New fuel cell catalyst

petak, 08.10.2010.

New fuel cell catalyst

Methanol fuel cell is an alternative to fossil fuel cells, efficient use can be a long time. The fuel cell through the use of electro-oxidation of the chemical reaction to produce electricity, usually induced chemical reactions inside a fuel cell requires platinum catalyst, as platinum is an expensive metal, so the use of this technology is very limited. It is reported that chemists JoseEBarranco will likely change this situation, according to his research, the use of cheaper fuel cell catalysts has been developed. Barranco with nickel, niobium, antimony and ruthenium as a catalyst made of alloy, the content of platinum in the catalyst to a minimum (only 1%). The new alloy also improves the catalytic process of carbon monoxide, carbon dioxide conversion. With the successful test catalysts, Barranco hope to conduct further experiments to improve the efficiency of the catalyst 9 to 13 times. This also means that the efficiency of methanol fuel cells will be increased by 50% or more.

ST's fuel cell ", then use the official fuel cartridge can prevent electrolyte dry"

ST (STMicroelectronics, ST) in the September 30, 2008 at Makuhari Messe from the International Convention and Exhibition Center at the "CEATEC JAPAN 2008" on the presentation of the portable device using a micro-fuel cells.

ST's micro fuel cell from the core unit (FCCU), Energy Management Unit (EMU), the hydrogen fuel tank, valves and connecting lines form. Low-pressure hydrogen fuel. Use of water can produce low-pressure hydrogen generator hydrogen as a fuel to supply. Water stored in the fuel box, security is high. Is currently working with major manufacturers to develop fuel fuel cartridge box.

Use low-pressure hydrogen fuel cell produces electrolytes if dry, water, etc., or electrodes, power generation efficiency will be reduced. The ST's fuel cell can be built-in sensors detect moisture in the FCCU, according to feedback information to adjust the EMU supply of hydrogen can be produced by chemical reaction of water to improve electrolyte and humidity, or by increasing the cell internal temperature to evaporate the water.

The demonstration, not used in development of the fuel cartridge, but the use of the performance of different ordinary hydrogen generating device, "can not adjust the electrolyte and humidity" (ST Company New Energies Business Unit, Fuel Cell Product Leader, Industrial & Multisegment Sector, ASD & IPAD Division, Mathieu Roy). The fuel cell by air to Japan, France, electrolytes have been dry. And the temporary use of lower performance hydrogen generating device, only about 300mW output power and therefore can not produce enough water to increase the electrolyte humidity.

However, "in 2008 will complete the fuel cartridge development, the CEATEC 2009 show, including the fuel cartridge to the fuel cell, including" (Roy). Fuel cartridge developed by several companies, "as with other fuel cartridge, the convenience store sales in the world." (Roy).

EMU and the FCCU on a single chip are concerned, "will be manufactured by other processes, the use of modules integrated approach" (Roy). The integrated 9 FCCU, an empty region. Plan for the future in this area with EMU. "EMU will use the standard CMOS process, the FCCU will use a simple special process. Module integration, efficiency and excellent scalable" (Roy).

Next year will further enhance the reliability and durability of the battery. Production for 2010, the goal is to reduce the dimensions to 40mm x 50mm x 4mm.

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08.10.2010. u 04:14 • 1 Komentara • Print • #

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