Corrosion‐Resistant Hybrid Nanoparticles of Polydimethylsiloxane@Fe Obtained by Thermolysis of Fe(CO)5. Issue 10 (9th March 2016)

• Record Type: Journal Article
• Authors: Aouat, Yohann; Marom, Gad; Avnir, David
• Is Part Of: European journal of inorganic chemistry. Issue 10(2016)
• Page Start: 1488
• Page End: 1496
• Publication Date: 2016-03-09
• Subjects: Iron -- Carbonyl ligands -- Nanoparticles -- Corrosion resistance -- Magnetic properties; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201501492
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: 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. Abstract : Thermal decomposition of 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 with a corrosion rate lower than 3 µm per year.