Behavior of a Proton Exchange Membrane Fuel Cell in Reformate Gas

Catalyst degradation under different test and poisoning conditions – Comparison parameters definition to map the effects on proton exchange membrane fuel cell voltage

“…Therefore, even if in the long term the CL kinetics of contamination reaches equilibrium, a higher concentration results in more impact. As shown in Table 2, just in one case it was possible to appreciate the approach of a steady state in the voltage decay [77]. Yet, the results of AST have an impact on both V D and V DR_avg which can reach a 1 or 2‐orders of magnitude difference.…”

Challenges and opportunities for characterisation of high-temperature polymer electrolyte membrane fuel cells: a review

“…199 However, their tolerance for CO is much higher: HT-PEMFCs can withstand CO contents of 3–5% (30 000–50 000 ppm), 34,200 whereas LT-PEMFCs show significant performance decrease around 0.005% (50 ppm). 201,202 Reformate after the water–gas-shift reaction has a typical CO content of 2%. 203 Therefore, HT-PEMFCs have the potential to use reformate fuel directly, whereas LT-PEMFCs cannot without additional cleaning, which adds cost and complexity.…”

Intriguing H2S Tolerance of the PtRu Alloy for Hydrogen Oxidation Catalysis in PEMFCs: Weakened Pt–S Binding with Slower Adsorption Kinetics

“…Hydrogen is regarded as an ideal energy carrier due to its nontoxicity, sustainability, environmental friendliness, and high calorific value, which is suitable to support large-scale power generation of renewable energy and frequency regulation of the auxiliary power grid. The application of proton-exchange membrane fuel cells (PEMFCs) as a power generator for vehicles and residential purpose is crucial to the development of hydrogen energy. − Currently, injecting green hydrogen into the natural gas network is regarded as a promising strategy for hydrogen transportation because the construction of the hydrogen delivery infrastructure or major modifications for the current nature gas pipeline are not needed. , However, trace impurities [e.g., hydrogen sulfide (H 2 S), carbon monoxide (CO), , and organic pollutants , ] are inevitably introduced into the anode H 2 stream of PEMFCs during the hydrogen transportation process. Consequently, the PEMFC anode will be poisoned by these impurities, showing suppressed output cell performance and reduced durability, which is not beneficial for the long-term application of PEMFCs.…”

“…2−4 Currently, injecting green hydrogen into the natural gas network is regarded as a promising strategy for hydrogen transportation because the construction of the hydrogen delivery infrastructure or major modifications for the current nature gas pipeline are not needed. 5,6 However, trace impurities [e.g., hydrogen sulfide (H 2 S), 7 carbon monoxide (CO), 8,9 and organic pollutants 10,11 ] are inevitably introduced into the anode H 2 stream of PEMFCs during the hydrogen transportation process. Consequently, the PEMFC anode will be poisoned by these impurities, showing suppressed output cell performance and reduced durability, which is not beneficial for the long-term application of PEMFCs.…”