Organic-phase synthesis of self-assembled gold nanosheets
Source abstract
Abstract
Amphiphilic gold nanoclusters with the diameter of 1.8 ± 0.2 nm were prepared by decomposition of organometallic gold precursor CH3AuPPh3 in the presence of mercaptoacids in o-xylene. Self-assembly of the 16-mercaptohexadecanoic acid protected gold clusters led to the formation of the nanosheets consisted of aligned gold clusters. The hydrogen bonding between the carboxylic groups attached on the adjacent gold clusters likely drives the self-assembly. This phenomenon was cross-verified by employing the preheated mercaptoacid-amine surfactant system where a part of the mercaptoacids and amines were converted into –NH3+–−OOC– ion pair and interrupting a part of the hydrogen bonding sites to lead to the reduction in the size of the structures from nanosheets to nanobelts. Interestingly, we found the dependency of the luminescent properties on the extent of maintaining the self-assembly of the clusters intern dictated by the surfactants.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced biosensing and bioanalysis techniques · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
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