PEMFC systems: the need for high temperature polymers as a consequence of PEMFC water and heat management

Mallant, Ronald K. A. M.

doi:10.1016/s0378-7753(03)00108-3

Cited by 71 publications

(32 citation statements)

References 2 publications

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“…Especially for electrochemical reactions, a catalyst is referred to as an electrocatalyst, which is an essential material in a MEA to produce the electron and proton as a result of the hydrogen oxidation reaction (HOR) involving the anode and water from oxygen caused by the oxidation reduction reaction (ORR) of the cathode for a PEMFC to reduce the overpotentials in the following Equations (1)(2)(3) …”

Section: Catalystmentioning

confidence: 99%

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Design and Synthesis of Cross-Linked Copolymer Membranes Based on Poly(benzoxazine) and Polybenzimidazole and Their Application to an Electrolyte Membrane for a High-Temperature PEM Fuel Cell

et al. 2013

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Elevated-temperature (100~200 °C) polymer electrolyte membrane (PEM) fuel cells have many features, such as their high efficiency and simple system design, that make them ideal for residential micro-combined heat and power systems and as a power source for fuel cell electric vehicles. A proton-conducting solid-electrolyte membrane having high conductivity and durability at elevated temperatures is essential, and phosphoric-acid-containing polymeric material synthesized from cross-linked polybenzoxazine has demonstrated feasible characteristics. This paper reviews the design rules, synthesis schemes, and characteristics of this unique polymeric material. Additionally, a membrane electrode assembly (MEA) utilizing this polymer membrane is evaluated in terms of its power density and lifecycle by an in situ accelerated lifetime test. This paper also covers an in-depth discussion ranging from the polymer material design to the cell performance in consideration of commercialization requirements. OPEN ACCESSPolymers 2013, 5 78

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Section: Catalystmentioning

confidence: 99%

“…There has been some interest in phosphoric-acid-based PEMFC systems because they do not require humidification, and offer high tolerance to CO [2,3]. These advantages can simplify the fuel cell system design by removing the humidifier and adapting a simpler reformer.…”

Section: Introductionmentioning

confidence: 99%

Design and Synthesis of Cross-Linked Copolymer Membranes Based on Poly(benzoxazine) and Polybenzimidazole and Their Application to an Electrolyte Membrane for a High-Temperature PEM Fuel Cell

et al. 2013

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“…> 150°C) offer the promise of improving PEM fuel cell operation. Higher operating temperatures would provide several benefits including: (i) improved resistance to carbon monoxide poisoning of the platinum (Pt) electrocatalyst at the anode, [1][2][3] (ii) reduced need for feed-stream heat and humidity management, [4,5] and (iii) faster reaction kinetics at both electrodes. [6,7] Reforming of natural gas and other hydrocarbons provides a hydrogen feed stream that typically contains ∼ 10 % CO, with subsequent water-gas shift and preferential CO oxidation reactions able to reduce the concentration down to ∼ 10 ppm CO. [5,8] However, carbon monoxide levels as low as 10 ppm can interfere with H 2 adsorption on the dispersed Pt catalyst at the anode, detrimentally affecting the performance of PEM fuel cells operating at temperatures below 100°C.…”

mentioning

confidence: 99%

Acid‐Functionalized Mesostructured Aluminosilica for Hydrophilic Proton Conduction Membranes

Athens¹,

Ein‐Eli²,

Chmelka³

2007

Advanced Materials

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“…Modeling and analysis of BOP systems, such as the air supply unit [22] and the heat/water management unit [23] that affects the operating parameters of the cell stack, are also very important. In particular, the air supply unit is the most critical BOP system because it determines the working conditions of the fuel cell stack.…”

Section: Introductionmentioning

confidence: 99%

Analysis of operating characteristics of a polymer electrolyte membrane fuel cell coupled with an air supply system

Myung

Kim

2011

J Mech Sci Technol

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Balance-of-plant components, especially the air supply system, have a critical impact on the operating condition, performance, and reliability of polymer electrolyte fuel cells (PEMFCs). Thus, we investigated the performance and operating characteristics of a coupled system integrating a PEMFC and an air supply unit. The performance characteristics of the fuel cell stack were modeled using a semiexperimental correlation, and the operating characteristics of a shell-and-tube type membrane humidifier was modeled using heat and mass transfer principles. The models of both components were validated. A turbo-blower determined the condition of the air supplied to the humidifier and its characteristics were modeled using a performance map. A program was developed to simulate the operation of a PEMFC system consisting of the fuel cell stack and the air supply unit, and its operating characteristics at various conditions were investigated. In particular, the effects of operating conditions (ambient temperature and load) on the performance of both the humidifier and the fuel cell stack were examined, and the variations of critical operating parameters were analyzed.

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PEMFC systems: the need for high temperature polymers as a consequence of PEMFC water and heat management

Cited by 71 publications

References 2 publications

Design and Synthesis of Cross-Linked Copolymer Membranes Based on Poly(benzoxazine) and Polybenzimidazole and Their Application to an Electrolyte Membrane for a High-Temperature PEM Fuel Cell

Design and Synthesis of Cross-Linked Copolymer Membranes Based on Poly(benzoxazine) and Polybenzimidazole and Their Application to an Electrolyte Membrane for a High-Temperature PEM Fuel Cell

Acid‐Functionalized Mesostructured Aluminosilica for Hydrophilic Proton Conduction Membranes

Analysis of operating characteristics of a polymer electrolyte membrane fuel cell coupled with an air supply system

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