FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4282838567> ?p ?o ?g. }

• W4282838567 endingPage "137489" @default.
• W4282838567 startingPage "137489" @default.
• W4282838567 abstract "• A unified catalyst layer design classification criterion is proposed. • A modified agglomerate model considering local oxygen and ionic transport is developed. • Oxygen resistance and local current density jointly decide oxygen concentration. • Dominant loss shifts from concentration loss to activation loss with Pt loading. • More ionomer boosts local membrane dry state and enhances ionic conduction. The main goal of catalyst layer (CL) optimization is decreasing the platinum in proton exchange membrane fuel cells (PEMFCs) without a deterioration in performance; this, however, is hindered by a lack of precise knowledge regarding the cell performance at various CL design criterions. In this study, a modified CL agglomerate model is developed to consider the coupled local oxygen and ionic transport and subsequently incorporated into a multi-phase, non-isothermal PEMFC model. A general classification criterion for CL design is proposed, which is classified into four CL modes: dynamic volume fraction mode, constant ionomer volume fraction mode, constant carbon volume fraction mode, and constant pore volume fraction mode. The respective contribution of local oxygen and ionic transport under four CL design modes are elucidated. It is found that the oxygen concentration at Pt surface is determined by oxygen transport resistance and local current density, and their impacts are synergetic. For fixed platinum/carbon and ionomer/carbon ratios, an increase in Pt loading results in a decrease in the ohmic loss by improving the ionic transport capacity. On the condition of fixing the volume fraction of each CL composition, the ionic conduction essentially remains unchanged as the Pt loading, whereas the oxygen transfer is enhanced. There exists a threshold value, beyond which the dominant loss shifts from concentration loss to activation loss with an increase in Pt loading. An increase in the ionomer and carbon volume fractions help improve the local membrane hydration, whereas a high porosity facilitates the oxygen concentration at Pt surface. This study is expected to provide deeper insights into CL design and performance optimization for PEMFCs." @default.
• W4282838567 created "2022-06-15" @default.
• W4282838567 creator A5045266688 @default.
• W4282838567 creator A5049448558 @default.
• W4282838567 creator A5072977110 @default.
• W4282838567 creator A5082505917 @default.
• W4282838567 date "2022-11-01" @default.
• W4282838567 modified "2023-10-16" @default.
• W4282838567 title "A unified catalyst layer design classification criterion on proton exchange membrane fuel cell performance based on a modified agglomerate model" @default.
• W4282838567 cites W1612460362 @default.
• W4282838567 cites W2000480774 @default.
• W4282838567 cites W2008932415 @default.
• W4282838567 cites W2034142852 @default.
• W4282838567 cites W2042204086 @default.
• W4282838567 cites W2080039209 @default.
• W4282838567 cites W2099386213 @default.
• W4282838567 cites W2296143349 @default.
• W4282838567 cites W2323855798 @default.
• W4282838567 cites W2610145886 @default.
• W4282838567 cites W2729338752 @default.
• W4282838567 cites W2751803069 @default.
• W4282838567 cites W2760263937 @default.
• W4282838567 cites W2789300120 @default.
• W4282838567 cites W2796444718 @default.
• W4282838567 cites W2799287571 @default.
• W4282838567 cites W2800497887 @default.
• W4282838567 cites W2811425187 @default.
• W4282838567 cites W2917617139 @default.
• W4282838567 cites W2965234081 @default.
• W4282838567 cites W2966572905 @default.
• W4282838567 cites W2972666149 @default.
• W4282838567 cites W2972756978 @default.
• W4282838567 cites W2989582120 @default.
• W4282838567 cites W2991341892 @default.
• W4282838567 cites W2995257058 @default.
• W4282838567 cites W3013228126 @default.
• W4282838567 cites W3027497875 @default.
• W4282838567 cites W3031530956 @default.
• W4282838567 cites W3034299505 @default.
• W4282838567 cites W3046424320 @default.
• W4282838567 cites W3047049188 @default.
• W4282838567 cites W3047562049 @default.
• W4282838567 cites W3089663900 @default.
• W4282838567 cites W3093379551 @default.
• W4282838567 cites W3093406260 @default.
• W4282838567 cites W3094653379 @default.
• W4282838567 cites W3104508821 @default.
• W4282838567 cites W3125487225 @default.
• W4282838567 cites W3127983906 @default.
• W4282838567 cites W3131063971 @default.
• W4282838567 cites W3131833873 @default.
• W4282838567 cites W3137258066 @default.
• W4282838567 cites W3152641702 @default.
• W4282838567 cites W3161160299 @default.
• W4282838567 cites W3164219743 @default.
• W4282838567 cites W3179655436 @default.
• W4282838567 cites W4205750675 @default.
• W4282838567 cites W4214587055 @default.
• W4282838567 doi "https://doi.org/10.1016/j.cej.2022.137489" @default.
• W4282838567 hasPublicationYear "2022" @default.
• W4282838567 type Work @default.
• W4282838567 citedByCount "7" @default.
• W4282838567 countsByYear W42828385672023 @default.
• W4282838567 crossrefType "journal-article" @default.
• W4282838567 hasAuthorship W4282838567A5045266688 @default.
• W4282838567 hasAuthorship W4282838567A5049448558 @default.
• W4282838567 hasAuthorship W4282838567A5072977110 @default.
• W4282838567 hasAuthorship W4282838567A5082505917 @default.
• W4282838567 hasConcept C127413603 @default.
• W4282838567 hasConcept C129955480 @default.
• W4282838567 hasConcept C132319479 @default.
• W4282838567 hasConcept C159985019 @default.
• W4282838567 hasConcept C161790260 @default.
• W4282838567 hasConcept C178790620 @default.
• W4282838567 hasConcept C185592680 @default.
• W4282838567 hasConcept C192562407 @default.
• W4282838567 hasConcept C21880701 @default.
• W4282838567 hasConcept C2779227376 @default.
• W4282838567 hasConcept C2987658370 @default.
• W4282838567 hasConcept C41625074 @default.
• W4282838567 hasConcept C42360764 @default.
• W4282838567 hasConcept C55493867 @default.
• W4282838567 hasConceptScore W4282838567C127413603 @default.
• W4282838567 hasConceptScore W4282838567C129955480 @default.
• W4282838567 hasConceptScore W4282838567C132319479 @default.
• W4282838567 hasConceptScore W4282838567C159985019 @default.
• W4282838567 hasConceptScore W4282838567C161790260 @default.
• W4282838567 hasConceptScore W4282838567C178790620 @default.
• W4282838567 hasConceptScore W4282838567C185592680 @default.
• W4282838567 hasConceptScore W4282838567C192562407 @default.
• W4282838567 hasConceptScore W4282838567C21880701 @default.
• W4282838567 hasConceptScore W4282838567C2779227376 @default.
• W4282838567 hasConceptScore W4282838567C2987658370 @default.
• W4282838567 hasConceptScore W4282838567C41625074 @default.
• W4282838567 hasConceptScore W4282838567C42360764 @default.
• W4282838567 hasConceptScore W4282838567C55493867 @default.
• W4282838567 hasFunder F4320321001 @default.
• W4282838567 hasFunder F4320336035 @default.

• next