한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)

  • 제19권4호
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  • Pages.184-189
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  • 2009
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

고상반응에 의한 NiO 나노 결정의 성장거동에 관한 연구

A study on the growth behavior of nano NiO crystals synthesized by a solid state reaction

  • 발행 : 2009.08.31
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⟨ 이전 논문 다음 논문 ⟩

초록

$Ni(NO_3)_2{\cdot}6H_2O$를 원료로 하여 고온에서 열처리함으로써 얻어진 NiO 나노 결정의 성장거동에 대하여 고찰하였다. 성장된 결정의 상은 정 8면체의 구조를 갖고 있었으며, 200${\sim}$500 nm 크기로 성장하였다. $900^{\circ}C$에서 2시간 동안 열처리하였을 때, $600^{\circ}C$ 이하의 열처리 온도에서 나타나지 않았던 (110)과 (100) facet이 생성되는 것을 관찰할 수 있었다 또한 $900^{\circ}C$ 열처리에서는, $600^{\circ}C$ 이하의 온도에서 열처리 한 시료보다 크기가 작은 결정상이 neck을 형성하면서 성장하였음을 관찰하였다.

We characterized the growth behavior of nano NiO crystals synthesized by heat-treatment in air at the elevated temperatures using nickel nitrate ($Ni(NO_3)_2{\cdot}6H_2O$). The crystals had the octahedral shape and the length of 200${\sim}$500 nm. The truncation was observed when the NiO powder was heated up to $900^{\circ}C$ for 2 hours. but not be seen at under $600^{\circ}C$. It was observed that nano NiO crystals synthesized at $900^{\circ}C$ made up the networks, the coalescence of the nano crystals through the neck formation between the crystals appeared as the first stage in the sintering mechanism.

키워드

참고문헌

  1. P. Lunkenheimer, A. Loidl, C.R. Ottermann and K. Bange, "Correlated barrier hopping in NiO films", Phys. Rev. B 44 (1991) 5927 https://doi.org/10.1103/PhysRevB.44.5927
  2. Z.H. Liang, Y.J. Zhu and X.L. Hu, "${\beta}$-Nickel hydroxide nanosheets and their thermal decomposition to nickel oxide nanosheets", J. Phys. Chem. B 108(11) (2004) 3488 https://doi.org/10.1021/jp037513n
  3. H. Wulff, M. Mohan Rao and F. Scholz, "Crystallographic evidence for the formation of a continuous series of mixed crystals between NiO and $LiNiO_2$", Chem. Mater. 15 (2003) 988 https://doi.org/10.1021/cm020584z
  4. S. Berchmans, H. Gomathi and G.P. Rao, "Electrooxidation of alcohols and sugars catalysed on a nickel oxide modified glassy carbon electrode", J. Electroana. Chem. 394(1-2) (1995) 267 https://doi.org/10.1016/0022-0728(95)04099-A
  5. B. Alcock, Baozhen Li, J.W. Fergus and L. Wang, "New electrochemical sensors for oxygen determination", Solid State Ionics 53 (1992) 39 https://doi.org/10.1016/0167-2738(92)90362-S
  6. A. Aronin, G. Abrosimova, S. Bredikhin, K. Matsuda, K. Maeda and M. Awano, "Aging of the NiO-YSZ working electrode of the electrochemical cell for NO decomposition", J. Cer. Soc. Jap. 110(8) (2002) 1284
  7. N. Radenovic, W. van Enckevort D. Kaminski, M. Heijna and Elias Vlieg, "Structure of the {111} NaCl crystal surface grown from solution in the presence of $CdCl_2$", Surf. Sci. 599 (2005) 196 https://doi.org/10.1016/j.susc.2005.10.004
  8. A. Langell, C.L. Berrie, M.H. Nassir and K.W. Wulser, "Adsorption of acetic acid on hydroxylated NiO(111) thin films", Surf. Sci. 320(1-2) (1994) 25 https://doi.org/10.1016/0039-6028(94)00491-9
  9. N. Floquet and L.-C. Dufour, "Stability and reactivity of (001) and (111) NiO: A RHEED-AES investigation of Si surface segregation and Ni formation by gas reduction", Surf. Sci. 126(1-3) (1983) 543 https://doi.org/10.1016/0039-6028(83)90755-0
  10. J.G. Chena, M.D. Weisela and R.B. Halla, "A vibrational investigation of the stability, morphology and surface reactivity of NiO on Ni(100)", Surf. Sci. 250(1-3) (1991) 159 https://doi.org/10.1016/0039-6028(91)90718-8
  11. L. Dong, Y. Chua, Y. Liua and L. Lia, "Synthesis of faceted and cubic $Ag_2S$ nanocrystals in aqueous solutions", J. Col. Interface Sci. 317 (2008) 485 https://doi.org/10.1016/j.jcis.2007.09.055
  12. S.M. Lee, S.N. Cho and J. Cheon, "Anisotropic shape control of colloidal inorganic nanocrystals", Adv. Mat. 15 (2003) 441 https://doi.org/10.1002/adma.200390102
  13. M.R. Huang, C.W. Lin and H.Y. Lu, "Crystallographic facetting in solid-state reacted LiMn2O4 spinel powder", Appl. Surf. Sci. 177 (2001) 103 https://doi.org/10.1016/S0169-4332(01)00205-7