ISSN:
0018-019X
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
δ-MnO2 shows a fast isotope exchange reaction owing to its special structure. It consists of an irregular accumulation of thin MnO2-layers. Surface determinations were carried out by the BET adsorption method. The isotherms were measured with nitrogen at the temperature of liquid nitrogen. The surface found for MNII-Manganite samples was between 30 and 50 m2/g. For δ-MnO2 samples the surface was about 300 m2/g. The calculated surface area for a monoatomic layer amounts to 720 m2/g. Therefore the thicknes of the “two-dimensional” δ-MnO2-crystals lies between 2 to 3 atomic layers.
Zusätzliches Material:
1 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/hlca.19550380327
Permalink