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Role of N-methyl-2-pyrrolidone for preparation of Fe3O4@SiO2 controlled the shell thickness

Title
Role of N-methyl-2-pyrrolidone for preparation of Fe3O4@SiO2 controlled the shell thickness
Author
최성철
Keywords
Fe3O4@SiO2; N-Methyl-2-pyrrolidone; Binary solvent; Dispersion stability; Shell thickness; Nanocomposites
Issue Date
2017-05
Publisher
SPRINGER
Citation
JOURNAL OF NANOPARTICLE RESEARCH, v. 19, no. 4, Article no. 143
Abstract
We developed a simple and novel approach for the synthesis of Fe3O4@SiO2 nanoparticles with controlled shell thickness, and studied the mechanism. The introduction of N-methyl-2-pyrrolidone (NMP) led to trapping of monomer nuclei in single shell and controlled the shell thickness. Fe3O4@SiO2 controlled the shell thickness, showing a high magnetization value (64.47 emu/g). Our results reveal the role and change in the chemical structure of NMP during the core-shell synthesis process. NMP decomposed to 4-aminobutanoic acid in alkaline condition and decreased the hydrolysis rate of the silica coating process.
URI
https://link.springer.com/article/10.1007%2Fs11051-017-3813-yhttps://repository.hanyang.ac.kr/handle/20.500.11754/114119
ISSN
1388-0764; 1572-896X
DOI
10.1007/s11051-017-3813-y
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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