Sculpting Windows onto AuAg Hollow Cubic Nanocrystals
Using surfactants in the galvanic replacement reaction (GRR) offers a versatile approach to modulating hollow metal nanocrystal (NC) morphology and composition. Among the various surfactants available, quaternary ammonium cationic surfactants are commonly utilised. However, understanding how they pr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/18/2590 |
| _version_ | 1797578405334482944 |
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| author | Javier Patarroyo Neus G. Bastús Victor Puntes |
| author_facet | Javier Patarroyo Neus G. Bastús Victor Puntes |
| author_sort | Javier Patarroyo |
| collection | DOAJ |
| description | Using surfactants in the galvanic replacement reaction (GRR) offers a versatile approach to modulating hollow metal nanocrystal (NC) morphology and composition. Among the various surfactants available, quaternary ammonium cationic surfactants are commonly utilised. However, understanding how they precisely influence morphological features, such as the size and void distribution, is still limited. In this study, we aim to uncover how adding different surfactants—CTAB, CTAC, CTApTS, and PVP—can fine-tune the morphological characteristics of AuAg hollow NCs synthesised via GRR at room temperature. Our findings reveal that the halide counterion in the surfactant significantly controls void formation within the hollow structure. When halogenated surfactants, such as CTAB or CTAC, are employed, multichambered opened nanoboxes are formed. In contrast, with non-halogenated CTApTS, single-walled closed nanoboxes with irregularly thick walls form. Furthermore, when PVP, a polymer surfactant, is utilised, changes in concentration lead to the production of well-defined single-walled closed nanoboxes. These observations highlight the role of surfactants in tailoring the morphology of hollow NCs synthesised through GRR. |
| first_indexed | 2024-03-10T22:22:25Z |
| format | Article |
| id | doaj.art-9b17395b3b0d49ac9a55a781f85f85d7 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T22:22:25Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-9b17395b3b0d49ac9a55a781f85f85d72023-11-19T12:15:10ZengMDPI AGNanomaterials2079-49912023-09-011318259010.3390/nano13182590Sculpting Windows onto AuAg Hollow Cubic NanocrystalsJavier Patarroyo0Neus G. Bastús1Victor Puntes2Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, SpainInstitut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, SpainInstitut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, SpainUsing surfactants in the galvanic replacement reaction (GRR) offers a versatile approach to modulating hollow metal nanocrystal (NC) morphology and composition. Among the various surfactants available, quaternary ammonium cationic surfactants are commonly utilised. However, understanding how they precisely influence morphological features, such as the size and void distribution, is still limited. In this study, we aim to uncover how adding different surfactants—CTAB, CTAC, CTApTS, and PVP—can fine-tune the morphological characteristics of AuAg hollow NCs synthesised via GRR at room temperature. Our findings reveal that the halide counterion in the surfactant significantly controls void formation within the hollow structure. When halogenated surfactants, such as CTAB or CTAC, are employed, multichambered opened nanoboxes are formed. In contrast, with non-halogenated CTApTS, single-walled closed nanoboxes with irregularly thick walls form. Furthermore, when PVP, a polymer surfactant, is utilised, changes in concentration lead to the production of well-defined single-walled closed nanoboxes. These observations highlight the role of surfactants in tailoring the morphology of hollow NCs synthesised through GRR.https://www.mdpi.com/2079-4991/13/18/2590hollow nanocrystalsgalvanic replacement reactionsurfactant effect |
| spellingShingle | Javier Patarroyo Neus G. Bastús Victor Puntes Sculpting Windows onto AuAg Hollow Cubic Nanocrystals Nanomaterials hollow nanocrystals galvanic replacement reaction surfactant effect |
| title | Sculpting Windows onto AuAg Hollow Cubic Nanocrystals |
| title_full | Sculpting Windows onto AuAg Hollow Cubic Nanocrystals |
| title_fullStr | Sculpting Windows onto AuAg Hollow Cubic Nanocrystals |
| title_full_unstemmed | Sculpting Windows onto AuAg Hollow Cubic Nanocrystals |
| title_short | Sculpting Windows onto AuAg Hollow Cubic Nanocrystals |
| title_sort | sculpting windows onto auag hollow cubic nanocrystals |
| topic | hollow nanocrystals galvanic replacement reaction surfactant effect |
| url | https://www.mdpi.com/2079-4991/13/18/2590 |
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