I have made gold nanoparticles using the reverse turkevich process. After infusing salt (ZnBr2), I have been getting globural structure of nanoparticles (blue in UV Vis plot)
instead of 1D chain-like of nanoparticles (green in UV Vis plot).
For my research, I need chain-like nanoparticles. I am wondering if anyone can give some suggestions on how to solve this problem.
chain-like particles can only be obtained if there are only 2 points of connection, like in polymerization, e.g., polyaddition of ethylene oxide.
As Dr. Sobisch mentioned above, you need two points of connection. In other words, you have to use directional Ostwald ripening process to produce Au nanowires.
To the best of my knowledge, 1-naphtol assisted synthesis fo Au nanowires is the most facile and rapid method. It works as a coordination, reducing and structure-directing agent at the same time. The reaction yield is very high. Read this paper for your reference 10.1039/C8TA06676K
However, if you need to control aspect ratio precisely, try seed-mediated growth method.
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