Rapid Synthesis of Gold Nano-Particles Using Pulse Waved Potential in a Non-Aqueous Electrolyte

• Autorzy: Jang J. G. , Lee J.-O. , Lee C. K.

Identyfikatory

DOI

10.1515/amm-2017-0214

• Języki publikacji: EN

Abstrakty

EN

Rapid synthesis of gold nanoparticles (AuNPs) by pulsed electrodeposition was investigated in the non-aqueous electrolyte, 1-ethyl-3-methyl-imidazoliumbis(trifluoro- methanesulfonyl)imide ([EMIM]TFSI) with gold trichloride (AuCl₃). To aid the dissolution of AuCl₃, 1-ethyl-3-methyl-imidazolium chloride ([EMIM]Cl) was used as a supporting electrolyte in [EMIM]TFSI. Cyclicvoltammetry experiments revealed a cathodic reaction corresponding to the reduction of gold at −0.4 V vs. Pt-QRE. To confirmthe electrodeposition process, potentiostatic electrodeposition of gold in the non-aqueous electrolyte was conducted at −0.4 V for 1 h at room temperature. To synthesize AuNPs, pulsed electrodeposition was conducted with controlled duty factor, pulse duration, and overpotential. The composition, particle-size distribution, and morphology of the AuNPs were confirmed by field-emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDS), and transmission electron microscopy (TEM). The electrodeposited AuNPs were uniformly distributed on the platinum electrode surface without any impurities arising from the non-aqueous electrolyte. The size distribution of AuNPs could be also controlled by the electrodeposition conditions.

Słowa kluczowe

EN

gold; nanoparticle; nonaqueous electrolyte; pulse wave; catalyst

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1389--1392
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Jang J. G.

• School of Advanced Materials Science and Engineering, Kumoh National Institute of Technology, 1 Daehak-Ro, Gumi, Gyungbuk, 39177 Korea (Republic of)

autor

Lee J.-O.

• School of Advanced Materials Science and Engineering, Kumoh National Institute of Technology, 1 Daehak-Ro, Gumi, Gyungbuk, 39177 Korea (Republic of)

autor

Lee C. K.

• School of Advanced Materials Science and Engineering, Kumoh National Institute of Technology, 1 Daehak-Ro, Gumi, Gyungbuk, 39177 Korea (Republic of)

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)