DOI QR코드

DOI QR Code

Autoxidation Core@Anti-Oxidation Shell Structure as a Catalyst Support for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cell

  • Heo, Yong-Kang (Advanced Research Team, Hyundai Steel) ;
  • Lee, Seung-Hyo (Department of Ocean Advanced Materials Convergence Engineering, Korea Maritime and Ocean University)
  • 투고 : 2022.06.27
  • 심사 : 2022.06.30
  • 발행 : 2022.11.02

초록

Proton exchange membrane fuel cells (PEMFCs) provide zero emission power sources for electric vehicles and portable electronic devices. Although significant progresses for the widespread application of electrochemical energy technology have been achieved, some drawbacks such as catalytic activity, durability, and high cost of catalysts still remain. Pt-based catalysts are regarded as the most efficient catalysts for sluggish kinetics of oxygen reduction reaction (ORR). However, their prohibitive cost limits the commercialization of PEMFCs. Therefore, we proposed a NiCo@Au core shell structure as Pt-free ORR electrocatalyst in PEMFCs. NiCo alloy was synthesized as core to introduce ionization tendency and autoxidation reaction. Au as a shell was synthesized to prevent oxidation of core NiCo and increase catalytic activity for ORR. Herein, we report the synthesis, characterization, electrochemical properties, and PEMFCs performance of the novel NiCo@Au core-shell as a catalyst for ORR in PEMFCs application. Based on results of this study, possible mechanism for catalytic of autoxidation core@anti-oxidation shell in PEMFCs is suggested.

키워드

과제정보

This work was supported by the Korea Maritime And Ocean University Research Fund.

참고문헌

  1. M. Z. Jacobson, W. G. Colella, and D. M. Golden, Cleaning the air and improving health with hydrogen fuel-cell vehicles, Science, 308, 1901 (2005). Doi: https://doi.org/10.1126/science.1109157
  2. Paola Costamagna and Supramaniam Srinivasan, Quantum jumps in the PEMFC science and technology from the 1960s to the year 2000: Part II. Engineering, technology development and application aspects, Journal of power sources, 102, 253 (2001). Doi: https://doi.org/10.1016/S0378-7753(01)00808-4
  3. Hubert A. Gasteiger, Shyam S. Kocha, Bhaskar Sompalli, Frederick T. Wagner, Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs, Applied Catalysis B: Environmental, 56, 9 (2005). Doi: https://doi.org/10.1016/j.apcatb.2004.06.021
  4. Alexey Serov and Chan Kwak, Review of non-platinum anode catalysts for DMFC and PEMFC application, Applied Catalysis B: Environmental, 90, 313 (2009). Doi: https://doi.org/10.1016/j.apcatb.2009.03.030
  5. Lei Zhang, Jiujun Zhang, David P. Wilkinson, Haijiang Wang, Progress in preparation of non-noble electrocatalysts for PEM fuel cell reactions, Journal of Power Sources, 156, 171 (2006). Doi: https://doi.org/10.1016/j.jpowsour.2005.05.069
  6. Liming Dai, Yuhua Xue, Liangti Qu, Hyun-Jung Choi, and Jong-Beom Baek, Metal-free catalysts for oxygen reduction reaction, Chemical reviews, 115, 4823 (2015). Doi: https://doi.org/10.1021/cr5003563
  7. Jin Luo, Lingyan Wang, Derrick Mott, Peter N. Njoki, Yan Lin, Ting He, Zhichuan Xu, Bridgid N. Wanjana, I. - Im S. Lim, Chuan-Jian Zhong, Core/shell nanoparticles as electrocatalysts for fuel cell reactions, Advanced Materials, 20, 4342 (2008). Doi: https://doi.org/10.1002/adma.200703009
  8. Minhua Shao, Electrocatalysis in fuel cells: a non-and low-platinum approach, Vol. 9. Springer Science & Business Media, London (2013). Doi: https://doi.org/10.1007/978-1-4471-4911-8
  9. Ye Zhang, Qinghong Huang, Zhiqing Zou, Jingfei Yang, Walter Vogel, and Hui Yang, Enhanced durability of Au cluster decorated Pt nanoparticles for the oxygen reduction reaction, The Journal of Physical Chemistry C, 114, 6860 (2010). Doi: https://doi.org/10.1021/jp100559g
  10. Xi Liu, Yulia Ryabenkova, and Marco Conte, Catalytic oxygen activation versus autoxidation for industrial applications: a physicochemical approach, Physical Chemistry Chemical Physics, 17, 715 (2015). Doi: https://doi.org/10.1039/C4CP03568B