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In-Liquid Plasma Process for Size- and Shape-Controlled Synthesis of Silver Nanoparticles by Controlling Gas Bubbles in Water

Title
In-Liquid Plasma Process for Size- and Shape-Controlled Synthesis of Silver Nanoparticles by Controlling Gas Bubbles in Water
Authors
Kim, Hyun-JinShin, Jun-GooPark, Choon-SangKum, Dae SubShin, Bhum JaeKim, Jae YoungPark, Hyung-DalChoi, MuhanTae, Heung-Sik
DGIST Authors
Kim, Jae Young
Issue Date
2018-06
Citation
Materials, 11(6), 891
Type
Article
Article Type
Article
Keywords
Bubble formationBubbles (in fluids)ElectrodesGasesHigh resolution transmission electron microscopyMetal nanoparticlesScanning electron microscopySilver nanoparticlesTransmission electron microscopyControlled synthesisGas bubble formationGrounded electrodesScanning electron microscopy imageSilver nanoparticles (AgNps)Silver nanoplateSize and shape controlledVoltage waveformsSynthesis (chemical)
ISSN
1996-1944
Abstract
Most methods controlling size and shape of metal nanoparticles are chemical methods, and little work has been done using only plasma methods. Size- and shape-controlled synthesis of silver nanoparticles (Ag NPs) is proposed based on adjusting the gas bubble formation produced between two silver electrodes. The application of a voltage waveform with three different pulse widths during a plasma process in water can generate different gas bubble formations. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) images of Ag NPs synthesized using three different bubble formations reveal that spherical Ag NPs are synthesized when very tiny bubbles are generated between two electrodes or when only the grounded electrode is enveloped with large gas bubbles, but Ag nanoplates are synthesized when both electrodes are completely enveloped with large gas bubbles. © 2018 by the authors.
URI
http://hdl.handle.net/20.500.11750/6581
DOI
10.3390/ma11060891
Publisher
MDPI
Files:
Collection:
Department of New BiologyETC1. Journal Articles


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