Ni3[Co(CN)6]2 PBA 나노큐브를 통한 단분산된 3차원 구조의 NiO/NiCo2O4 제조 및 특성 평가
Synthesis and characterization of three-dimensional monodispersed NiO/NiCo2O4 via Ni3[Co(CN)6]2 PBA nanocubes
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초록
Ni3[Co(CN)6]2 PBAs의 하소과정을 통해 단분산된 NiO/NiCo2O4 나노큐브를 성공적으로 합성했다. 단분산된Ni3[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 o C에서 단분산된 200 nm의 PBA 나노큐브들을 얻을 수 있었다. 최적의 하소 조건을 결정하기 위해Thermogravimetric-Differential Thermal Analysis(TG-DTA)를 통해 열적 거동을 확인하였다. 그리고 PBA 전구체 및 NiO/ NiCo2O4 입자의 형상과 결정성을 확인하기 위해 Field emission scanning electron microscopy(FESEM)과 X-ray diffraction (XRD) 분석을 진행하였다.
Abstract
NiO/NiCo2O4 nanocubes were successfully synthesized via the calcination process of Ni3[Co(CN)6]2 PBAs. The prepared monodispersed Ni3[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 o 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/ NiCo2O4 nanocubes.
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