๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

NOTE ON COBALT OXIDE

โœ Scribed by N. B. Davis


Book ID
110797918
Publisher
John Wiley and Sons
Year
1920
Tongue
English
Weight
175 KB
Volume
3
Category
Article
ISSN
0002-7820

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The effect of aluminium oxide on the red
โœ Lendzion-Bieluล„, Zofia ;Jฤ™drzejewski, Roman ;Arabczyk, Walerian ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Walter de Gruyter GmbH ๐ŸŒ English โš– 446 KB

## Abstract During precipitation and calcination at 200ยฐC nanocrystalline Co3O4 was obtained with average size crystallites of 13 nm and a well developed specific surface area of 44 m2 gโˆ’1. A small addition of a structural promoter, e.g. Al2O3, increases the specific surface area of the cobalt oxid