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Corrosion‐Resistant Hybrid Nanoparticles of Polydimethylsiloxane@Fe Obtained by Thermolysis of Fe(CO) 5
Author(s) -
Aouat Yohann,
Marom Gad,
Avnir David
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501492
Subject(s) - corrosion , chemistry , dielectric spectroscopy , thermal decomposition , nanoparticle , polydimethylsiloxane , inorganic chemistry , mössbauer spectroscopy , chemical engineering , nuclear chemistry , electrochemistry , organic chemistry , crystallography , electrode , engineering
Thermal decomposition of iron pentacarbonyl, Fe(CO) 5 , in the presence of small amounts of polydimethylsiloxanes (PDMSs) leads to a hybrid aggregate of pure nanosized (about 10 nm) zero‐valent iron nanoparticles (PDMS@Fe) with remarkable corrosion‐resistance properties even after three months of immersion in saline solution. Various tests, including potentiodynamic polarization measurements and impedance spectroscopy, were carried out in a 3.5 wt.‐% NaCl solution; the results indicate a corrosion protection efficiency ( η , %) of up to 99.7 % and an iron corrosion rate estimation of 3 µm per year. Detailed characterization of the materials, including Mössbauer spectroscopy and magnetization measurements, was used to provide a mechanism for the remarkable corrosion inhibition properties of this PDMS‐doped iron nanohybrid.