Direct Methanol Fuel Cell as the Method to Replenish Energy

0 comments

Direct Methanol Fuel Cell
Direct Methanol Fuel Cell (DMFC) can produce energy with the following steps. To be able to produce energy in the cells, it takes a mixture of methanol and water. Methanol solution is fed into the anode side. Then, the methanol is oxidized in the catalyst layer, usually contains platinum, to form carbon dioxide. Water consumed in the reaction with methanol at the anode which produces carbon dioxide, protons (H +) and electrons (e-). Positive hydrogen ions then move through the membrane exchanger of protons and electrons (e-) will move from the anode to the cathode through the external circuit to form an electric current.

These currents can be used to power lights, cell phones, and others. This current is then returning to the cathode cell. Despite having a relatively high energy density, low efficiency of DMFC because of the high absorption of methanol in the membrane material is used, commonly known as methanol crossover. The result, the efficiency of DMFC is only approaching 40%. However, one of the new membrane materials (polymer electrolyte thin film) has been used to reduce the problem. Another problem in DMFC is the management of carbon dioxide formed in the anode.

Direct Methanol Fuel Cell is currently limited to the energy can be generated, but it can save substantial energy in a small space. This means that the DMFC can produce small amounts of energy in a long time. This causes the cell in this type becomes one of the candidates to change lithium ion battery technology and is ideal for items such as mobile phones, digital cameras or laptops. Compared to lithium ion batteries of the same size, commercial DMFC has a longer operating time. DMFC can produce energy continuously as long as there is an energy source. Without needing to recharge the energy source used, the DMFC users only need to enter a new methanol cartridge to continue the use of energy. In conclusion, Direct Methanol Fuel Cell (DMFC) is one type of fuel cell that uses a Proton Exchange Membrane (PEM) using methanol is directly fed into it.

Because methanol and water are fed directly into the cell, DMFC does not require a steam reforming process. This leads to different DMFC which is the Reformed MFC (RMFC) which also uses methanol as a source of energy. This will further DMFC generates electricity from chemical reactions involving methanol, water, and air and produce a number of water and carbon dioxide.

Have you ever had had a problem with the laptop battery suddenly runs out during the presentation but you do not bring charger? Have you ever had the problem with cell phones that suddenly die because your battery runs out while you are on a call? These conditions do not allow us to connect the charger to recharge a depleted battery. Indeed, the conditions that have been stated before are really annoying for us. Both the laptop and the cell phone are two most important gadgets for our lives. If we do not have them or we face the condition stated before, it might be hard for us to cope with the matters of our lives.

However, do not worry, the new technology Direct Methanol Fuel Cell (DMFC) can replenish the energy in these devices without the aid of a battery charger. You only need to enter the methanol and you can use the gadget again. The use of methanol as a primary energy source has several advantages compared to pure hydrogen. One of the most significant is the liquid methanol which have the characteristics which ranging from -97.0 ° C to 64.7 ° C so it does not require high pressure or low temperature storage. In contrast, hydrogen gas, to be used effectively, should form a high-pressure gas or a super cooled liquid that must be stored in pressurized tanks.
Share this article :
 
Copyright © 2011. Hydrogen Fuel Cells|Energy|Cars|Technology - All Rights Reserved
RSS Feeds
Powered by Hydrogen Fuel Cells