نتایج جستجو برای: polymer electrolyte membrane fuel cell pemfc
تعداد نتایج: 2068831 فیلتر نتایج به سال:
The mechanical loads that gas diffusion layers (GDLs) withstand in polymer electrolyte membrane fuel cell (PEMFC) stacks are sensitive to the assembly and working conditions. properties of GDLs mostly depend on their composition materials, microstructural characteristics, operation conditions, etc. An accurate comprehensive understanding performance is significant for predicting stress distribu...
In this study, the effects of flow field types on electrochemical properties polymer electrolyte membrane fuel cells (PEMFCs) humidified with NaCl solution are systematically investigated. The parallel and serpentine were used to investigate PEMFCs. Long-term stability was evaluated for 20 h using chronoamperometry. Fuel both fields showed a decrease in performance because solution. Interesting...
The polymer electrolyte membrane fuel cell is a power source with the potential for reducing green-house gas emissions. Characterizing the electrolyte of a fuel cell is an important procedure for assessing the performance of the entire device. Atomic force microscopy (AFM) is one of the major instruments for such characterization, since it can be used for determining the surface potential and/o...
Polymer Electrolyte Membrane Fuel Cells (PEMFC) are currently considered the most advanced fuel cell technology. However, industrial implementation of PEMFCs is strongly hindered by deficient durability, especially that carbonaceous materials commonly used to support platinum-based catalyst nanoparticles, which prone electrochemical corrosion at cathode, resulting in a serious performance loss ...
The development of innovative technologies based on employing green energy carriers, such as hydrogen, is becoming high in demand, especially the automotive sector, a result challenges associated with sustainable mobility. In present review, detailed overview entire hydrogen supply chain proposed, spanning from its production to storage and final use cars. Notably, main focus Polymer Electrolyt...
This paper presents an overview of the synthesis, chemical and electrochemical properties, and polymer electrolyte fuel cell applications of new proton-conducting polymer electrolyte membranes based on hydrocarbon polymers. Due to their chemical stability, high degree of proton conductivity, and remarkable mechanical properties, per ̄uorinated polymer electrolytes such as Na®on, Aciplex, Flemion...
Proton transfer in polymer electrolyte membrane is an essential mechanism fuel cell (PEMFC). The development of PEM mostly relies on modification with proton conductive species followed by casting. This brings the random existence to result a limit conductivity. present work proposes alignment species, i.e., donor and acceptor chains, through surface-initiated polymerization so that proceeds ef...
As a hopeful solution to help the shipping sector achieve greenhouse gas (GHG) abatement goal of IMO by 2050, application hydrogen-powered ships has attracted more and attention. To solve problem hydrogen supplement for offshore polymer electrolyte membrane fuel cell (PEMFC) ships, this paper presents scenario design integrated coastal wind power, analyzes its techno-economic feasibility. This ...
The proton exchange membrane (PEMFC) fuel cell represents the energy of the future, in parallel with hydrogen. However, this technology must meet many technical challenges related to performance and durability before being sold on a large scale. It is well known that these challenges are closely linked to water management. This paper develops and implements a model of PEM fuel for simulation to...
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