Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell

Mkhohlakali, AndileFuku, XolleModibedi, Remegia MKhotseng, LMathe, Mkhulu2023-04-182023-04-182022-04Mkhohlakali, A., Fuku, X., Modibedi, R.M., Khotseng, L. & Mathe, M. 2022. Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell. Journal of the Electrochemical Society, 169(4). http://hdl.handle.net/10204/127540013-46511945-7111DOI 10.1149/1945-7111/ac645dhttp://hdl.handle.net/10204/12754Herein, we report electro-synthesis of BiTePd using electrochemical atomic layer deposition (E-ALD). The SEM-EDS, AFM, and XRD were used to characterize Pd-based thin films' surface morphology and structure composition. BiTePd electrocatalyst exhibit higher electrochemical activity, stability, and electron transfer kinetics as compared to its bimetallic counterparts using CV, CA, and Electrochemical impedance spectroscopy (EIS). The higher peak current and more negative onset potential is observed for ternary (BiTePd) nanofilm electrocatalyst towards ethanol oxidation reaction, according to this order: BiTePd = (1.26 mA; -055 V) > TePd = (0.527 mA; -0.535 V) > BiPd = (0.24 mA; -0.39 V) > Pd (0.13 mA; 0.35 V). Moreover, BiTePd = Rct (2.01 kO) gave the faster interfacial charge transfer than TePd = 2.42 kO, BiPd = 3.97 kO and Pd = 14 kO. BiTePd nanofilm demonstrates promising characteristic features of an active electrocatalyst for a direct ethanol fuel cell.AbstractenElectro-synthesis of BiTePdElectrochemical atomic layer depositionE-ALDElectrochemical impedance spectroscopyEISElectrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cellArticleMkhohlakali, A., Fuku, X., Modibedi, R. M., Khotseng, L., & Mathe, M. (2022). Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell. Journal of the Electrochemical Society, 169(4), http://hdl.handle.net/10204/12754Mkhohlakali, Andile, Xolle Fuku, Remegia M Modibedi, L Khotseng, and Mkhulu Mathe "Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell." Journal of the Electrochemical Society, 169(4) (2022) http://hdl.handle.net/10204/12754Mkhohlakali A, Fuku X, Modibedi RM, Khotseng L, Mathe M. Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell. Journal of the Electrochemical Society, 169(4). 2022; http://hdl.handle.net/10204/12754.TY - Article AU - Mkhohlakali, Andile AU - Fuku, Xolle AU - Modibedi, Remegia M AU - Khotseng, L AU - Mathe, Mkhulu AB - Herein, we report electro-synthesis of BiTePd using electrochemical atomic layer deposition (E-ALD). The SEM-EDS, AFM, and XRD were used to characterize Pd-based thin films' surface morphology and structure composition. BiTePd electrocatalyst exhibit higher electrochemical activity, stability, and electron transfer kinetics as compared to its bimetallic counterparts using CV, CA, and Electrochemical impedance spectroscopy (EIS). The higher peak current and more negative onset potential is observed for ternary (BiTePd) nanofilm electrocatalyst towards ethanol oxidation reaction, according to this order: BiTePd = (1.26 mA; -055 V) > TePd = (0.527 mA; -0.535 V) > BiPd = (0.24 mA; -0.39 V) > Pd (0.13 mA; 0.35 V). Moreover, BiTePd = Rct (2.01 kO) gave the faster interfacial charge transfer than TePd = 2.42 kO, BiPd = 3.97 kO and Pd = 14 kO. BiTePd nanofilm demonstrates promising characteristic features of an active electrocatalyst for a direct ethanol fuel cell. DA - 2022-04 DB - ResearchSpace DP - CSIR J1 - Journal of the Electrochemical Society, 169(4) KW - Electro-synthesis of BiTePd KW - Electrochemical atomic layer deposition KW - E-ALD KW - Electrochemical impedance spectroscopy KW - EIS LK - https://researchspace.csir.co.za PY - 2022 SM - 0013-4651 SM - 1945-7111 T1 - Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell TI - Electrodeposition of ternary BiTePd nanofilm electrocatalyst using surface-limited reaction for direct ethanol fuel cell UR - http://hdl.handle.net/10204/12754 ER -26454