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Issue 47, 2018
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A novel trimeric cationic surfactant as a highly efficient capping agent for the synthesis of trisoctahedral gold nanocrystals

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Abstract

A novel trimeric cationic surfactant tri(dodecyldimethylammonioacetoxy)diethyl-triamine trichloride (DTAD) has been used as a highly efficient capping agent to synthesize trisoctahedral (TOH) Au nanocrystals (NCs). Very low concentration of DTAD (0.2 mM) can favor the formation of TOH Au NCs due to excellent interfacial adsorption ability of DTAD. The strong electrostatic interaction between the multi-charged head groups and Au facets and the hydrogen bonding among the head groups together with the stronger hydrophobic interaction between hydrocarbon chains account for high efficiency of DTAD. This study can help guide the rational design of task-specific capping agents with desired efficiency and property and minimize the negative environmental effects of surfactants during NC fabrication.

Graphical abstract: A novel trimeric cationic surfactant as a highly efficient capping agent for the synthesis of trisoctahedral gold nanocrystals

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Publication details

The article was received on 06 Sep 2018, accepted on 13 Oct 2018 and first published on 15 Oct 2018


Article type: Communication
DOI: 10.1039/C8CE01516C
Citation: CrystEngComm, 2018,20, 7631-7636
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    A novel trimeric cationic surfactant as a highly efficient capping agent for the synthesis of trisoctahedral gold nanocrystals

    W. Wang, C. Wu, J. Zhu, Y. Han, Y. Fan and Y. Wang, CrystEngComm, 2018, 20, 7631
    DOI: 10.1039/C8CE01516C

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