Transient evolution of carbon monoxide poisoning effect of PBI membrane fuel cells

Wang, Chien‐Ping; Chu, Hsin‐Sen; Yan, Yinfei; Hsueh, Kan‐Lin

doi:10.1016/j.jpowsour.2007.03.070

Cited by 51 publications

(19 citation statements)

References 18 publications

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“…With the acid-doped PBI electrolytes, the CO poisoning effect has been examined [37]. The transient effect of CO poisoning was modelled and validated with experimental measurements [244].…”

Section: Poisoning Effect Of Co and Sulphurmentioning

confidence: 99%

High temperature proton exchange membranes based on polybenzimidazoles for fuel cells

Jensen

Savinell

et al. 2009

Progress in Polymer Science

1,242

852

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. To achieve high temperature operation of proton exchange membrane fuel cells (PEMFC), preferably under ambient pressure, acid-base polymer membranes represent an effective approach. The phosphoric acid-doped polybenzimidazole membrane seems so far the most successful system in the field. It has in recent years motivated extensive research activities with great progress. This treatise is devoted to updating the development, covering polymer synthesis, membrane casting, physicochemical characterizations and fuel cell technologies. To optimize the membrane properties, high molecular weight polymers with synthetically modified or N-substituted structures have been synthesized. Techniques for membrane casting from organic solutions and directly from acid solutions have been developed. Ionic and covalent cross-linking as well as inorganic-organic composites has been explored. Membrane characterizations have been made including spectroscopy, water uptake and acid doping, thermal and oxidative stability, conductivity, electro-osmotic water drag, methanol crossover, solubility and permeability of gases, and oxygen reduction kinetics. Related fuel cell technologies such as electrode and MEA fabrication have been developed and high temperature PEMFC has been successfully demonstrated at temperatures of up to 200• C under ambient pressure. No gas humidification is mandatory, which enables the elimination of the complicated humidification system, compared with Nafion cells. Other operating features of the PBI cell include easy control of air flow rate, cell temperature and cooling. The PBI cell operating at above 150• C can tolerate up to 1% CO and 10 ppm SO 2 in the fuel stream, allowing for simplification of the fuel processing system and possible integration of the fuel cell stack with fuel processing units. Long-term durability with a degradation rate of 5 V h −1 has been achieved under continuous operation with hydrogen and air at 150-160• C. With load or thermal cycling, a performance loss of 300 V per cycle or 40 V h −1 per operating hour was observed. Further improvement should be done by, e.g. optimizing the thermal and chemical stability of the polymer, acid-base interaction and acid management, activity and stability of catalyst and more importantly the catalyst support, as well as the integral interface between electrode and membrane.

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“…With the acid-doped PBI electrolytes, the CO poisoning effect has been examined [37]. The transient effect of CO poisoning was modelled and validated with experimental measurements [244].…”

Section: Poisoning Effect Of Co and Sulphurmentioning

confidence: 99%

High temperature proton exchange membranes based on polybenzimidazoles for fuel cells

Jensen

Savinell

et al. 2009

Progress in Polymer Science

1,242

852

View full text Add to dashboard Cite

show abstract

“…Furthermore, PBI composites [34][35][36][37][38][39][40] have also been developed to improve the performance and/or stability of PBI membranes. HT-PEMFCs do not require large shift converters or selective oxidizers due to their high CO tolerance, which exceeds 10,000 ppm [31,[41][42][43]. Neither do they require humidifiers, because proton transport in the PEM occurs without water dragging [44,45].…”

Section: Introductionmentioning

confidence: 99%

Influence of the phosphoric acid-doping level in a polybenzimidazole membrane on the cell performance of high-temperature proton exchange membrane fuel cells

Oono¹,

Sounai²,

Hori³

2009

Journal of Power Sources

176

106

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“…Following the EIS results, researchers have developed equivalent circuit models to quantify the effect of impurities such as CO on the fuel cell performance [12], developed a finite two-dimensional model of the electrode structure and of the diffusion process at the interfaces, and fitted the model to the measured polarization curve [13]. Some researchers studied the kinetics of CO coverage as it was adsorbed on the catalyst [14]. These research projects have indicated that CO has a less severe effect on the high temperature PEM fuel cell operation at temperatures between 160 and 200 C compared to low temperature PEM fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modeling and experimental investigation of a high temperature PEM fuel cell stack

Nguyen

Sahlin

Andreasen

et al. 2016

International Journal of Hydrogen Energy

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Transient evolution of carbon monoxide poisoning effect of PBI membrane fuel cells

Cited by 51 publications

References 18 publications

High temperature proton exchange membranes based on polybenzimidazoles for fuel cells

High temperature proton exchange membranes based on polybenzimidazoles for fuel cells

Influence of the phosphoric acid-doping level in a polybenzimidazole membrane on the cell performance of high-temperature proton exchange membrane fuel cells

Dynamic modeling and experimental investigation of a high temperature PEM fuel cell stack

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