Preparation and characterization of nanopowder for emission materials by freeze-drying
β Scribed by Xiaoli Xi; Zuoren Nie; Jiancan Yang; Xiaotian Fu; Dengmei Ji; Tieyong Zuo
- Book ID
- 113656209
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 636 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0263-4368
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Ultrafine cobalt powders have been prepared by the freeze-drying method and supported cobalt catalysts have been prepared by a new freeze-drying immersion method. The results of XRD and SEM showed that the precursors were amorphous and most were massive with a size range of 2-5 Β΅m. In the cobalt pow
## Abstract ## Background Dry powder dispersion devices offer potential for delivering therapeutic macromolecules to the pulmonary epithelia. Previously, freezeβdrying (lyophilisation) has been the accepted method for preparing dried formulations of proteins and nonβviral gene vectors despite the