Synthesis and self-assembly of squarelike PbCrO4 nanoplatelets via micelle-mediated depletion attraction
The self-assembly of nanoparticles triggered by attractive depletion forces presents a versatile pathway for building nanostructural superlattices directly in solution. In this work, the synthesis of squarelike lead chromate (PbCrO4) nanoplatelets is described, and their assembly into well-defined s...
| Veröffentlicht in: | Langmuir : the ACS journal of surfaces and colloids. - 1992. - 29(2013), 15 vom: 16. Apr., Seite 4679-87 |
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| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Zugriff auf das übergeordnete Werk: | Langmuir : the ACS journal of surfaces and colloids |
| Schlagworte: | Journal Article |
| Zusammenfassung: | The self-assembly of nanoparticles triggered by attractive depletion forces presents a versatile pathway for building nanostructural superlattices directly in solution. In this work, the synthesis of squarelike lead chromate (PbCrO4) nanoplatelets is described, and their assembly into well-defined stacks by introducing various types of micelles as depletion agents is studied. The kinetics of the reversible assembly process in solution is probed by light scattering, and the depletion-induced self-assembly of the nanoplatelets is investigated by transmission electron microscopy. For nonionic surfactants, rodlike micelles are found to be more efficient at producing self-assembled particles than are spherelike micelles, in accordance with an increased depletion force. Adding ionic surfactants additionally leads to a segregation of PbCrO4 rod reaction byproducts |
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| Beschreibung: | Date Completed 26.09.2013 Date Revised 16.04.2013 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/la4001347 |