TY - JOUR
T1 - The convenient preparation of stable aryl-coated zerovalent iron nanoparticles
AU - Guselnikova, Olga Andreevna
AU - Galanov, Andrey I.
AU - Gutakovskii, Anton K.
AU - Postnikov, Pavel S.
PY - 2015
Y1 - 2015
N2 - A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt chemistry is proposed. Surface-modified zerovalent iron NPs (ZVI NPs) were prepared by simple chemical reduction of iron(III) chloride aqueous solution followed by in situ modification using water soluble arenediazonium tosylate. The resulting NPs, with average iron core diameter of 21 nm, were coated with a 10 nm thick organic layer to provide long-term protection in air for the highly reactive zerovalent iron core up to 180 °C. The surface-modified iron NPs possess a high grafting density of the aryl group on the NPs surface of 1.23 mmol/g. FTIR spectroscopy, XRD, HRTEM, TGA/DTA, and elemental analysis were performed in order to characterize the resulting material.
AB - A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt chemistry is proposed. Surface-modified zerovalent iron NPs (ZVI NPs) were prepared by simple chemical reduction of iron(III) chloride aqueous solution followed by in situ modification using water soluble arenediazonium tosylate. The resulting NPs, with average iron core diameter of 21 nm, were coated with a 10 nm thick organic layer to provide long-term protection in air for the highly reactive zerovalent iron core up to 180 °C. The surface-modified iron NPs possess a high grafting density of the aryl group on the NPs surface of 1.23 mmol/g. FTIR spectroscopy, XRD, HRTEM, TGA/DTA, and elemental analysis were performed in order to characterize the resulting material.
KW - Arenediazonium salts
KW - Chemical reduction
KW - Covalent modification
KW - Surface-modified nanoparticles
KW - Zerovalent iron nanoparticles
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U2 - 10.3762/bjnano.6.121
DO - 10.3762/bjnano.6.121
M3 - Article
AN - SCOPUS:84933045064
VL - 6
SP - 1192
EP - 1198
JO - Beilstein Journal of Nanotechnology
JF - Beilstein Journal of Nanotechnology
SN - 2190-4286
IS - 1
ER -