Synthesis and self-assembly of zinc oxide nanoparticles with septahedral morphology
Journal Article
·
· Journal of Materials Research
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
The formation of 10-nm ZnO nanopyramids using a simple synthetic route has been isolated from the reaction of Zn(OAc)2·2H2O in 1,4-butanediol followed by ripening at 90 °C. This was accomplished by establishing control over the Ostwald ripening process through the use of a carboxylic acid specific adsorbate. In this work, using a variety of analytical methods, it is proposed that the carboxylate groups in the acetate precursor stabilize the {101} habit planes, creating septahedral shapes or nanopyramids. Particle assembly into crystallographically oriented dimers was observed with high specificity, and the association mechanism is suggested to relate to the crystal polarity and the variation in specific adsorption of the carboxylic acid to the surface facets. Lastly, these materials are a candidate for biological labeling applications in living cells.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1426975
- Report Number(s):
- SAND--2007-1028J; 524418
- Journal Information:
- Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 02 Vol. 23; ISSN 0884-2914; ISSN applab
- Publisher:
- Materials Research SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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