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

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis and characterization of three-dimensional monodispersed NiO/NiCo2O4 via Ni3[Co(CN)6]2 PBA nanocubes

Ni3[Co(CN)6]2 PBA 나노큐브를 통한 단분산된 3차원 구조의 NiO/NiCo2O4 제조 및 특성 평가

  • Kwag, Sung Hoon (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Lee, Young Hun (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Kim, Min Seob (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Lee, Chul Woo (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Kang, Bong Kyun (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Yoon, Dae Ho (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
  • 곽성훈 (성균관대학교 신소재공학과) ;
  • 이영훈 (성균관대학교 신소재공학과) ;
  • 김민섭 (성균관대학교 신소재공학과) ;
  • 이철우 (성균관대학교 신소재공학과) ;
  • 강봉균 (성균관대학교 신소재공학과) ;
  • 윤대호 (성균관대학교 신소재공학과)
  • Received : 2017.04.24
  • Accepted : 2017.06.08
  • Published : 2017.06.30
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Abstract

$NiO/NiCo_2O_4$ nanocubes were successfully synthesized via the calcination process of $Ni_3[Co(CN)_6]_2$ PBAs. The prepared monodispersed $Ni_3[Co(CN)_6]_2$ PBAs were aggregated by 'self-assembly' of the nuclei generated during the synthesis reaction. The self-assembly rate of the particles is affected by the temperature and the amount of surfactant SDBS (sodium dodecylbenzenesulfonate). FESEM analysis shows that monodispersed 200 nm PBA nanocubes are obtained at 0.25 g SDBS and $60^{\circ}C$ temperature. Thermal behavior was confirmed by thermogravimetric-differential thermal analysis (TG-DTA) to determine optimal calcination conditions. Then, field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analyzes were performed to investigate the morphology and crystallinity of the particles precursors and $NiO/NiCo_2O_4$ nanocubes.

$Ni_3[Co(CN)_6]_2$ PBAs의 하소과정을 통해 단분산된 $NiO/NiCo_2O_4$ 나노큐브를 성공적으로 합성했다. 단분산된 $Ni_3[Co(CN)_6]_2$ PBAs 나노큐브는 수열합성 반응 시 생성된 핵 들의 '자기조립'에 의해 형성된다. 이때 입자의 자기조립 속도는 온도와 계면활성제인 SDBS(Sodiumdodecylbenzenesulfonate)의 양에 의해 영향을 받으며, FESEM 분석을 통하여 SDBS: 0.25 g, 온도: $60^{\circ}C$에서 단분산된 200 nm의 PBA 나노큐브들을 얻을 수 있었다. 최적의 하소 조건을 결정하기 위해 Thermogravimetric-Differential Thermal Analysis(TG-DTA)를 통해 열적 거동을 확인하였다. 그리고 PBA 전구체 및 $NiO/NiCo_2O_4$ 입자의 형상과 결정성을 확인하기 위해 Field emission scanning electron microscopy(FESEM)과 X-ray diffraction(XRD) 분석을 진행하였다.

Keywords

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