نوع مقاله : مقاله پژوهشی کامل
نویسنده
دانشگاه پیام نور
10.30473/ijac.2025.76680.1332
چکیده
در کار حاضر، الکترود کربن سرامیک تهیه شده و با نانوکامپوزیت دیاکسید منگنز/نانولولههای کربنی چند دیواره (MnO₂/MWCNTs) اصلاح شد. نانولولههای کربنی چنددیواره با دیاکسید منگنز ترکیب گردید تا خواص کاتالیستی آنها بهبود یابد. نانوکامپوزیت حاصل برای بررسی کارایی در کاتالیز اکسیداسیون اتانول مورد ارزیابی قرار گرفت. مشخصهیابی کاتالیست با استفاده از پراش پرتو ایکس (XRD) ، میکروسکوپ الکترونی روبشی (SEM) و طیفسنجی مادون قرمز تبدیل فوریه (FT-IR) انجام شد. خواص الکتروشیمیایی از طریق ولتامتری چرخهای (CV)، ولتامتری پالسی تفاضلی (DPV) و کرونوآمپرومتری بررسی گردید. نتایج بدست آمده، محدودهی خطی 0/02 تا 0/3 میلیمولار، حد تشخیص 6/2 میکرومولار و ضریب نفوذ cm2s-1 5/24 × 10-7 برای اتانول را نشان داد. سطح ویژه و رسانایی بالای نانولولههای کربنی چنددیواره، در ترکیب با فعالیت کاتالیستیMnO₂، پتانسیل نانوکامپوزیت تهیهشده را برای کاربرد در پیلهای سوختی با کارایی بالا به نمایش میگذارد.
کلیدواژهها
] Manochio, C., Andrade, B. R., Rodriguez, R. P., & Moraes, B. S. (2017). Ethanol from biomass: A comparative overview. Renewable and Sustainable Energy Reviews, 80, 743-755.
[2] Wyman, C. E. (2018). Ethanol production from lignocellulosic biomass: overview. Handbook on Bioethanol, 1-18.
[3] Chandel, A. K., Albarelli, J. Q., Santos, D. T., Chundawat, S. P., Puri, M., & Meireles, M. A. A. (2019). Comparative analysis of key technologies for cellulosic ethanol production from Brazilian sugarcane bagasse at a commercial scale. Biofuels, bioproducts and biorefining, 13(4), 994-1014. https://doi.org/10.1002/bbb.1990
[4] Guo, Y., Liu, G., Ning, Y., Li, X., Hu, S., Zhao, J., & Qu, Y. (2022). Production of cellulosic ethanol and value-added products from corn fiber. Bioresources and Bioprocessing, 9(1), 81.
https://doi.org/10.1186/s40643-022-00573-9
[5] Elsaid, K., Abdelfatah, S., Elabsir, A. M. A., Hassiba, R. J., Ghouri, Z. K., & Vechot, L. (2021). Direct alcohol fuel cells: Assessment of the fuel's safety and health aspects. International Journal of Hydrogen Energy, 46(59), 30658-30668. https://doi.org/10.1016/j.ijhydene.2020.12.009
[6] Matheus, C. R., & Sousa-Aguiar, E. F. (2024). Main catalytic challenges in ethanol chemistry: A review. Catalysis Reviews, 66(1), 174-213. https://doi.org/10.1080/01614940.2022.2054554
[7] Altarawneh, R. M. (2021). Overview on the vital step toward addressing platinum catalyst poisoning mechanisms in acid media of direct ethanol fuel cells (DEFCs). Energy & Fuels, 35(15), 11594-11612. https://doi.org/10.1021/acs.energyfuels.1c00453
[8] Reddy, L. E., Gollapudi, D., Jain, G. M., Kolluru, S., & Ramesh, G. V. (2023). Recent progress in the development of Platinum-based electrocatalysts for the oxidation of ethanol in fuel cells. Materials Today: Proceedings, 92, 636-641. https://doi.org/10.1016/j.matpr.2023.04.135
[9] Alothman, Z. A., Bukhari, N., Wabaidur, S. M., & Haider, S. (2010). Simultaneous electrochemical determination of dopamine and acetaminophen using multiwall carbon nanotubes modified glassy carbon electrode. Sensors and Actuators B: Chemical, 146(1), 314-320.
[10] Wu, F. H., Zhao, G. C., & Wei, X. W. (2002). Electrocatalytic oxidation of nitric oxide at multi-walled carbon nanotubes modified electrode. Electrochemistry Communications, 4(9), 690-694. https://doi.org/10.1016/S1388-2481(02)00435-6
[11] Zhao, G. C., Zhang, L., Wei, X. W., & Yang, Z. S. (2003). Myoglobin on multi-walled carbon nanotubes modified electrode: direct electrochemistry and electrocatalysis. Electrochemistry Communications, 5(9), 825-829. https://doi.org/10.1016/j.elecom.2003.07.006
[12] Saboor, F. H., & Ataei, A. (2024). Decoration of metal nanoparticles and metal oxide nanoparticles on carbon nanotubes. Advanced Journal of Chemistry, Section A, 7(2), 122-145.
DOI: 10.48309/ajca.2024.416693.1420
[13] Yang, S. Y., Vecitis, C. D., & Park, H. (2019). Electrocatalytic water treatment using carbon nanotube filters modified with metal oxides. Environmental Science and Pollution Research, 26(2), 1036-1043. https://doi.org/10.1007/s11356-017-8495-6
[14] Jiang, L. C., & Zhang, W. D. (2010). A highly sensitive nonenzymatic glucose sensor based on CuO nanoparticles-modified carbon nanotube electrode. Biosensors and Bioelectronics, 25(6), 1402-1407. https://doi.org/10.1016/j.bios.2009.10.038
[15] Fang, B., Zhang, C., Zhang, W., & Wang, G. (2009). A novel hydrazine electrochemical sensor based on a carbon nanotube-wired ZnO nanoflower-modified electrode. Electrochimica Acta, 55(1), 178-182. https://doi.org/10.1016/j.electacta.2009.08.036
[16] Liu, Z., Wang, J., Xie, D., & Chen, G. (2008). Polyaniline‐coated Fe3O4 nanoparticle–carbon‐nanotube composite and its application in electrochemical biosensing. Small, 4(4), 462-466.
[17] Wang, Y., Hu, G., Zheng, D., Dong, J., & Wang, J. (2023). High-capacitance manganese dioxide oxide/carbon nanotube/carbon felt as a bioanode for enhanced energy output in microbial fuel cells. Coatings, 13(6), 1043. https://doi.org/10.3390/coatings13061043
[18] Amade, R., Vila-Costa, M., Hussain, S., Casamayor, E. O., & Bertran, E. (2015). Vertically aligned carbon nanotubes coated with manganese dioxide as cathode material for microbial fuel cells. Journal of Materials Science, 50(3), 1214-1220.
https://doi.org/10.1007/s10853-014-8677-2
[19] Xu, W., Xue, S., Yi, H., Jing, P., Chai, Y., & Yuan, R. (2015). A sensitive electrochemical aptasensor based on the co-catalysis of hemin/G-quadruplex, platinum nanoparticles and flower-like MnO2 nanosphere functionalized multi-walled carbon nanotubes. Chemical Communications, 51(8), 1472-1474. https://doi.org/10.1039/C4CC08860C
[20] Hameed, R. A., Fetohi, A. E., Amin, R. S., & El-Khatib, K. M. (2015). Promotion effect of manganese oxide on the electrocatalytic activity of Pt/C for methanol oxidation in acid medium. Applied Surface Science, 359, 651-663. https://doi.org/10.1016/j.apsusc.2015.10.130
[21] Panrod, C., Themsirimongkon, S., Waenkaew, P., Inceesungvorn, B., Juntrapirom, S., & Saipanya, S. (2018). Effect of noble metal species and compositions on manganese dioxide-modified carbon nanotubes for enhancement of alcohol oxidation. International Journal of Hydrogen Energy, 43(35), 16866-16880. https://doi.org/10.1016/j.ijhydene.2017.12.145
[22] Nouralishahi, A., Khodadadi, A. A., Mortazavi, Y., Rashidi, A., & Choolaei, M. (2014). Enhanced methanol electro-oxidation activity of Pt/MWCNTs electro-catalyst using manganese
oxide deposited on MWCNTs. Electrochimica Acta, 147, 192-200. https://doi.org/10.1016/j.electacta.2014.09.113
[23] Tsionsky, M., Gun, G., Glezer, V., & Lev, O. (1994). Sol-gel-derived ceramic-carbon composite electrodes: introduction and scope of applications. Analytical Chemistry, 66(10), 1747-1753. https://doi.org/10.1021/ac00082a024
[24] Tan, X., Li, M., Cai, P., Luo, L., & Zou, X. (2005). An amperometric cholesterol biosensor based on multiwalled carbon nanotubes and organically modified sol-gel/chitosan hybrid composite film. Analytical Biochemistry, 337(1), 111-120. https://doi.org/10.1016/j.ab.2004.10.040
[25] Wang, X., Chu, J., Yan, H. J., & Zhang, H. K. (2022). Synthesis and characterization of MnO2/Eggplant carbon composite for enhanced supercapacitors. Heliyon, 8(9). https://doi.org/10.1016/j.heliyon.2022.e10631
[26] Boamah, R., Agyei-Tuffour, B., Dodoo-Arhin, D., Nyankson, E., Brobbey, K. J., Obada, D., & Mohammed, L. (2023). Activated cashew carbon-manganese oxide based electrodes for supercapacitor applications. Scientific African, 20, e01647. https://doi.org/10.1016/j.sciaf.2023.e01647
[27] Li, Y., Wei, X., Han, S., Chen, L., & Shi, J. (2021). MnO2 electrocatalysts coordinating alcohol oxidation for ultra‐durable hydrogen and chemical productions in acidic solutions. Angewandte Chemie, 133(39), 21634-21642. https://doi.org/10.1002/ange.202107510
[28] Bard, A. J., Faulkner, L. R., & White, H. S. (2022). Electrochemical methods: fundamentals and applications. John Wiley & Sons.
)