Preparation of Alumina Nanoparticles by Pulsed Wire Discharge in Water

Tokoi, Yoshinori; Izuari, Y M; Suzuki, Tsuneo; Nakayama, Tadachika; Suematsu, Hisayuki; Niihara, Koichi

doi:10.1088/1757-899x/18/6/062021

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…Various kinds of metal oxide NPs fabricated from the PLIs have been reported [61,[219][220][221][222][223][224][225][226][227][228][229][230][231][232][233][234]. In the following, we will give two representative results for the PLIs induced metal oxides NPs.…”

Section: Metal Oxidesmentioning

confidence: 99%

“…In contrast to the pure metallic NPs of reactive metals, the formation of corresponding metal oxides from the PLIs is relatively easy due to the existence of strong oxidizing species. Various kinds of metal oxide NPs fabricated from the PLIs have been reported [61,[219][220][221][222][223][224][225][226][227][228][229][230][231][232][233][234]. In the following, we will give two representative results for the PLIs induced metal oxides NPs.…”

Section: Metal Oxidesmentioning

confidence: 99%

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A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

303

225

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Over the past decades, a new branch of plasma research, the nanomaterial (NM) synthesis by plasma-liquid interactions (PLIs), is rapidly rising, mainly due to the recently developed various plasma sources operated from low to atmospheric pressures. The PLIs provide novel plasma-liquid interfaces where many physical and chemical processes take place. By exploiting these physical and chemical processes, various NMs ranging from noble metal nanoparticles to graphene nanosheets can be easily synthesized. The currently rapid development and increasingly wide utilization of the PLI method naturally lead to an urgent requirement for presenting a general review. This paper reviews the current status of research on plasma-liquid 2 interactions for nanomaterial syntheses. Focus is on the comprehensive understanding of the synthesis process and perceptive opinions on the present issues and future challenges in this subject.

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Section: Metal Oxidesmentioning

confidence: 99%

Section: Metal Oxidesmentioning

confidence: 99%

A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

303

225

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“…high temperature oxidation of boehmite powder [5], or precipitation method [6]. Recently, a single method wire explosion process (WEP) was employed to produce alumina NPs in oxygen gas ambient [7] and in deionized water [8]. WEP (also known as pulsed wire discharge, PWD) is a top-down approach where a wire (aluminium, Al) and the cooling/reacting medium (oxygen) are the starting materials.…”

Section: Introductionmentioning

confidence: 99%

“…Fast quenching of the vapour leads to formation of alumina NPs. Many types of NPs like metallic, oxides and alloys could be produced by changing the wire and using an appropriate ambient [7][8][9][10][11]. NPs produced by WEP have been tested for many applications.…”

Section: Introductionmentioning

confidence: 99%

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Role of energy and gas pressure on phase evolution of nano-alumina in wire explosion process

Ranjan

Sarathi

Suematsu

et al. 2021

22nd International Symposium on High Voltage Engineering (ISH 2021)

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Phase control of alumina nanoparticles (NPs) is successfully shown by wire explosion process under gas ambient. Aluminium wire was exploded at different levels of energy in oxygen ambient under pressures of 20 and 180 kPa. X-ray diffraction patterns indicate that the 20 kPa tests yield δ-alumina while 180 kPa tests yield γ-alumina NPs with an appropriate value of energy. Spherical NPs were obtained as visualised from SEM and TEM micrographs. Size of NPs decreased with an increase in energy and/or a decrease in pressure of oxygen. The formation mechanism of different phases and sizes of NPs are detailed in this paper.

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