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Partial modification of flow-through porous electrodes in microfluidic fuel cell

Author

Listed:
  • Li, Li
  • Zheng, Keqing
  • Ni, Meng
  • Leung, Michael K.H.
  • Xuan, Jin

Abstract

The use of flow-through porous electrodes is identified as a promising approach to enhance the performance of microfluidic fuel cell (MFC). In this study, a dimensionless computational model is developed to analyze the distribution characteristics of the electrochemical reactions in flow-through porous electrodes of MFC. One important finding is that the electrochemical reactions mainly occur in the vicinity of the anode and cathode outlets. Based on this observation, the new design of partial modification at reactive sites is proposed to reduce the MFC cost. It is found that MFC with partial modification can achieve comparable performance with that of conventional full electrode modification, demonstrating the feasibility of partial modification method. The partial modification also offers a promising alternative to avoid unwanted secondary reaction, such as hydrogen evolution.

Suggested Citation

  • Li, Li & Zheng, Keqing & Ni, Meng & Leung, Michael K.H. & Xuan, Jin, 2015. "Partial modification of flow-through porous electrodes in microfluidic fuel cell," Energy, Elsevier, vol. 88(C), pages 563-571.
  • Handle: RePEc:eee:energy:v:88:y:2015:i:c:p:563-571
    DOI: 10.1016/j.energy.2015.05.085
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    Cited by:

    1. Wu, Baoxin & Xu, Xinhai & Dong, Guangzhong & Zhang, Mingming & Luo, Shijing & Leung, Dennis Y.C. & Wang, Yifei, 2024. "Computational modeling studies on microfluidic fuel cell: A prospective review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 191(C).
    2. Li, Li & Wang, Hongkang & Bei, Shaoyi & Li, Yuanjiang & Sun, Yanyun & Zheng, Keqing & Xu, Qiang, 2023. "Unsymmetrical design and operation in counter-flow microfluidic fuel cell: A prospective study," Energy, Elsevier, vol. 262(PB).
    3. Ouyang, Tiancheng & Lu, Jie & Xu, Peihang & Hu, Xiaoyi & Chen, Jingxian, 2022. "High-efficiency fuel utilization innovation in microfluidic fuel cells: From liquid-feed to vapor-feed," Energy, Elsevier, vol. 240(C).
    4. Li, Li & Fan, Wenguang & Xuan, Jin & Leung, Michael K.H. & Zheng, Keqing & She, Yiyi, 2017. "Optimal design of current collectors for microfluidic fuel cell with flow-through porous electrodes: Model and experiment," Applied Energy, Elsevier, vol. 206(C), pages 413-424.
    5. Li, Li & Nikiforidis, Georgios & Leung, Michael K.H. & Daoud, Walid A., 2016. "Vanadium microfluidic fuel cell with novel multi-layer flow-through porous electrodes: Model, simulations and experiments," Applied Energy, Elsevier, vol. 177(C), pages 729-739.
    6. Muhammad Tanveer & Kwang-Yong Kim, 2021. "Flow Configurations of Membraneless Microfluidic Fuel Cells: A Review," Energies, MDPI, vol. 14(12), pages 1-33, June.
    7. Wang, Yifei & Leung, Dennis Y.C. & Zhang, Hao & Xuan, Jin & Wang, Huizhi, 2017. "Numerical and experimental comparative study of microfluidic fuel cells with different flow configurations: Co-flow vs. counter-flow cell," Applied Energy, Elsevier, vol. 203(C), pages 535-548.
    8. Rarotra, Saptak & Shahid, Shaik & De, Mahuya & Mandal, Tapas Kumar & Bandyopadhyay, Dipankar, 2021. "Graphite/RGO coated paper μ-electrolyzers for production and separation of hydrogen and oxygen," Energy, Elsevier, vol. 228(C).
    9. Lan, Qiao & Ye, Dingding & Zhu, Xun & Chen, Rong & Liao, Qiang, 2022. "Enhanced gas removal and cell performance of a microfluidic fuel cell by a paper separator embedded in the microchannel," Energy, Elsevier, vol. 239(PB).

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