Potentiostatic Electrodeposition of Pt-Fe Alloy Catalyst and Application in PEMFC Cathode

doi:10.3724/SP.J.1077.2013.13118

Abstract

Abstract: Pt-Fe alloy for proton exchange membrane fuel cell (PEMFC) cathode catalyst was prepared on the porous carbon cloth by electrodeposition under the constant voltage. The reduction potential was determined by cyclic voltammetry (CV). The physical and electrochemical performances of catalysts were characterized by X-ray difffraction (XRD), scanning electron microscope (SEM), field emission scanning electron microscope (FESEM), energy dispersive spectrograph (EDS), cyclic voltammetry (CV), single cell polarization test and in-situ electrochemical impedance spectroscopy (EIS) technique. The results show that the highly-dispersed Pt-Fe alloy catalyst is obtained by electrodeposition at 0.075 V. The electrodeposition time has remarkable effect on the compositions of Pt-Fe alloy. The ratio of Pt to Fe increases with the co-deposition time. Fe can sufficiently improve the catalytic activity of Pt for oxygen reduction reaction (ORR). Pt-Fe alloy catalyst electrodeposited for 30 min shows better catalytic activity for ORR than pure Pt catalyst.

Key words: cyclic voltammetry, reduction potential, Pt-Fe alloy, oxygen reduction, proton exchange membrane fuel cell

CLC Number:

TM911

ZHAO Wen-Wen, ZHANG Hua, LI Mei. Potentiostatic Electrodeposition of Pt-Fe Alloy Catalyst and Application in PEMFC Cathode[J]. Journal of Inorganic Materials, 2013, 28(11): 1217-1222.

References

[1] Yun W, Ken S C, Jeffrey M, et al. A review of polymer electrolyte membrane fuel cells: technology, applications, and needs on fundamental research. Appl. Energy, 2011, 88(4): 981-1007.

[2] Daniel G, Yolanda L, Cristina D L R. Polymer electrolyte membrane fuel cells (PEMFC) in automotive applications: environmental relevance of the manufacturing stage. Smart Grid Renewable Energy, 2011, 2(2): 68-74.

[3] Surbhi S, Bruno G P. Support materials for PEMFC and DMFC electrocatalysts—A review. J. Power Sources, 2012, 208(12): 96-119.

[4] FU Rong, ZHENG Jun-Sheng, WANG Zhao-Xi, et al. Effect of the reduction heat-treatment condition on the performance of Pt-Fe/C alloy catalyst. Acta Phys. Chim. Sin., 2011, 27(9): 2141-2147.

[5] 原霞. 铂系双金属(Pt/M, M:Fe,Co,Ni)纳米催化材料的化学可控合成及性能表征. 济南: 山东大学硕士论文, 2009.

[6] Kim J H, Seung W L, Christopher C, et al. Oxygen reduction activity of PtxNi1-x alloy nanoparticles on multiwall carbon nanotubes. Electrochem. Solid-State Lett., 2011, 14(10): B110-B113.

[7] ZHANG Xi-Gui, WANG Tao, XIA Bao-Jia, et al. Study on oxygen electrode of PEMFC—effect of Ni, Co on properties of Pt/C electro- catalyst. J. Fuel Chem. Technol., 2003, 31(5): 411-414.

[8] Takako T, Hiroshi I, Masahiro W. Enhancement of the electrocatalytic O2 reduction on Pt-Fe alloys. J. Electroanal. Chem., 1999, 460(1/2): 258-262.

[9] Stephens E L, Alexander S B, Ulrik G, et al. Understanding the electrocatalysis of oxygen reduction on platinum and its alloys. Energy Environ. Sci., 2012, 5(5): 6744-6762.

[10] Seung J H, Sung J Y, Soohwan J, et al. Ternary Pt-Fe-Co alloy electrocatalysts prepared by electrodeposition: elucidating the roles of Fe and Co in the oxygen reduction reaction. J. Phys. Chem. C, 2011, 115(5): 2483-2488.

[11] Jayasayee K, Van Veen J A R, Thirugnasambandam G M, et al. Oxygen reduction reaction (ORR) activity and durability of carbon supported PtM (Co, Ni, Cu) alloys: Influence of particle size and non-noble metals. Appl. Catal. B, 2012, 111-112: 515-526.

[12] Martínez-Casillasa D C, Solorza-Feria O. Sonochemical preparation of PdCu as oxygen reduction nanocatalyst for PEMFC. ECS Trans., 2011, 36(1): 565-571.

[13] ZHAO Wen-Wen, YANG Yong, ZHANG Hua. Preparation of the Pt-HxWO3 electrode and electro-catalysis for hydrogen oxidation. Chinese J. Inorg. Chem., 2012, 28(2): 314-320.

[14] WU Yan-Bo, WU Xiao-Xin, XU Hong-Feng, et al. The study on the dynamic response performance of PEMFC with electrodeposited RuO2-xH2O-Pt/C electrode. J. Nat. Gas Chem., 2011, 20(3): 256-260.

[15] Wee J H, Lee K Y, Kim H K. Fabrication methods for low-Pt-loading electrocatalysts in proton exchange membrane fuel cell systems. J. Power Sources, 2007, 165(2): 667-677.

[16] Mallett J J, Svedberg E B, Sayan S, et al. Compositional control in electrodeposition of FePt films. Electrochem. Solid-State Lett., 2004, 7(10): C121-C124.

[17] 史世毅. 电化学法制备FePt薄膜. 兰州: 兰州理工大学硕士论文, 2011.

[18] 屠振密, 李宁, 安茂忠, 王素琴. 电镀合金实用技术. 北京: 国防工业出版社, 2007: 44-47.

[19] DU Jun-Hua, LI Wei-Shan, LI Hong, et al. Electrocatalytic oxidation of methanol on platinum electrode modified by hydrogen molybdenum bronze. Fine Chem., 2002, 19(10): 571-574.

[20] 廖明佳. 超低Pt及合金燃料电池催化剂的研究. 重庆: 重庆大学硕士论文, 2009.

[21] Myoung-ki M, Jihoon C, Kyuwoong C, et al. Particle size and alloying effects of Pt-based alloy catalysts for fuel cell applications. Electrochim. Acta, 2000, 45(25/26): 4211-4217.