Synthesis of gold nanoparticles in aqueous solutions not containing additional interfering components using sulfite method: the effect of thiol-containing acid additives
| العنوان: | Synthesis of gold nanoparticles in aqueous solutions not containing additional interfering components using sulfite method: the effect of thiol-containing acid additives |
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| المؤلفون: | Viktoria Yu. Kharlamova, I. V. Mironov |
| المصدر: | Gold Bulletin. 54:37-44 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Aqueous solution, Protonation, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Redox, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Sulfite, chemistry, Thiourea, Colloidal gold, Thiol, General Materials Science, 0210 nano-technology, Sodium sulfite, Nuclear chemistry |
| الوصف: | Stable solutions of gold nanoparticles with an average diameter of 13 nm and CAu = 5×10–4 M were obtained by the reduction of HAuCl4 with an equivalent amount of sodium sulfite at 80–100 °C in the presence of 2% PEG 6000 as a stabilizer: AuCl4– + 3/2 SO32– + 3/2 H2O → Au0 + 3/2 SO42– + 3 H+ + 4 Cl–. The resulting solutions of nanoparticles do not contain additional components capable of complexation, redox, and acid-based interactions. The effect of additives of thiourea, cysteine, thiomalate, and glutathione at various pH on the stability of such solutions to the aggregation has been studied. It was shown that the values of the protonation constants and charges of species of a thiol-containing component are not the only factors determining stability. Using thiomalate (HTM2–) as an example, it was shown also that at pH 7–8, the chemisorption is not followed by the release of H+ ions into the solution. |
| تدمد: | 2190-7579 2364-821X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e06d3d471353103f208cd2cdd8123417 https://doi.org/10.1007/s13404-021-00291-8 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........e06d3d471353103f208cd2cdd8123417 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 21907579 2364821X |
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