Utilization and positive effects of produced CO2 on the performance of a passive direct methanol fuel cell with a composite anode structure

被引:13
作者
Chen, Wenjun [1 ]
Yuan, Wei [1 ]
Ye, Guangzhao [1 ]
Han, Fuchang [1 ]
Tang, Yong [1 ]
机构
[1] South China Univ Technol, Sch Mech & Automot Engn, Guangdong Engn Res Ctr Green Mfg Energy Saving &, Guangzhou 510640, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
CO2; behavior; Passive direct methanol fuel cell; Visualization; Composite structure; Porous metal fiber sintered felt; Methanol crossover; 2-PHASE FLOW; MICRO-DMFC; VISUALIZATION; BUBBLES; CROSSOVER; CHANNELS; REMOVAL; FIELDS; PLATE;
D O I
10.1016/j.ijhydene.2017.05.063
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study investigates the CO2 behavior and its effect on the performance of a passive direct methanol fuel cell (DMFC) by use of visualization method. Different flow field designs are introduced to the anode of the DMFC. The parallel-fence structure and the new composite structure with a sintered porous metal fiber felt (SPMFF) are experimentally compared in terms of the cell performance and mechanisms of reactant and product managements. Results show that the cell based on the composite structure yields the best performance during high-concentration operation. The vertical parallel-fence structure is more suitable at a lower methanol concentration. The visualization tests indicate that the use of a composite structure can help enhance convection due to CO2 self-promoting behavior and also enhance gas storage in the channel to control the methanol concentration. The presence of CO2 helps to restrain methanol crossover, which should be actively controlled to enhance internal convection and thereby improve the cell performance. The use of a composite structure enables the cell to perform stably for continuous operation at a higher methanol concentration. The open-circuit and dynamic characteristics of this composite-structure-based DMFC are also evaluated in this study. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:15613 / 15622
页数:10
相关论文
共 32 条
  • [1] DMFC employing a porous plate for an efficient operation at high methanol concentrations
    Abdelkareem, Mohammad Ali
    Nakagawa, Nobuyoshi
    [J]. JOURNAL OF POWER SOURCES, 2006, 162 (01) : 114 - 123
  • [2] Novel method for investigation of two-phase flow in liquid feed direct methanol fuel cells using an aqueous H2O2 solution
    Bewer, T
    Beckmann, T
    Dohle, H
    Mergel, J
    Stolten, D
    [J]. JOURNAL OF POWER SOURCES, 2004, 125 (01) : 1 - 9
  • [3] Investigation of the effect of CO2 bubbles and slugs on the performance of a DMFC by means of laser-optical flow measurements
    Burgmann, Sebastian
    Blank, Mirja
    Wartmann, Jens
    Heinzel, Angelika
    [J]. FUEL CELLS 2012 SCIENCE & TECHNOLOGY - A GROVE FUEL CELL EVENT, 2012, 28 : 88 - 101
  • [4] Assessment of CO2 bubble generation influence on direct methanol fuel cell performance
    Calabriso, Andrea
    Borello, Domenico
    Cedola, Luca
    Del Zotto, Luca
    Santori, Simone Giovanni
    [J]. CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE, 2015, 75 : 1996 - 2002
  • [5] A self-regulated passive fuel-feed system for passive direct methanol fuel cells
    Chan, Y. H.
    Zhao, T. S.
    Chen, R.
    Xu, C.
    [J]. JOURNAL OF POWER SOURCES, 2008, 176 (01) : 183 - 190
  • [6] Micro direct methanol fuel cell: functional components, supplies management, packaging technology and application
    Chen, Xueye
    Zhang, Zhen
    Shen, Jienan
    Hu, Zengliang
    [J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2017, 41 (05) : 613 - 627
  • [7] Numerical simulations of anode two-phase flow in Micro-DMFC using the volume of fluid method
    Falcao, D. S.
    Pereira, J. P.
    Pinto, A. M. F. R.
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (43) : 19724 - 19730
  • [8] Effect of stainless steel meshes on the performance of passive micro direct methanol fuel cells
    Falcao, D. S.
    Pereira, J. P.
    Pinto, A. M. F. R.
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (31) : 13859 - 13867
  • [9] Effect of non-uniform parallel channel on performance of passive direct methanol fuel cell
    Gholami, Omid
    Imen, S. Javad
    Shakeri, Mohsen
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (08) : 3395 - 3400
  • [10] Transient analysis of passive vapor-feed DMFC fed with neat methanol
    Guo, Ting
    Sun, Jing
    Zhang, Junfeng
    Deng, Hao
    Xie, Xu
    Jiao, Kui
    Huang, Xuri
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2017, 42 (05) : 3222 - 3239