Effects of reformate on performance of PBI/H3PO4 proton exchange membrane fuel cell stack |
| |
| Affiliation: | 1. Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan;2. Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei University of Technology, Taipei 10608, Taiwan;3. Department of Greenergy, National University of Tainan, Tainan, Taiwan;4. Department of Mechanical and Energy Engineering, National Chiayi University, Chiayi 60004, Taiwan;5. Metamaterials for Mechanical, Biomechanical and Multiphysical Applications Research Group, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;6. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;1. Department of Industrial Chemistry, Alagappa University, Karaikudi, 630006, India;2. Central Instrumentation Facility, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, 630006, India;1. University of Stuttgart, Institute of Chemical Process Engineering, Stuttgart, Germany;2. North-West-University, Chemical Resource Beneficiation, Potchefstroom Campus, Potchefstroom, South Africa;1. Department of Materials and Production, Aalborg University, Skjernvej 4a, 9220 Aalborg, Denmark;2. Research & Development, SerEnergy A/S, Lyngvej 8, 9000 Aalborg, Denmark;1. Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560 029, India;2. Department of Mechanical Engineering, St. Joseph Engineering College (Affiliated to Visvesvaraya Technological University, Belagavi) Vamanjoor, Mangaluru, 575 028, India |
| |
| Abstract: | The present study aims to examine the effect of nitrogen and carbon monoxide concentrations as well as the working temperature and the stoichiometry number on the performance of a self-made five-cell high-temperature Proton-exchange membrane fuel cell stack (PEMFC). The concentration of hydrogen in a reformed gas can be varied, and it may contain poisonous substances such as carbon monoxide. Hence, the composition of the fuel gas could affect the performance of the PEMFC. The polarization curve and the electrochemical impedance spectrogram are utilized to examine the behaviors of PEMFC. The cell temperature of 160 °C is found as an optimal working temperature in this study for high-temperature PEMFC. Measured results show that the stoichiometry of the anode gas has a minimal effect on the PEMFC performance. A high percentage of nitrogen makes hydrogen dilute and leads to poor cell performance. When carbon dioxide exceeds 3%, the pt-catalyst was covered with the CO and the cell performance significantly decreased. Finally, a raise of the PEMFC temperature boosted the catalyst energy and improved the detachment of the carbon monoxide and eventually enhanced carbon monoxide tolerance. |
| |
| Keywords: | Carbon monoxide poisoning Electrochemical AC impedance High-temperature proton exchange membrane fuel cell Nitrogen concentration Operating temperature |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
