Open AccessSize‐controlled synthesis of silver nanoparticles from silver mirror reaction in toluene
Author(s) -
Wang Xin,
Zhao Zhe,
Ou Dingrong,
Tu Baofeng,
Cui Daan,
Wei Xuming,
Cheng Mojie
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0099
Subject(s) - toluene , silver nanoparticle , adsorption , acetaldehyde , chemistry , nanoparticle , molar ratio , oleic acid , ion , nuclear chemistry , inorganic chemistry , catalysis , chemical engineering , photochemistry , nanotechnology , materials science , organic chemistry , ethanol , engineering , biochemistry
Size‐controlled silver nanoparticles (Ag NPs) with a size of 2–15 nm have been synthesised from silver (Ag) mirror reaction in toluene, which refers to reduction of Ag precursor (Ag–dodecylamine complexes solution) by acetaldehyde (CH 3 CHO) in the presence of oleic acid (OLA). In this synthesis, the size of Ag NPs was finely tuned by just varying the Ag precursor concentrations ( c Ag ). The addition of OLA can play an important role in stabilising the emerging Ag nuclei. With the OLA/Ag molar ratio at 3:1, the adsorption layer of enough OLA on the surface of the emerging Ag nuclei prevented the direct contact between Ag + ions and Ag nuclei, and Ag nuclei grew up to their final size by the aggregation mechanism.