scholarly journals Composition, structure, and stability of the rutileTiO2(110)surface: Oxygen depletion, hydroxylation, hydrogen migration, and water adsorption

2009 ◽  
Vol 79 (11) ◽  
Author(s):  
Piotr M. Kowalski ◽  
Bernd Meyer ◽  
Dominik Marx
Keyword(s):  
Water Adsorption ◽  
Oxygen Depletion ◽  
Surface Oxygen ◽  
Structure And Stability ◽  
Hydrogen Migration ◽  
Composition Structure

Composition, Structure and Stability of PtCu/C Electrocatalysts with Non-uniform Distribution of Metals in Nanoparticles

2019 ◽  
pp. 31-46
Author(s):  
Sergey Belenov ◽  
Vladimir Guterman ◽  
Nataliya Tabachkova ◽  
Vladislav Menshchikov ◽  
Аlina Nevelskaya ◽  
...  
Keyword(s):  
Uniform Distribution ◽  
Structure And Stability ◽  
Composition Structure

The crystal chemistry of organic metals. Composition, structure, and stability in the tetrathiafulvalinium-halide systems

1977 ◽  
Vol 99 (20) ◽  
pp. 6631-6639 ◽  
Author(s):  
B. A. Scott ◽  
S. J. La Placa ◽  
J. B. Torrance ◽  
B. D. Silverman ◽  
B. Welber
Keyword(s):  
Crystal Chemistry ◽  
Structure And Stability ◽  
Organic Metals ◽  
Composition Structure

Exopolysaccharides in biofilms, flocs and related structures

2001 ◽  
Vol 43 (6) ◽  
pp. 77-86 ◽  
Author(s):  
I. W. Sutherland
Keyword(s):  
Physical Properties ◽  
Microbial Communities ◽  
Structure And Properties ◽  
Structure And Stability ◽  
Floc Structure ◽  
Planktonic Bacteria ◽  
Accurate Picture ◽  
Composition Structure ◽  
Micro Organisms

In biofilms, flocs and similar multispecies microbial communities, exopolysaccharides (EPSs) are always present, frequently as the major component other than water. The EPSs vary widely in their composition, structure and properties and thus it is impossible to generalise about their contribution to biofilm or floc structure. Relatively few of the polymers obtained from biofilms and flocs have been adequately purified and analysed but such evidence as is so far available suggests that the polysaccharides closely resemble those synthesised by the corresponding planktonic bacteria. From a knowledge of the physical properties of these, it is now possible to present a reasonably accurate picture of some of the factors which they may contribute to the structure and stability of complex aggregates of micro-organisms in biofilms and flocs.

Structure and stability of deformed partially hydrogenated carbon nanotubes

2021 ◽  
pp. 2150399
Author(s):  
Elizaveta M. Mochalova ◽  
Alexandra A. Kachina
Keyword(s):  
Carbon Nanotubes ◽  
Specific Energy ◽  
Axial Strain ◽  
Interface Energy ◽  
Applied Strain ◽  
Axial Deformation ◽  
Structure And Stability ◽  
Hydrogen Migration ◽  
Temperature Range ◽  
The Stability

In this paper, we study the effect of the axial deformation of carbon nanotubes in the zigzag and armchair directions on the stability of the interface between hydrogenated and non-hydrogenated regions. We analyze the specific energy of this interface as a function of the axial strain. We found that the clear interface can be obtained at a wider temperature range due to tube stretching. The energy barriers characterizing the process of hydrogen migration from the hydrogenated region of the nanotube to the pristine tube are calculated. It is concluded that the tube deformation significantly affects the stability of the system. For some tubes applied strain can qualitatively change the regularity of hydrogenation, changing the sign of the interface energy.

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