期刊
CHEMISTRYOPEN
卷 2, 期 2, 页码 69-75出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/open.201300005
关键词
agglomeration and aggregation states; anodic particle coloumetry; electrochemistry; nanoparticle impact experiments; nanoparticle tracking analysis
资金
- Leverhulme Trust [F/08 788J]
Anodic particle coloumetry is used to size silver nanoparticles impacting a carbon microelectrode in a potassium chloride/citrate solution. Besides their size, their agglomeration state in solution is also investigated solely by electrochemical means and subsequent data analysis. Validation of this new approach to nanoparticle agglomeration studies is performed by comparison with the results of a commercially available nanoparticle tracking analysis system, which shows excellent agreement. Moreover, it is demonstrated that the electrochemical technique has the advantage of directly yielding the number of atoms per impacting nanoparticle irrespective of its shape. This is not true for the optical nanoparticle tracking system, which requires a correction for the nonspherical shape of agglomerated nanoparticles to derive reasonable information on the agglomeration state.
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