scholarly journals A noble metal-free proton-exchange membrane fuel cell based on bio-inspired molecular catalysts

2015 ◽  
Vol 6 (3) ◽  
pp. 2050-2053 ◽  
Author(s):  
P. D. Tran ◽  
A. Morozan ◽  
S. Archambault ◽  
J. Heidkamp ◽  
P. Chenevier ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Noble Metal ◽  
Proton Exchange Membrane ◽  
Polymer Electrolyte Membrane ◽  
Proton Exchange ◽  
Hydrogen Fuel Cell ◽  
Metal Free ◽  
Electrolyte Membrane ◽  
Molecular Catalysts ◽  
Exchange Membrane

Bio-inspired chemistry allowed for the development of the first noble metal-free polymer electrolyte membrane hydrogen fuel cell (PEMFC). The device proved operational under technologically relevant conditions.

scholarly journals Simulation of Fuel Cell Technology Using Matlab

2018 ◽  
Vol 7 (3.27) ◽  
pp. 80
Author(s):  
G Sheebha Jyothi ◽  
Y Bhaskar Rao
Keyword(s):  
Mathematical Model ◽  
Fuel Cell ◽  
Energy Supply ◽  
Proton Exchange Membrane ◽  
Polymer Electrolyte Membrane ◽  
Electrical Energy ◽  
Fast Response ◽  
Proton Exchange ◽  
Electrolyte Membrane ◽  
Exchange Membrane

This paper represents a mathematical model for proton exchange membrane fuel cell(PEMFC)system. Proton exchange membrane fuel cell (also called polymer Electrolyte Membrane fuel cells(PEM)) provides a continuous electrical energy supply from fuel at high levels of efficiency and power density. PEMs provide a solid, corrosion free electrolyte, a low running temperature, and fast response to power.  

Endoreversible modeling of a PEM fuel cell

2015 ◽  
Vol 40 (4) ◽  
Author(s):  
Katharina Wagner ◽  
Karl Heinz Hoffmann
Keyword(s):  
Fuel Cell ◽  
Power Output ◽  
Proton Exchange Membrane ◽  
Polymer Electrolyte Membrane ◽  
Electrical Energy ◽  
Proton Exchange ◽  
Functional Dependencies ◽  
Electrolyte Membrane ◽  
Exchange Membrane ◽  
Cell Data

AbstractFuel cells are known for high efficiencies in converting chemical energy into electrical energy. Nonetheless, the processes taking place in a fuel cell still possess a number of irreversibilities that limit the power output to values below the reversible limit. To analyze these, we developed a model that captures the main irreversibilities occurring inside a proton exchange membrane or polymer electrolyte membrane fuel cell. We used the methods of endoreversible thermodynamics, which enable us to study the entropy production of the different sources of irreversibility in detail. Additionally, performance measures like efficiency and power output can be calculated with such a model, and the influence of different parameters, such as temperature and pressure, can be easily investigated. The comparison of the model predictions with realistic fuel cell data shows that the functional dependencies of the fuel cell characteristics can be captured quite well.

Experimental analysis of a dimensionless number in the cathode channels of a polymer electrolyte membrane fuel cell with different head losses

2009 ◽  
Vol 224 (1) ◽  
pp. 95-108 ◽  
Author(s):  
S H Han ◽  
K R Kim ◽  
D K Ahn ◽  
Y D Choi
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Polymer Electrolyte Membrane ◽  
Proton Exchange ◽  
Dimensionless Number ◽  
Cell Temperature ◽  
Electrolyte Membrane ◽  
Head Losses ◽  
Temperature And Pressure ◽  
Exchange Membrane

This study investigates the effects of stoichiometry, humidity, cell temperature, and pressure on the performance and the flooding of the proton exchange membrane fuel cell. Values of stoichiometry are 1.5, 2.0, and 2.5 at cell temperatures of 50, 55, and 60 °C, respectively. This study shows that the dimensionless flooding value (FV) is a function of the stoichiometry, humidity, temperature, and pressure. The FV is calculated by using the measured values of temperature, humidity, pressure, and flowrate of the cathode. The effect of the dimensionless number on the flooding of the cathode in the proton exchange membrane fuel cell is analysed in this study. The effects of air stoichiometry, cell temperature, and air humidity are also discussed in this article.

Design Models of Polymer Electrolyte Membrane Fuel Cell System

2010 ◽  
Vol 447-448 ◽  
pp. 554-558
Author(s):  
Mulyazmi ◽  
Wan Ramli Wan Daud ◽  
Edy Herianto Majlan
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Computational Models ◽  
Polymer Electrolyte Membrane ◽  
Cell System ◽  
Proton Exchange ◽  
Water Management System ◽  
Electrolyte Membrane ◽  
Exchange Membrane ◽  
System Water

One important aspect to develop fuel cell design is to use the concept of computational models. Mathematical modeling can be used to help research complex, estimates the optimal performance of fuel cells stack, compare several different processes, save costs and time in the investigation. This paper focuses on several reviews of research models to develop the system design of the Proton Exchange Membrane Fuel Cell (PEMFC). Purposes of this study are to determine the factors that affect system performance include: stack of PEMFC system, water management system and Supply of reactants to the PEMFC stack.

Phosphorene: A promising metal free cathode material for proton exchange membrane fuel cell

2019 ◽  
Vol 479 ◽  
pp. 590-594 ◽  
Author(s):  
Zhansheng Lu ◽  
Yudong Pang ◽  
Shuo Li ◽  
Yile Wang ◽  
Zongxian Yang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cathode Material ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Metal Free ◽  
Exchange Membrane

Platinum-Catalyzed Polymer Electrolyte Membrane for Fuel Cells

1999 ◽  
Vol 575 ◽  
Author(s):  
T. Jan Hwang ◽  
Hong Shao ◽  
Neville Richards ◽  
Jerome Schmitt ◽  
Andrew Hunt ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Low Cost ◽  
Polymer Electrolyte Membrane ◽  
Chemical Vapor ◽  
Proton Exchange ◽  
Fabrication Process ◽  
Membrane Electrode ◽  
Fuel Cell Performance ◽  
Electrolyte Membrane

ABSTRACTThe objective of this research is to develop the combustion chemical vapor deposition (CCVD) process for low-cost manufacture of catalytic coatings for proton exchange membrane fuel cell (PEMFC) applications. The platinum coatings as well as the fabrication process for membrane-electrode-assemblies (MEAs) were evaluated in a single testing fuel cell using hydrogen/oxygen. It was found that increasing the platinum loading from 0.05 to 0.1 mg/cm2 did not increase the fuel cell performance. The in-house MEA fabrication process needs to be improved to reduce the cell resistance. Significantly higher performance of Pt coating by the CCVD process has been obtained by MCT's fuelcell industry collaborators who are more experienced with MEA fabrication. The results can not be revealed due to confidentiality agreements.

Step-by-Step Synthesis of Non-Noble Metal Electrocatalysts for O2Reduction under Proton Exchange Membrane Fuel Cell Conditions

2007 ◽  
Vol 111 (51) ◽  
pp. 19033-19042 ◽  
Author(s):  
Juan Herranz ◽  
Michel Lefèvre ◽  
Nicholas Larouche ◽  
Barry Stansfield ◽  
Jean-Pol Dodelet
Keyword(s):  
Fuel Cell ◽  
Noble Metal ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Exchange Membrane

scholarly journals Kilowatt-Scale Fuel Cell Systems Powered by Recycled Aluminum

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Peter Godart ◽  
Jason Fischman ◽  
Douglas Hart
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Proton Exchange Membrane ◽  
Electrical Power ◽  
Hydrogen Gas ◽  
Proton Exchange ◽  
Hydrogen Fuel Cell ◽  
Cell Systems ◽  
Scrap Aluminum ◽  
Exchange Membrane

Abstract Presented here is a novel system that uses an aluminum-based fuel to continuously produce electrical power at the kilowatt scale via a hydrogen fuel cell. This fuel has an energy density of 23.3 kW h/L and can be produced from abundant scrap aluminum via a minimal surface treatment of gallium and indium. These additional metals, which in total comprise 2.5% of the fuel’s mass, permeate the grain boundary network of the aluminum to disrupt its oxide layer, thereby enabling the fuel to react exothermically with water to produce hydrogen gas and aluminum oxyhydroxide (AlOOH), an inert and valuable byproduct. To generate electrical power using this fuel, the aluminum–water reaction is controlled via water input to a reaction vessel in order to produce a constant flow of hydrogen, which is then consumed in a fuel cell to produce electricity. As validation of this power system architecture, we present the design and implementation of two proton-exchange membrane (PEM) fuel cell systems that successfully demonstrate this approach. The first is a 3 kW emergency power supply, and the second is a 10 kW power system integrated into a BMW i3 electric vehicle.

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