The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.
📌 3 Key Takeaways
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Objective & Hypothesis:In this study, a bimetallic catalyst consisting of Pt and Pd nanoparticles supported on poly(vinylferrocene), i.e., PtPd@PVF was electrochemically prepared on pencil graphite electrode to improve the catalytic properties of previously developed Pt@PVF catalyst.
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Key Findings & Data:K2PtCl4 and K2PdCl4 were used as the metal precursors in order to disperse the Pt and Pd onto the conducting polymer support by cyclic voltammetry technique.
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Conclusion & Impact:The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.
In this study, a bimetallic catalyst consisting of Pt and Pd nanoparticles supported on poly(vinylferrocene), i.e., PtPd@PVF was electrochemically prepared on pencil graphite electrode to improve the catalytic properties of previously developed Pt@PVF catalyst. K2PtCl4 and K2PdCl4 were used as the metal precursors in order to disperse the Pt and Pd onto the conducting polymer support by cyclic voltammetry technique. Electrochemical and chemical reduction methods were compared for the reduction of Pt and Pd complexes. The prepared catalyst system was electrochemically characterized by cyclic voltammetry. Physical characterization of the catalyst was performed by recording scanning electron microscopy images and energy dispersive X-ray spectrum. The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.
ÇELEBİ, M. S., ÖZTÜRK, K., DUMANGÖZ, M. (2021). Electrochemical Synthesis of Cauliflower-Like PtPd@PVF Nanocatalyst for Electrooxidation of Methanol. Hacettepe Journal of Biology and Chemistry, Cilt: 49 - Sayı: 1, 79–91. https://ajindex.com/articles/255857
O. Z. Sharaf and M. F. Orhan, “An overview of fuel cell technology: Fundamentals and applications,” Renew. Sustain. Energy Rev., vol. 32, pp. 810–853, 2014
M. S. Çelebi, “Energy Applications: Fuel Cells,” 2016, pp. 397–434
X. Li and A. Faghri, “Review and advances of direct methanol fuel cells (DMFCs) part I: Design, fabrication, and testing with high concentration methanol solutions,” J. Power Sources, vol. 226, pp. 223–240, 2013
B. C. Ong, S. K. Kamarudin, and S. Basri, “Direct liquid fuel cells: A review,” Int. J. Hydrogen Energy, vol. 42, no. 15, pp. 10142–10157, 2017
H. Liu, C. Song, L. Zhang, J. Zhang, H. Wang, and D. P. Wilkinson, “A review of anode catalysis in the direct methanol fuel cell,” J. Power Sources, vol. 155, no. 2, pp. 95–110, 2006
S. Sharma and B. G. Pollet, “Support materials for PEMFC and DMFC electrocatalysts - A review,” J. Power Sources, vol. 208, pp. 96–119, 2012
S. K. Kamarudin, F. Achmad, and W. R. W. Daud, “Overview on the application of direct methanol fuel cell (DMFC) for portable electronic devices,” Int. J. Hydrogen Energy, vol. 34, no. 16, pp. 6902–6916, 2009
A. M. Zainoodin, S. K. Kamarudin, and W. R. W. Daud, “Electrode in direct methanol fuel cells,” Int. J. Hydrogen Energy, vol. 35, no. 10, pp. 4606–4621, 2010
S. Basri, S. K. Kamarudin, W. R. W. Daud, and Z. Yaakub, “Nanocatalyst for direct methanol fuel cell (DMFC),” Int. J. Hydrogen Energy, vol. 35, no. 15, pp. 7957–7970, 2010
H. Wu et al., “Facile synthesis of Pt/Pd nanodendrites for the direct oxidation of methanol,” Nanotechnology, vol. 25, no. 19, 2014
N. Toshima, H. Yan, and Y. Shiraishi, “Recent Progress in Bimetallic Nanoparticles: Their Preparation, Structures and Functions,” Met. Nanoclusters Catal. Mater. Sci. Issue Size Control, pp. 49–75, 2008
M. Xiao, X. Liang, W. Li, Y. Yang, and Y. Miao, “Synthesis of Ultrafine Pt/Pd Bimetallic Nanoparticles and Their Decoration on MWCNTs for Hydrogen Evolution,” J. Electrochem. Soc., vol. 162, no. 6, pp. H415–H418, 2015
K. An and G. A. Somorjai, “Nanocatalysis I: Synthesis of Metal and Bimetallic Nanoparticles and Porous Oxides and Their Catalytic Reaction Studies,” Catal. Letters, vol. 145, no. 1, pp. 233–248, 2015
H. R. Cho and J. R. Regalbuto, “The rational synthesis of Pt-Pd bimetallic catalysts by electrostatic adsorption,” Catal. Today, vol. 246, pp. 143–153, 2015
M. Wang, Z. Zheng, J. Liu, and C. Wang, “Pt-Pd Bimetallic Nanopartic