FUEL CELL TECHNOLOGY
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FUEL CELL TECHNOLOGY An Alternative Form of Electrical Power
description
FUEL CELL TECHNOLOGY. An Alternative Form of Electrical Power. HOW DO FUEL CELLS WORK?. FUEL CELL TECHNOLOGY. Fuel Cells Generate Electricity By Freeing Electrons From H 2 Gas. An Alternative Form of Electrical Power. HOW DO FUEL CELLS WORK?. Fuel Cells Generate Electricity - PowerPoint PPT Presentation
Transcript of FUEL CELL TECHNOLOGY
FUEL CELL TECHNOLOGY
An Alternative Form of Electrical Power
FUEL CELL TECHNOLOGY
An Alternative Form of Electrical PowerFuel Cells Generate ElectricityBy Freeing Electrons From H2 Gas
HOW DO FUEL CELLS WORK?
HOW DO FUEL CELLS WORK?
Fuel Cells Generate ElectricityBy Freeing Electrons From H2 Gas
Because the Proton Exchange Membrane does not carry electron current,
the Freed Electrons are Forced to Follow an External Path through a Wire(Thus Generating Electrical Power)
HOW DO FUEL CELLS WORK?
Because the Proton Exchange Membrane does not carry electron current,
the Freed Electrons are Forced to Follow an External Path through a Wire(Thus Generating Electrical Power)While the H+ ions (protons) are free to travel across the membrane via
Ion Exchange Reactions!
HOW DO FUEL CELLS WORK?
While the H+ ions (protons) are free to travel across the membrane via Ion Exchange Reactions!
At the Opposite Electrode, H+ ions, O2(gas) andElectrons combine to form H2O byproducts--- Making this Technology ENVIRONMENTALLY FRIENDLY!!!
HOW DO FUEL CELLS WORK?
At the Opposite Electrode, H+ ions, O2(gas) andElectrons combine to form H2O byproducts--- Making this Technology ENVIRONMENTALLY FRIENDLY!!!
WHERE MAY FUEL CELLS BE USED???
Fuel CellTechnologies
AutomotiveApplications
WHERE MAY FUEL CELLS BE USED???
To Power Electricity Grids
In Our Communities
Power Supply to Homes And Families
Portable Electronics
EVERYWHERE!!!
Fuel CellTechnologies
Researchers are Asking the Question---
?
H2 Fuel???
Beginning with the most Important Factors to Consider:• Safety • Cost• Supply Rate
How do we provide H2 to the Fuel Cell???
Beginning with the Most Important Factors to Consider:• Safety • Cost• Supply Rate
Researcher are Asking the Question---How do we provide H2 to the Fuel Cell???
?
H2 Fuel???
We examine our technological options (for Automotive Applications)…• 5” Stainless Steel Tanks to Carry Gaseous Hydrogen • On-Board Production of Hydrogen from Hydrocarbons –(C-C-C)x-• Release of Hydrogen Gas from Metal Hydrides
Beginning with the Most Important Factors to Consider:• Safety • Cost• Supply Rate
Researcher are Asking the Question---How do we provide H2 to the Fuel Cell???
We examine our technological options (for Automotive Applications)…• 5” Stainless Steel Tanks to Carry Gaseous Hydrogen • On-Board Production of Hydrogen from Hydrocarbons –(C-C-C)x-• Release of Hydrogen Gas from Metal Hydrides
The Dobbins’ Group has limited their studies to Metal Hydride ApproachWe are looking into…• NaAlH4 with Ti Dopants Added• LiBH4
• MgH2
Researcher are Asking the Question---How do we provide H2 to the Fuel Cell???
We examine our technological options (for Automotive Applications)…• 5” Stainless Steel Tanks to Carry Gaseous Hydrogen • On-Board Production of Hydrogen from Hydrocarbons –(C-C-C)x-• Release of Hydrogen Gas from Metal Hydrides
The Dobbins’ Group has limited their studies to Metal Hydride ApproachWe are looking into…• NaAlH4 with Ti Dopants Added• LiBH4
• MgH2
Hydrogen Storage Materials---Complex Metal Hydride --- NaAlH4
Technical Questions surrounding the use of this material???
• What are the kinetics of hydrogen uptake and release?• What are the cost benefits of hydrogen fuel vs. oil? • • • Where are the Dopant (Ti) atoms within the structure? (Answer: Using Our X-ray Approaches, we will try to pinpoint the location of Ti in NaAlH4.)
X-ray Approaches
Using 2 types of X-rays
Stationary Anode X-ray Generator Synchrotron X-ray Generator
Advanced Photon Sourceat Argonne National Laboratory
Impact on 9-12 grade science education---- how will you begin to construct a learning module around this work so that 9-12 graders can become interested/involved in synchrotron x-ray work (this is specific to your science education interests and I am also interested in developing this sort of information).
User Facilities…(What’s needed to discuss with K-12ers the need for user facilities?)
Statistics about Mathematics and Science in K-12 Education….
D.L. Anton, "Hydrogen Desorption Kinetics in Transition Metal Modified NaAlH4", Journal of Alloys and Compounds V356-357 (2003) 400-404.
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Ag+
Cd+
Ce3
+
Co3
+
Cr2
+
Cr3
+
Cu+
Fe2
+
Fe3
+
Ga3
+
Gd3
+
Ge4
+
Hf4
+
Mn2
+
Mo3
+
Nb4
+
Pd2
+
Pt4
+
Rh3
+
Ru3
+
Sr2
+
Ti2
+
Ti3
+
Ti4
+
Ti3
+
V2+
V3+
V4+
Yb3
+
Zn2
+
Zr4
+
Desorption Rate (5 Min) - wt% per h
