سنتز نانوسیم‌های نقره‌ای با نسبت ابعادی بالا: مطالعه پارامتری فرایند پلی‌اُل

نویسندگان

گروه مهندسی مواد، دانشکده فنی و مهندسی، دانشگاه شهرکرد

چکیده

نانوسیم‌های نقره‌ای به‌عنوان ساختارهای تک ‌بعدی، با توجه به نسبت ابعادی بالا، هدایت الکتریکی و حرارتی بالا، شفافیت نوری و پایداری مکانیکی بالا بسیار مورد توجه قرار گرفته‌اند. سنتز نانوسیم‌های نقره با استفاده از یک فرایند سنتزی، تحت تأثیر بسیاری از پارامترها قرار دارد. تغییر پارامترهای فرایند سنتز تأثیر قابل توجهی روی مورفولوژی و اندازه نانوسیم‌های نقره می‌گذارد. در این‌ مطالعه، اثر تغییر همزمان چهار پارامتر سنتزی شامل دمای واکنش، وزن مولکولی تثبیت‌ کننده پلی‌وینیل ‌پیرولیدون، مقدار سدیم کلرید و همچنین، نرخ اختلاط محلول توسط فرایند پلی‌اُل بررسی می‌شود. نتایج میکروسکوپی الکترونی روبشی گسیل میدانی (FE-SEM)‌ و میکروسکوپی الکترونی عبوری (TEM) تأیید کرد که نانوسیم‌های نقره سنتز شده زیر 100 نانومتر هستند. طبق نتایج حاصل از طیف‌سنجی توزیع انرژی پرتوی ایکس (EDS)، آزمون پراش پرتوی ایکس (XRD)، همچنین، طیف‌سنجی مادون قرمز تبدیل فوریه (FT-IR)، نانوسیم‌های نقره تشکیل شده عاری از هر گونه ناخالصی بودند. همچنین، مشخص شد که دما، وزن مولکولی پلی‌وینیل ‌پیرولیدون، غلظت نمک و نرخ اختلاط محلول، تغییر قابل توجهی در مورفولوژی نانوسیم‌های نقره ایجاد می‌کنند. از همه مهم‌تر، تنظیم دقیق پارامترهای واکنش منجر به تشکیل نانوسیم‌هایی با اندازه یکنواخت‌تر، بازدهی و همچنین نسبت ابعادی بالاتر شد.

کلیدواژه‌ها

عنوان مقاله [English]

SYNTHESIS OF HIGH ASPECT RATIO SILVER NANOWIRES: PARAMETRIC STUDY OF THE POLYOL PROCESS

نویسندگان [English]

  • R. Karimi-Chaleshtori
  • A. Doostmohammadi
  • M. R. Saeri
  • A. Doostmohammadi
Department of Materials Engineering, Faculty of Engineering, Shahrekord University, Shahrekord, Iran
چکیده [English]

Silver nanowires (AgNWs) are considered as one-dimensional nanostructures, which have received much attention due to their nanoscale size, high aspect ratio, high electrical and thermal conductivity, optical transparency and high mechanical stability. Preparation of AgNWs by polyol process is remarkably sensitive to the interactions between synthesis parameters. In this study, the effect of the simultaneous change of four synthetic parameters, namely the reaction temperature, the molecular weight of polyvinylpyrrolidone (PVP) stabilizer, the amount of sodium chloride, as well as, the solution mixing rate by the polyol process was reported. ­The results of field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) confirmed that the synthesized AgNWs were below 100 nm. X-ray energy dispersive spectroscopy (EDS), ­X-ray diffraction (XRD) analysis, as well as, Fourier transform infrared spectroscopy (FT-IR) confirmed that the formed AgNWs were free of impurities. It was also found that temperature, molecular weight of PVP, salt concentration and solution mixing rate caused a significant change in the morphology of AgNWs. More importantly, a strong interaction was created in the preparation process of AgNWs by adjusting the parameters.

کلیدواژه‌ها [English]

  • Silver nanowires
  • Polyol
  • Polyvinylpyrrolidone

مراجع

1. Janardhanan, R., Karuppaiah, M., Hebalkar, N., and Rao, T. N., “Synthesis and Surface Chemistry of Nano Silver Particles”, Polyhedron, Vol. 28, No. 12, pp. 2522-2530, 2009.
2. Li, Y., Wang, Y., Chen, L., Li, X., Han, W., and Xie, E., “Controlled Synthesis on Ag Nanowires for Conductive Transparent Electrodes”, Materials and Manufacturing Processes, Vol. 30, No. 1, pp. 30-33, 2015.
3. Sofiah, A. G. N., Samykano, M., Kadirgama, K., Mohan, R. V., and Lah, N. A. C., “Metallic Nanowires: Mechanical Properties-Theory and Experiment”, Applied Materials Today, Vol. 11, pp. 320-337, 2018.
4. Abbasi, N. M., Yu, H., Wang, L., Amer, W. A., Akram, M., Khalid, H., Chen, Y., Saleem, M., Sun, R., and Shan, J., “Preparation of Silver Nanowires and Their Application in Conducting Polymer Nanocomposites”, Materials Chemistry and Physics, Vol. 166, pp. 1-15, 2015.
5. Trung, T. N., Arepalli, V. K., Gudala, R., and Kim, E. T., “Polyol Synthesis of Ultrathin and High-Aspect-Ratio Ag Nanowires for Transparent Conductive Films”, Materials Letters, Vol. 194, pp. 66-69, 2017.
6. Wiley, B., Sun, Y., Mayers, B., and Xia, Y., “Shape‐Controlled Synthesis of Metal Nanostructures: The Case of Silver”, Chemistry–A European Journal, Vol. 11, No. 2, pp. 454-463, 2005.
7. Coskun, S., Aksoy, B., and Unalan, H. E., “Polyol Synthesis of Silver Nanowires: An Extensive Parametric Study”, Crystal Growth & Design, Vol. 11, No. 11, pp. 4963-4969, 2011.
8. Zhang, P., Wyman, I., Hu, J., Lin, S., Zhong, Z., Tu, Y., Huang, Z., and Wei, Y., “Silver Nanowires: Synthesis Technologies, Growth Mechanism and Multifunctional Applications”, Materials Science and Engineering: B, Vol. 223, pp. 1-23, 2017.
9. Lee, J. H., Lee, P., Lee, D., Lee, S. S., and Ko, S. H., “Large-Scale Synthesis and Characterization of Very Long Silver Nanowires via Successive Multistep Growth”, Crystal Growth & Design, Vol. 12, No. 11, pp. 5598-5605, 2012.
10. Korte, K. E., Skrabalak, S. E., and Xia, Y., “Rapid Synthesis of Silver Nanowires through a CuCl-or CuCl2-Mediated Polyol Process’’, Journal of Materials Chemistry, Vol. 18, No. 4, pp. 437-441, 2008.
11. Lin, J. Y., Hsueh, Y. L., and Huang, J. J., “The Concentration Effect of Capping Agent for Synthesis of Silver Nanowire by using the Polyol Method”, Journal of Solid State Chemistry, Vol. 214, pp. 2-6, 2014.
12. Lin, J. Y., Hsueh, Y. L., Huang, J. J., and Wu, J. R., “Effect of Silver Nitrate Concentration of Silver Nanowires Synthesized using a Polyol Method and Their Application as Transparent Conductive Films”, Thin Solid Films, Vol. 584, pp. 243-247, 2015.
13. Lin, J. Y., Hsueh, Y. L., and Huang, J. J., “The Concentration Effect of Capping Agent for Synthesis of Silver Nanowire by using the Polyol Method”, Journal of Solid State Chemistry, Vol. 214, pp. 2-6, 2014.
14. Johan, M. R., Aznan, N. A. K., Yee, S. T., Ho, I. H., Ooi, S. W., Darman Singho, N., and Aplop, F., “Synthesis and Growth Mechanism of Silver Nanowires through Different Mediated Agents (CuCl2 and NaCl) Polyol Process’’, Journal of Nanomaterials, Vol. 2014, 2014. . (Article ID 105454, 7 pages, 2014. https://doi.org/10.1155/ 2014/105454).
15. Ferraro, G., and Fratini, E., “A Simple Synthetic Approach to Prepare Silver Elongated Nanostructures: From Nanorods to Nanowires”, Journal of Chemical Education, Vol. 96, No. 3, pp. 553-557, 2018.
16. Ma, J., and Zhan, M., “Rapid Production of Silver Nanowires Based on High Concentration of AgNO3 Precursor and Use of FeCl3 as Reaction Promoter”, RSC Advances, Vol. 4, No. 40, pp. 21060-21071, 2014.
17. Wang, H., Wang, Y., and Chen, X., “Synthesis of Uniform Silver Nanowires from AgCl Seeds for Transparent Conductive Films via Spin-Coating at Variable Spin-Speed”, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 565, pp. 154-161, 2019.
18. Sun, Y., Yin, Y., Mayers, B. T., Herricks, T., and Xia, Y., “Uniform Silver Nanowires Synthesis by Reducing AgNO3 with Ethylene Glycol in the Presence of Seeds and Poly (vinyl‌pyrrolidone)”, Chemistry of Materials, Vol. 14, No. 11, pp. 4736-4745, 2002.
19. Zhu, J. J., Kan, C. X., Wan, J. G., Han, M., and Wang, G. H., “High-yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in An Improved Polyol Process”, Journal of Nanomaterials, Vol. 2011, 2011. (Article ID 982547, 7 pages, 2011. https://doi.org/10.1155/2011/982547.
20. Amirjani, A., Fatmehsari, D. H., and Marashi, P., “Interactive Effect of Agitation Rate and Oxidative Etching on Growth Mechanisms of Silver Nanowires During Polyol Process’’, Journal of Experimental Nanoscience, Vol. 10, No. 18, pp. 1387-1400, 2015.
21. Banica, R., Ursu, D., Nyari, T., and Kellenberger, A., “Two Step Polyol-Solvothermal Growth of Thick Silver Nanowires”, Materials Letters, Vol. 194, pp. 181-184, 2017.
22. Mao, H., Feng, J., Ma, X., Wu, C., and Zhao, X., “One-Dimensional Silver Nanowires Synthesized by Self-Seeding Polyol Process”, Journal of Nanoparticle Research, Vol. 14, No. 6, pp. 1-15, 2012.
23. Gao, Y., Jiang, P., Liu, D. F., Yuan, H. J., Yan, X. Q., Zhou, Z. P., Wang, J. X., Song, L., Liu, L. F., Zhou, W. Y., and Wang, G., “Evidence for the Monolayer Assembly of Poly (vinylpyrrolidone) on the Surfaces of Silver Nanowires”, The Journal of Physical Chemistry B, Vol. 108, No. 34, pp. 12877-12881, 2004.
مواد پیشرفته در مهندسی
دوره 40، شماره 1
خرداد 1400
صفحه 27-44

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