Semi-circular shaped ZnO nanowhiskers assemblies deposited using an aqueous solution

Hu, Xiulan; Masuda, Yoshitake; Ohji, Tatsuki; Kato, Kazumi

doi:10.1016/j.apsusc.2008.07.093

Cited by 11 publications

(9 citation statements)

References 38 publications

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“…The calculation of spherical particles indicated (not Wulff shapes) a crossover size of about 2.6 nm. This was close to those obtained by MD 68) (105,106) and other density functional theory (DFT) calculations. (113).…”

Section: Development Of Tio 2 Nanostructures and Morphology Controlsupporting

confidence: 89%

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Ceramic nanostructures of SnO2, TiO2, and ZnO via aqueous crystal growth: cold crystallization and morphology control

Masuda

2020

J. Ceram. Soc. Japan

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Ceramics are traditionally synthesized using high temperature annealing. However, cold crystallization is studied with respect to energy saving, low environmental impact, low cost, and hybridization with organic materials and metals, etc. In addition, nanostructure control is required for higher functionality. In this paper, crystal growth control in aqueous solution and morphology control of the ceramic nanostructures are introduced to provide next-generation devices.

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Section: Development Of Tio 2 Nanostructures and Morphology Controlsupporting

confidence: 89%

“…Semi-circular shaped ZnO whisker assemblies, 105) bunched rose-like particles, 106) coreshell-like particles, 106) ZnO twin assembly films 107) and Zn(OH) 2 /ZnO sheet-ZnO whisker hybrid films 108) were also reported.…”

Section: Development Of Zno Nanostructures 41 Development Of Zno Nanmentioning

confidence: 92%

Ceramic nanostructures of SnO2, TiO2, and ZnO via aqueous crystal growth: cold crystallization and morphology control

Masuda

2020

J. Ceram. Soc. Japan

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“…Various methods yield the large variety of shapes, sizes, and crystalline forms, as well as differing optical properties (Colón et al 2008). These methods include hydrothermal synthesis (Hu et al 2008), sol-gel processes (Rani et al 2008), chemical deposition (Lokhande et al 2009), chemical vapor deposition (Hu et al 2012), and gasphase reactions.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Flower-like ZnO Nanoparticles in a Cellulose Hydrogel Microreactor

Qin

Jiang

et al. 2017

BioResources

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*Flower-like zinc oxide (ZnO) nanoparticles were synthesized with sodium hydroxide and zinc acetate in a cellulose hydrogel microreactor (prepared by the inversion method). The samples were characterized by scanning electron microscopy, EDX, x-ray diffractometry, ultravioletvisible diffuse reflection spectroscopy, and nitrogen adsorptiondesorption. The results indicated that ZnO grows in a flower-like shape in the pores of the cellulose hydrogel. The pure hexagonal wurtzite structures have uniform diameters in the range of 10 nm to 30 nm, surface areas of 39.18 m 2 /g, and pore volumes of 0.2109 cm 3 /g. This study also investigated the photocatalytic properties. The nanoparticles have a band gap of 3.23 eV and a 95.2% efficiency for the ultraviolet degradation of rhodamine B over 3 h at room temperature.

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“…Hu et al. developed semicircular ZnO nanowhisker assemblies on a pretreated substrate in an aqueous solution 112 . The preexisting aggregated ZnO nanosheets derived from the thermal decomposition of zinc nitrate at 350°C played an essential role.…”

Section: Cold Crystallization and Morphology Control Of Zno Nanostruc...mentioning

confidence: 99%

Cold crystallization and morphology control of ZnO nanostructures for chemical sensors

Masuda

2022

Int J Applied Ceramic Tech

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Cold crystallization and morphology control of ZnO nanostructures have been achieved. Various ZnO nanostructures, such as ZnO rod arrays, high c‐axis‐oriented stand‐alone ZnO self‐assembled films, ZnO particulate films, ZnO nanorod arrays, semicircular ZnO nanowhisker assemblies, bunched rose‐ and core–shell‐like ZnO particles, twin ZnO nanoarray assemblies, ZnO nanotubes, and ZnO nanoflowers, have been developed using the hexagonal crystal structure of ZnO. These structures have advantages, such as high anisotropy, high specific surface area, high crystallinity, and characteristic crystal facets, and can be applied in devices such as photoelectric conversion sensors, chemical sensors, gas sensors, batteries, and catalysts. Additionally, various nanostructures using other oxide materials are expected to be developed by applying the scientific knowledge obtained from the cold crystallization and morphology control of ZnO. Cold crystallization, which is a long‐standing challenge in the field of ceramics, has been realized, which is a historical turning point in the field of ceramics research.

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Semi-circular shaped ZnO nanowhiskers assemblies deposited using an aqueous solution

Cited by 11 publications

References 38 publications

Ceramic nanostructures of SnO<sub>2</sub>, TiO<sub>2</sub>, and ZnO via aqueous crystal growth: cold crystallization and morphology control

Ceramic nanostructures of SnO<sub>2</sub>, TiO<sub>2</sub>, and ZnO via aqueous crystal growth: cold crystallization and morphology control

Preparation of Flower-like ZnO Nanoparticles in a Cellulose Hydrogel Microreactor

Cold crystallization and morphology control of ZnO nanostructures for chemical sensors

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