Browse > Article
http://dx.doi.org/10.4283/JKMS.2012.22.2.037

Mössbauer Study of Silver Nanoparticle Coated Perovskites La0.7Sr0.3Co0.3Fe0.7O3-δ (LSCF)  

Uhm, Young-Rang (Radioisotope Research Division, Atomic Energy Research Institure (KAERI))
Rhee, Chang-Kyu (Nuclear Materials Development Division, Atomic Energy Research Institure (KAERI))
Kim, Chul-Sung (Department of Nano-electro Physics, Kookmin University)
Publication Information
Journal of the Korean Magnetics Society / v.22, no.2, 2012 , pp. 37-41 More about this Journal
Abstract
The Ag nanoparticles attached $La_{0.7}Sr_{0.3}Co_{0.3}Fe_{0.7}O_{3-{\delta}}$ (LSCF) perovskites were prepared by plasma method. The Ag nanoparticles with size of several nanometers deposited from the Ag target were coated on the surface of LSCF powders with size range from 0.2 to 3 ${\mu}m$. The agglomeration of Ag particles annealed at $800^{\circ}C$ under inert gas of Ar were rarely observed. The inter-diffusion between surface Ag and core LSCF is effectively strong to prevent aggregation of Ag nanoparticles. The wave number of FT-IR spectra for LSCF were largely shifted as the concentration of Ag on LSCF up to 2.11 wt.%. The ionic states of irons in LSCF were measured by M$\ddot{o}$ssbauer spectroscopy. The small amount of $Fe^{4+}$ ions are converted to $Fe^{3+}$ ions after Ag nanopartcles were coated on LSCF.
Keywords
solid oxide fuel cell (SOFC); Ag-coated $La_{0.7}Sr_{0.3}Co_{0.3}Fe_{0.7}O_{3-{\delta}}$; M$\ddot{o}$ssbauer spectroscopy;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Kim, S. Lee, J. Y. Shen, G. Corre, J. T. S. Irvine, J. M. Vohs, and R. J. Gorte, Electrochem. Solid State 12, B48 (2009).   DOI   ScienceOn
2 Y. Liu, S. Hashimoto, K. Yasumoto, K. Takei, M. Mori, Y. Funahashi, Y. Fijishiro, A. Hirano, and Y. Takeda, Curr. Appl. Phys. 9, S51 (2009).   DOI   ScienceOn
3 S. H. Mun, S. W. Kang, J.-S. Cho, S.-K. Koh, and Y. S. Kang, J. Memb. Sci. 332, 1 (2009).   DOI   ScienceOn
4 J. J. Shin, M. N. Sa, B.H. Chae, and S. K. Koh, The Korea Patent Registration Number; 0773758 (2007).
5 S.-H. Jun, Y. R. Uhm. C. K. Rhee, R.-H. Song, S.-J. Park, and H.-W. Kim, J. Kor. Phys. Soc. 59, 3648 (2011).   DOI
6 S.-H. Jun, Y. R. Uhm, R.-H. Song, and C. K. Rhee, Curr. Appl. Phys. 11, S305e (2011).   DOI   ScienceOn
7 E. Perry Murray, M. J. Sever, and S.A. Barnett, Solid State Ionics 148, 27 (2002).   DOI   ScienceOn
8 Yu Liu, Masashi Mori, Yoshihiro Funahashi, Yoshinobu Fujishiro, and Atsushi Hirano, Electrochem. Commun. 9, 1918 (2009).
9 T. L. Nguyen, T. Honda, T. Kato, Y. Iimura, K. Kato, A. Neigishi, K. Nozaki, M. Shiono, A. Kobayashi, K. Hosoda, Z. Cai, and M. Dokiya, J. Electrochem. Soc. 151, A1230 (2004).   DOI   ScienceOn
10 M. Muranaka, K. Sasaki, A. Suzuki, and T. Terai, J. Electrochem. Soc. 156, B743 (2009).   DOI   ScienceOn