scholarly journals Colloidal Nanocrystalline Semiconductor Materials as Photocatalysts for Environmental Protection of Architectural Stone

Crystals ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 30 ◽  
Author(s):  
Francesca Petronella ◽  
Antonella Pagliarulo ◽  
Marinella Striccoli ◽  
Angela Calia ◽  
Mariateresa Lettieri ◽  
...  
Keyword(s):  
Environmental Protection ◽  
Semiconductor Materials ◽  
Nanocrystalline Semiconductor

Nanocrystalline semiconductor materials for solar water-splitting

2009 ◽  
Vol 483 (1-2) ◽  
pp. 445-449 ◽  
Author(s):  
E. Indrea ◽  
Simina Dreve ◽  
T.D. Silipas ◽  
G. Mihailescu ◽  
Virginia Danciu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Semiconductor Materials ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Nanocrystalline Semiconductor

Cathodoluminescence of Catalyst Crystallites

1982 ◽  
Vol 40 ◽  
pp. 664-665
Author(s):  
E.D. Boyes ◽  
P.L. Gai ◽  
D.B. Darby ◽  
C. Warwick
Keyword(s):  
Defect Density ◽  
Chemical Properties ◽  
Operating Conditions ◽  
Semiconductor Materials ◽  
Environmental Cell ◽  
High Resolution Structure ◽  
Commercially Important ◽  
Crystallographic Defects ◽  
Resolution Structure

The extended crystallographic defects introduced into some oxide catalysts under operating conditions may be a consequence and accommodation of the changes produced by the catalytic activity, rather than always being the origin of the reactivity. Operation without such defects has been established for the commercially important tellurium molybdate system. in addition it is clear that the point defect density and the electronic structure can both have a significant influence on the chemical properties and hence on the effectiveness (activity and selectivity) of the material as a catalyst. SEM/probe techniques more commonly applied to semiconductor materials, have been investigated to supplement the information obtained from in-situ environmental cell HVEM, ultra-high resolution structure imaging and more conventional AEM and EPMA chemical microanalysis.

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