Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지
DOI QR코드

DOI QR Code

Synthesis of Core/shell Structured Ag/C Nano Particles and Properties on Annealing Conditions

전기선폭발법을 이용한 core/shell 구조 Ag/C 나노 입자의 제조 및 열처리조건에 따른 특성

  • Jun, S.H. (Nuclear Nano Materials Development LAB., Korea Atomic Energy Research Institute(KAERI)) ;
  • Uhm, Y.R. (Nuclear Nano Materials Development LAB., Korea Atomic Energy Research Institute(KAERI)) ;
  • Rhee, C.K. (Nuclear Nano Materials Development LAB., Korea Atomic Energy Research Institute(KAERI))
  • 전수형 (한국원자력연구원, 원자력재료연구부) ;
  • 엄영랑 (한국원자력연구원, 원자력재료연구부) ;
  • 이창규 (한국원자력연구원, 원자력재료연구부)
  • Received : 2010.05.28
  • Accepted : 2010.07.12
  • Published : 2010.08.28
Download PDF
⟨ Previous Next ⟩

Abstract

Multi shell graphite coated Ag nano particles with core/shell structure were successfully synthesized by pulsed wire evaporation (PWE) method. Ar and $CH_4$ (10 vol.%) gases were mixed in chamber, which played a role of carrier gas and reaction gas, respectively. Graphite layers on the surface of silver nano particles were coated indiscretely. However, the graphite layers are detached, when the particles are heated up to $250^{\circ}C$ in the air atmosphere. In contrast, the graphite coated layer was stable under Ar and $N_2$ atmosphere, though the core/shell structured particles were heated up to $800^{\circ}C$. The presence of graphite coated layer prevent agglomeration of nanoparticles during heat treatment. The dispersion stability of the carbon coated Ag nanoparticles was higher than those of pure Ag nanoparticles.

Keywords

References

  1. Y. Liu, M. Mori, Y. Funahashi, Y. Fujishiro and A. Hirano: Electrochemistry Communications, 9 (2007) 1918. https://doi.org/10.1016/j.elecom.2007.05.003
  2. G. H. Lee, J. H. Park, C. K. Rhee and W. W. Kim: J. Ind. Eng. Chem., 9 (2003) 71.
  3. G. Giesen, H. R. Orthner, A. Kowalik and P. Roth: Chem. Eng. Sci., 59 (2004) 2201. https://doi.org/10.1016/j.ces.2004.02.013
  4. L. G. Guo, W. L. Song, C. S. Xie, X. T. Zhang and M. L. Hu: Matter. Lett., 61 (2007) 3211. https://doi.org/10.1016/j.matlet.2006.11.035
  5. Z. J. Liu, Z. Y. Yuan, W. Zhou, Z. Xu and L. M. Peng: Chem. Vap. Deposition, 7 (2001) 248. https://doi.org/10.1002/1521-3862(200111)7:6<248::AID-CVDE248>3.0.CO;2-M
  6. X. F. Zhang, X. L. Dong, H. Huang, Y. Y. Liu, W. N. Wang, X. G. Zhu, B. Lv, J. P. Lei and C. G. Lee: Appl. Phys. Lett., 89 (2006) 53115. https://doi.org/10.1063/1.2236965
  7. B. S. Xu, J. J. Guo, X. M. Wang, X. G. Liu and H. Ichinose: Carbon, 44 (2006) 2631. https://doi.org/10.1016/j.carbon.2006.04.024
  8. X. L. Dong, Z. D. Zhang, S. R. Jin and B. K. Kim: J. Appl. Phys., 15 (1999) 6701.
  9. J. Jiao and S. Seraphin: J. Appl. Phys., 83 (1998) 2442. https://doi.org/10.1063/1.367004
  10. T. Hayashi, S. Hirono, M. Tomita and S. Umemura: Nature, 381 (1996) 772. https://doi.org/10.1038/381772a0
  11. D. Babonneau, A. Naudon, T. Cabioch and O. Lyon: J. Appl. Crystallogr., 33 (2000) 437. https://doi.org/10.1107/S0021889899014181
  12. S. Tomita, M. Hikita, M. Fujii, S. Hayashi, K. Akamatsu, S. Deki and H. Yasuda: J. Appl. Phys., 88 (2000) 5452. https://doi.org/10.1063/1.1317242
  13. J. S. Qiu, Q. X. Li, Z. Y. Wang, Y. F. Sun and H. Z. Zhang: Carbon, 44 (2006) 2565. https://doi.org/10.1016/j.carbon.2006.05.030
  14. Z. H. Wang, Z. D. Zhang, C. J. choi and B. K. Kim: J. Alloys Compd., 361 (2003) 289. https://doi.org/10.1016/S0925-8388(97)00220-X
  15. G. Viera, S. N. Sharma, J. J. Andujar, R. Q. Zhang, J. Costa and E. Bertran: Vacuum, 52 (1999) 183. https://doi.org/10.1016/S0042-207X(98)00203-6
  16. H. M. Lee, J. H. Park, S. M. Hong, Y. R. Uhm and C. K. Rhee: J. Kor. Powder. Metall. Inst., 16 (2009) 243. (Korean) https://doi.org/10.4150/KPMI.2009.16.4.243

Cited by

  1. Fabrication of Carbon-coated Tin Nano-powders by Electrical Wire Explosion in Liquid Media and its Electrochemical Properties vol.23, pp.4, 2016, https://doi.org/10.4150/KPMI.2016.23.4.317