Synthesis of Nanoparticles by Spark Discharge as a Facile and Versatile Technique of Preparing Highly Conductive Pt Nano-Ink for Printed Electronics
| Autor: | A. A. Lizunova, Andrey G. Musaev, Vladislav I. Borisov, Denis V. Spirin, Arseny I. Buchnev, Mikhail I. Shcherbakov, Denis V. Kornyushin, Victor V. Ivanov, Sergey S. Tikhonov, A. A. Efimov, M. N. Urazov, Pavel V. Arsenov |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering Nanoparticle Pt nano-ink Spark gap Platinum nanoparticles Article aerosol jet printing Metal resistivity lcsh:Chemistry Chemical engineering lcsh:QD1-999 Electrical resistivity and conductivity visual_art Printed electronics Nano visual_art.visual_art_medium General Materials Science Chemical composition platinum nanoparticles spark discharge |
| Zdroj: | Nanomaterials, Vol 11, Iss 234, p 234 (2021) Nanomaterials Volume 11 Issue 1 |
| ISSN: | 2079-4991 |
| Popis: | A cost-effective, scalable and versatile method of preparing nano-ink without hazardous chemical precursors is a prerequisite for widespread adoption of printed electronics. Precursor-free synthesis by spark discharge is promising for this purpose. The synthesis of platinum nanoparticles (PtNPs) using a spark discharge under Ar, N2, and air has been investigated to prepare highly conductive nano-ink. The size, chemical composition, and mass production rate of PtNPs significantly depended on the carrier gas. Pure metallic PtNPs with sizes of 5.5 ± 1.8 and 7.1 ± 2.4 nm were formed under Ar and N2, respectively. PtNPs with sizes of 18.2 ± 9.0 nm produced using air consisted of amorphous oxide PtO and metallic Pt. The mass production rates of PtNPs were 53 ± 6, 366 ± 59, and 490 ± 36 mg/h using a spark discharge under Ar, N2, and air, respectively. It was found that the energy dissipated in the spark gap is not a significant parameter that determines the mass production rate. Stable Pt nano-ink (25 wt.%) was prepared only on the basis of PtNPs synthesized under air. Narrow (about 30 &mu m) and conductive Pt lines were formed by the aerosol jet printing with prepared nano-ink. The resistivity of the Pt lines sintered at 750 ° C was (1.2 ± 0.1)· 10&minus 7 &Omega · m, which is about 1.1 times higher than that of bulk Pt. |
| Databáze: | OpenAIRE |
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