Study on PtNWs/c Catalyst for Proton Exchange Membrane Fuel Cell

Abstract:

With the development of PEMFC, the process of commercial fuel cell is also accelerating. As one of the key points of fuel cell, catalyst is facing the problem of how to improve its performance and life. In order to improve the durability of fuel cell catalyst, this paper will study the preparation of Pt nanowire catalyst, so as to improve the electrochemical performance and durability of the catalyst. PtNWs were prepared by soft template method. By TEM, we can clearly see that PtNWs with uniform length were obtained by soft template method. Because of the special structure, the ORR performance of the catalyst was better. The test results showed that the hydrogen peroxide desorption from PtNWs was easier, and the half wave potential of LSV curve shifted forward, which indicated that the NWs catalyst performed better ORR performance. The linear structure of PtNWs is not easy to dissolve and lose compared with Pt particles, and the linear structure is more conducive to the transfer of materials and electrons at the reaction interface, so it can show better performance and life.

• Periodical: Key Engineering Materials (Volume 915)
• Pages: 109-113
• DOI: https://doi.org/10.4028/p-270w63
• Online since: March 2022
• Authors: Han Deng, Lu Lu*, Zhi Peng Zhao, Bing Xu
• Keywords: Durability, PEMFC, Pt Nanowire

References

[1] Antoine O, Bultel Y, Ozil P, et al. Electrocatalysis, diffusion and ohmic drop in PEMFC: Particle size and spatial discrete distribution effects, Electrochimica Acta Vol.45 (2000), pp.3681-3691.

DOI: 10.1016/s0013-4686(98)00126-1

[2] Vielstich W, Lamm A, Gasteiger H A, et al. Handbook of Fuel Cells, Fundamentals Technology and Applications, Gasteiger H. Fuel Vol.83 (2003), p.449.

DOI: 10.1002/9780470974001

[3] Steele B C H. Materials for furl-cell technologies, Journal of Materials Science Vol.36 (2001), pp.345-352.

[4] Frolova L A, Dobrovolsky Y A, Bukun N G.: 2011 Stem cell treatment for patients with autoimmune disease by mesenchymal stem cells, Russian Journal of Electrochemistry Vol.47 (2011) p.181.

[5] Zeyu Yan, Bing Li, Daijun Yang, Jianxin Ma.: Pt nanowire electrocatalysts for proton exchange membrane fuel cells, Chinese Journal of Catalysis Vol.34 (2013), pp.1471-1481.

DOI: 10.1016/s1872-2067(12)60629-9

[6] Du Shangfeng, Pollee, Bruno G. Catalyst loading for Pt-nanowire thin film electrodes in PEFCs, International Journal of Hydrogen Energy, Vol.37 (2012), pp.17892-17898.

DOI: 10.1016/j.ijhydene.2012.08.148

[7] Yin S, Mu S, Pan M et al. Highly Stable TiB2 Supported Pt Electrocatalysts Applied in PEM Fuel Cells, Journal of Power Sources Vol. 196 (2011), pp.7931-7936.

DOI: 10.1016/j.jpowsour.2011.05.033

[8] Yin S, Mu S, Lv H, et al. A Highly Stable Catalyst for PEM Fuel Cell Based on Durable Titanium Diboride Support and Polymer Stabilization, Applied Catalysis B Environmental Vol.93 (2010), pp.233-240.

DOI: 10.1016/j.apcatb.2009.09.034

[9] Zhu W, Ignaszak A, Song C, et al. Metal oxide stabilized platinum-based ORR catalyst, Electrochimica Acta Vol.61 (2012), p.326.

[10] Liu Y, Mustain W E. Importance of Particle Size and Distribution in Achieving High-Activity, High-Stability Oxygen Reduction Catalysts, Acs Catalysis Vol. 1 (2015), p.1560–1567.

DOI: 10.1021/cs501556j