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Open AccessFeature PaperArticle

Synthesis of Copper and Copper Oxide Nanomaterials by Pulsed Electric Field in Water with Various Electrical Conductivities

1
Groupe de Physique des Plasmas, Département de Physique, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3, Canada
2
Clean Combustion Research Center (CCRC), Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(7), 1347; https://doi.org/10.3390/nano10071347
Received: 16 June 2020 / Revised: 28 June 2020 / Accepted: 3 July 2020 / Published: 10 July 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
Nanomaterial synthesis is a hot research subject that has been extensively studied in the last two decades. Recently, plasmas in liquid systems have been proposed as an efficient means of synthesizing various types of nanomaterials. The formation processes implicate many physical and chemical phenomena that take place at the electrode surface, as well as in the plasma volume, which renders it difficult to fully understand the underlying mechanisms. In this study, we assess the effect of electric field on nanomaterial synthesis in a system composed of two copper electrodes immersed in water, in the absence of an electrical discharge. The obtained results indicate that various nanostructures, including copper nanoparticles, copper oxide nanowires, and/or hollow nanoparticles, may be produced, depending on the electrical conductivity of the solution (adjusted by adding highly diluted HCl to deionized water). The materials synthesized herein are collected and characterized, and a formation mechanism is proposed. Overall, our results provide insight into the physical and chemical phenomena underlying nanomaterial synthesis in plasmas in liquid. View Full-Text
Keywords: copper oxide; nanoparticles; nanowires; electric field; electrolysis copper oxide; nanoparticles; nanowires; electric field; electrolysis
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MDPI and ACS Style

Hamdan, A.; Glad, X.; Cha, M.S. Synthesis of Copper and Copper Oxide Nanomaterials by Pulsed Electric Field in Water with Various Electrical Conductivities. Nanomaterials 2020, 10, 1347.

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