Paper Title:
Ferromagnetic Nanomaterials Obtained by Thermal Decomposition of Ferrocene
  Abstract

Ferromagnetic micro and nano particles that are chemically resistant have been obtained by thermal decomposition of ferrocenes in a tightly closed chamber at high pressures. The investigation is focused on the influence of decomposition temperature, work atmosphere, temperature-change rate and process duration. According to the conditions, Fe3C, Fe3O4 and pure α-Fe particles have been created. Their composition and structure have been studied by Mössbauer spectroscopy, Scanning and Transmission Electron Microscopy, Electron Probe X-ray Micro Analysis and Energy Dispersive X-ray Spectrometry. In a tightly closed chamber, all components obtained during the decomposition process remain there. This difference to the widely-used Chemical Vapor Deposition method is very important. It inhibits the decomposition process and growth of ordered structures, preventing the end materials to be separated from each other. During the process, iron is liberated from the ferrocene molecule. Experiments have shown that it is highly chemically active to carbon and oxygen. For example, creation of carbide occured in conditions that are not allowed according to the iron-carbon phase diagram valid for bulk iron. Parallel to the reaction of iron with carbon (according to work atmosphere), the surplus of carbon atoms causes emerging of carbon nanoparticles.

  Info
Periodical
Solid State Phenomena (Volume 159)
Edited by
Lilyana Kolakieva and Roumen Kakanakov
Pages
105-108
DOI
10.4028/www.scientific.net/SSP.159.105
Citation
N. Koprinarov, M. Konstantinova, M. Marinov, "Ferromagnetic Nanomaterials Obtained by Thermal Decomposition of Ferrocene", Solid State Phenomena, Vol. 159, pp. 105-108, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sanjeev K. Gupta, Mina Talati, Prafulla K. Jha
Abstract:The present paper reports a simple calculation of the size and shape dependent melting temperature of nanoparticles. The melting temperature...
132
Authors: V.B. Vykhodets, Tatiana Eugenievna Kurennykh, N.U. Tarenkova
Abstract:Using nuclear microanalysis (NRA) and electron probe microanalysis (EPMA), concentrations of carbon, oxygen, nitrogen, aluminum, and...
707
Authors: Z.G. Wang
Abstract:Since Einstein predicted the phenomenon of Bose-Einstein Condensation in 1924, more physical scientists have tried to realize it, but they...
381
Authors: Ke Hua Zhong, Qian Feng, Xu Huang, Gui Gui Xu, Zhi Gao Chen, Zhi Gao Huang
Abstract:The magnetic moments of Co3 clusters on Cu(111), Pd(111), Ne(111) and two polar ZnO surfaces non-magnetic substrates are investigated using...
810
Authors: Dong Mei Li, Zhi Hua Xiong, Qi Xin Wan
Chapter 1: Technology of Materials and Chemistry
Abstract:Using density functional theory, the equilibrium geometries of TinO2n and TinO2n-1 clusters (n=1-4) have been obtained. It suggests that the...
79