yamaguchi ◽  
Takeshi Fujita ◽  
Hideki Abe ◽  
Masahiro Miyauchi
Keyword(s):  
Carbon Dioxide ◽  
Gas Phase ◽  
High Temperatures ◽  
Steam Reforming ◽  
Active Site ◽  
Side Reaction ◽  
System P ◽  
Steam Reforming Of Methane

Steam reforming of methane (SRM) requires high temperatures to be promoted, and the production of carbon dioxide from the side reaction has also become a problem. In this study, we...

Etching Reactions at Solid Surfaces

1984 ◽  
Vol 38 ◽  
Author(s):  
Harold F. Winters ◽  
J. W. Coburn
Keyword(s):  
Experimental Data ◽  
Conceptual Framework ◽  
Gas Phase ◽  
Ion Bombardment ◽  
Solid Surfaces ◽  
Plasma Environment

AbstractAn understanding of etching reactions in a plasma environment requires a knowledge of: (1) the types of gas phase particles which react at the surface, (2) the etch products formed, and (3) the processes which lead from reactants to products. Experimental data relavant to these topics are reviewed in this paper. A conceptual framework for understanding the etching reaction is reviewed and it is shown that the experimental data presently available is consistent with this framework. The influence of ion bombardment on etching reactions is extensively discussed.

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...

Hierarchical structural silica-fiber-woven/mullite-whisker material prepared by surface etching and gas-phase reaction

RSC Advances ◽  
2014 ◽  
Vol 4 (46) ◽  
pp. 24307-24310 ◽  
Author(s):  
Shan Liu ◽  
Jiachen Liu ◽  
Haiyan Du ◽  
Feng Hou
Keyword(s):  
Gas Phase ◽  
High Temperatures ◽  
Silica Fiber ◽  
Phase Reaction ◽  
Gas Phase Reaction ◽  
Surface Etching ◽  
Heat Sealing

Hierarchical structural silica-fiber-woven/mullite-whisker material prepared through surface etching and gas-phase reaction was suitable for application as a heat-sealing/insulation gasket at high temperatures.

Subpicogram detection system for gas phase analysis based upon atmospheric pressure ionization (API) mass spectrometry

1974 ◽  
Vol 46 (6) ◽  
pp. 706-710 ◽  
Author(s):  
D. I. Carroll ◽  
I. Dzidic ◽  
R. N. Stillwell ◽  
M. G. Horning ◽  
E. C. Horning
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Phase Analysis ◽  
Atmospheric Pressure ◽  
Detection System ◽  
Atmospheric Pressure Ionization
Sign in / Sign up

Export Citation Format

Share Document