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Fuel Cell Technology There Are Over 600 Term Paper

¶ … Fuel Cell Technology There are over 600 million motor vehicles in the world today. If present trends continue, the number of cars on Earth will double in the next 30 years." ("Cars Emit")

As the demand for energy increase and resources, such as fossil fuel, decrease alternative must be sought. Of these alternatives, hydrogen fuel cell technology, in automotive applications, has significant benefits and is now technologically feasible. Given this knowledge, it is imperative that we begin to set up the infrastructure necessary to utilize this technology.

I have studied this topic over the last three years, and the advancement of the technology has become increasingly exciting. What was once a dream is now a reality.

I'm going to provide you first with an overview of how fuel cells work and then describe for you the benefits of the use of fuel cells, including why hydrogen is the best choice. And, in the end, I will recommend a course of action for the beginnings of the infrastructure that is sure to be an entirely new chapter in our global history.

To understand why hydrogen fuel cells hold the key to combating our pollution problems, one must first understand how fuel cells work.

How fuel cells work

With a proton exchange membrane fuel cell, there are four basic elements.

The anode is the negative post of the cell and "conducts the electrons that are freed from the hydrogen molecules so that...

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It has channels etched into it that disperse the hydrogen gas equally over the surface of the catalyst." ("Proton")
The cathode is the positive post of the cell "has channels etched into it that distribute the oxygen to the surface of the catalyst. It also conducts the electrons back from the external circuit to the catalyst, where they can recombine with the hydrogen ions and oxygen to form water." ("Proton")

The electrolyte is a "specially treated material, which looks something like ordinary kitchen plastic wrap, only conducts positively charged ions. The membrane blocks electrons." ("Proton")

And, the catalyst, which is "a special material that facilitates the reaction of oxygen and hydrogen. It is usually made of platinum powder very thinly coated onto carbon paper or cloth." ("Proton")

When the pressurized hydrogen gas enters the fuel cell on the anode side, it is forced through the catalyst. As it contacts the catalyst it splits into two H- ions and two electrons. These electrons then are pulled through the anode where they exit through the external circuit to power the motor. ("Proton")

On the cathode side, oxygen is being forced through the catalyst where it forms two oxygen atoms. These "attract the two H+ ions through the membrane, where they combine with an oxygen atom and two of the electrons from the external circuit to form a water molecule."

This incredible technology has…

Sources used in this document:
Works Cited

Cars Emit Carbon Dioxide." 1997. Global Warming Focus on the Future. 27 May 2004. http://globalwarming.enviroweb.org/ishappening/sources/sources_co2_facts3.html.

Efficiency of Fuel Cells." 2004. HowStuffWorks.com. 27 May 2004. http://science.howstuffworks.com/fuel-cell4.htm.

Gasoline and Battery Power." 2004. HowStuffWorks.com. 27 May 2004. http://science.howstuffworks.com/fuel-cell5.htm.

Proton Exchange Membrane." 2004. HowStuffWorks.com. 27 May 2004. http://science.howstuffworks.com/fuel-cell2.htm.
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