Growth and mechanism of one-dimensional Al2O3 nanostructures grown by chemical vapor deposition from an Al powder source

Park, Si Jung; Choi, Yoo Youl; Kim, Jun Gyu; Choi, Doo Jin

doi:10.1016/j.jcrysgro.2012.09.038

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…The apparent structural thickness of the 1D nanocomposite fibres gradually increases with deposition time. Figure 1(a) shows the SEM images of the bare α-Al 2 O 3 nanowires grown at a temperature of 1300 °C under 130 Pa pressure, as previously reported [11]. The nanowires have diameters of between 50 and 100 nm, with a mean value of 70 nm, and their lengths can be greater than a few micrometres.…”

Section: Resultsmentioning

confidence: 70%

“…The Al 2 O 3 nanowires were synthesised in a low-pressure CVD system with an Al 2 O 3 tube mounted at the centre, as reported in our previous research [11]. The prepared nanowires were used as substrates upon which ZrO 2 was deposited using a hot-wall horizontal CVD system.…”

Section: Methodsmentioning

confidence: 99%

“…The nanowires are one-dimensional (1D) nanomaterial which have high mechanical properties and high surface area compared with bulk material [9,10]. Our α-Al 2 O 3 nanowires, which had been reported in our previous research [11], form three-dimensional network and the infiltration of reactant can be readily accessible. Also Al 2 O 3 show good thermal, chemical stability, and high hardness [12], they may be good choice as porous frameworks.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of porous Al₂O₃/ZrO₂nanocomposites by chemical vapour deposition

Park

Choi

2017

Advances in Applied Ceramics

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Al 2 O 3 /ZrO 2 one-dimensional nanocomposite structures were synthesised by chemical vapour deposition using Al 2 O 3 nanowires and a ZrCl 4 powder source at a temperature of 800 °C and a pressure of 130 Pa. The samples were characterised using X-ray diffraction, the scanning electron microscopy, the transmission electron microscopy, and N 2 adsorption-desorption. The results revealed that Al 2 O 3 /ZrO 2 composite nanowires coated with surface-embedded ZrO 2 nanocrystals were formed and that the ZrO 2 macroporous and mesoporous structures changed as the ZrO 2 deposition time increased. The pore structure and surface area were also elucidated from the N 2 adsorption-desorption measurements.

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Section: Resultsmentioning

confidence: 70%

Section: Methodsmentioning

confidence: 99%