Properties of Nanocomposite Ag-Cu Colloids Prepared by Electrical Spark Discharge Method.
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| Title: | Properties of Nanocomposite Ag-Cu Colloids Prepared by Electrical Spark Discharge Method. |
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| Authors: | Chung, Meng-Yun1 (AUTHOR) alexmychung@gmail.com, Chen, Kuo-Tung1 (AUTHOR), Chang, Chaur-Yang1 (AUTHOR), Hang, Jun-Fu1 (AUTHOR), Tseng, Kuo-Hsiung1 (AUTHOR) |
| Source: | Nanomaterials (2079-4991). Feb2026, Vol. 16 Issue 4, p223. 17p. |
| Subjects: | Electric spark, Colloidal stability, Transmission electron microscopy, X-ray diffraction, Nanoparticles, Nanocomposite materials, Particle size distribution, Silver nanoparticles |
| Abstract: | Electrical spark discharge was used to prepare nano Ag–Cu colloids with an electrical discharge machine, deionized water (DW) as the dielectric fluid (DF), and at room temperature and normal pressure. The upper and lower electrodes of the electrical discharge machine were pure Ag and Cu wires or composite metal wires with an Ag–Cu ratio of 92.5:7.5 or 72:28. The optimal Ton–Toff, process time, and current for colloid production were identified as 30–30 µs, 5 min, and approximately 11 A, respectively. The absorbance, characteristic wavelength, particle size distribution, and suspension stability were, respectively, 0.586, 406 nm, 101 nm, and 28.1 mV for the colloids prepared using pure Ag and Cu wires; 0.509, 419 nm, 197.5 nm, and −6.67 mV for the 92.5:7.5 composite wires; and 1.479, 407 nm, 85.27 nm, and14.8 mV for the 72:28 composite wires. The diffraction peaks of the Ag and Cu particles shifted for the composite-produced colloids; this was likely caused by internal structural defects in the composite metal wires. Transmission electron microscopy was used to analyze the nanomaterials. The average Ag and Cu lattice widths, respectively, were 0.234 nm and 0.207 nm for the pure-metal wires, 0.243 nm and 0.210 nm for the 92.5:7.5 composite wires, and 0.243 nm and 0.210 nm for the 72:28 composite wires. X-ray diffraction (XRD) analyses were conducted to determine the crystal orientations of the nano Ag–Cu particles and revealed that nano Ag–Cu colloids prepared using pure Ag and Cu wires had an Ag–Cu particle ratio of approximately 97:3. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 192039940 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Properties of Nanocomposite Ag-Cu Colloids Prepared by Electrical Spark Discharge Method. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chung%2C+Meng-Yun%22">Chung, Meng-Yun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> alexmychung@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Kuo-Tung%22">Chen, Kuo-Tung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chang%2C+Chaur-Yang%22">Chang, Chaur-Yang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hang%2C+Jun-Fu%22">Hang, Jun-Fu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tseng%2C+Kuo-Hsiung%22">Tseng, Kuo-Hsiung</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Feb2026, Vol. 16 Issue 4, p223. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electric+spark%22">Electric spark</searchLink><br /><searchLink fieldCode="DE" term="%22Colloidal+stability%22">Colloidal stability</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+size+distribution%22">Particle size distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+nanoparticles%22">Silver nanoparticles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Electrical spark discharge was used to prepare nano Ag–Cu colloids with an electrical discharge machine, deionized water (DW) as the dielectric fluid (DF), and at room temperature and normal pressure. The upper and lower electrodes of the electrical discharge machine were pure Ag and Cu wires or composite metal wires with an Ag–Cu ratio of 92.5:7.5 or 72:28. The optimal Ton–Toff, process time, and current for colloid production were identified as 30–30 µs, 5 min, and approximately 11 A, respectively. The absorbance, characteristic wavelength, particle size distribution, and suspension stability were, respectively, 0.586, 406 nm, 101 nm, and 28.1 mV for the colloids prepared using pure Ag and Cu wires; 0.509, 419 nm, 197.5 nm, and −6.67 mV for the 92.5:7.5 composite wires; and 1.479, 407 nm, 85.27 nm, and14.8 mV for the 72:28 composite wires. The diffraction peaks of the Ag and Cu particles shifted for the composite-produced colloids; this was likely caused by internal structural defects in the composite metal wires. Transmission electron microscopy was used to analyze the nanomaterials. The average Ag and Cu lattice widths, respectively, were 0.234 nm and 0.207 nm for the pure-metal wires, 0.243 nm and 0.210 nm for the 92.5:7.5 composite wires, and 0.243 nm and 0.210 nm for the 72:28 composite wires. X-ray diffraction (XRD) analyses were conducted to determine the crystal orientations of the nano Ag–Cu particles and revealed that nano Ag–Cu colloids prepared using pure Ag and Cu wires had an Ag–Cu particle ratio of approximately 97:3. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano16040223 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 223 Subjects: – SubjectFull: Electric spark Type: general – SubjectFull: Colloidal stability Type: general – SubjectFull: Transmission electron microscopy Type: general – SubjectFull: X-ray diffraction Type: general – SubjectFull: Nanoparticles Type: general – SubjectFull: Nanocomposite materials Type: general – SubjectFull: Particle size distribution Type: general – SubjectFull: Silver nanoparticles Type: general Titles: – TitleFull: Properties of Nanocomposite Ag-Cu Colloids Prepared by Electrical Spark Discharge Method. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chung, Meng-Yun – PersonEntity: Name: NameFull: Chen, Kuo-Tung – PersonEntity: Name: NameFull: Chang, Chaur-Yang – PersonEntity: Name: NameFull: Hang, Jun-Fu – PersonEntity: Name: NameFull: Tseng, Kuo-Hsiung IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 16 – Type: issue Value: 4 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
| ResultId | 1 |
