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Direct Methanol Fuel Cell Durability
2009This chapter provides an overview of performance durability issues typically occurring in the direct methanol fuel cell (DMFC), in both single cells and short DMFC stacks. The focus of this chapter is on those sources of performance degradation that have been recognized as impacting DMFC operation in a major way (1) the loss of cathode activity due to ...
Yu Seung Kim, Piotr Zelenay
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Catalysts for Direct Methanol Fuel Cells
Fuel Cells, 2002The activity of in house prepared carbon-supported Pt-Ru catalysts for methanol oxidation and carbon-supported RuSe for the oxygen reduction reaction in direct methanol fuel cells (DMFCs) was investigated. The composition of Pt-Ru/C was varied both in terms of weight loading (ratio of total metal content to carbon) as well as the ratio of Pt to Ru. The
M. Neergat, D. Leveratto, U. Stimming
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Operation of Direct Methanol Fuel Cells
Electrochemical and Solid-State Letters, 2003A simple and effective procedure is provided to prevent a direct methanol fuel cell from deterioration during overnight idle period. The procedure includes purging cathode and/or anode using a gas before the cell is shut down. The procedure can also be performed before the cell is restarted if purging was not carried out before the cell was shut down ...
Zhigang Qi +4 more
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IEE Colloquium on Compact Power Sources, 1996
The principle fuel used to derive power from fuel cells has to date been hydrogen. Hydrogen is generated primarily by the reformation of hydrocarbon based feedstocks such as methane and methanol. Such generation immediately suggests a loss in efficiency in fuel utilisation as well as increased system cost. Thus the direct use of hydrocarbon based fuels
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The principle fuel used to derive power from fuel cells has to date been hydrogen. Hydrogen is generated primarily by the reformation of hydrocarbon based feedstocks such as methane and methanol. Such generation immediately suggests a loss in efficiency in fuel utilisation as well as increased system cost. Thus the direct use of hydrocarbon based fuels
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Sensors for direct methanol fuel cells
Renewable and Sustainable Energy Reviews, 2014Abstract A sensor can be used to enhance the performance of a direct methanol fuel cell (DMFC). Sensors function as alarms for various problems encountered with DMFCs, of which methanol crossover is the primary problem. These sensors can significantly improve DMFC operation, thereby promoting the commercialisation of this product.
M.A. Hassan +3 more
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Electrode in direct methanol fuel cells
International Journal of Hydrogen Energy, 2010Abstract Nanotechnology has recently generated a lot of attention and high expectations not only in the academic community but also among investors, scientists and researchers in both government and industry sectors. Its unique capability to fabricate new structures at the atomic scale has already produced novel materials and devices with great ...
A.M. Zainoodin +2 more
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Indirect-methanol and direct-methanol fuel cell vehicles
35th Intersociety Energy Conversion Engineering Conference and Exhibit, 2000Direct fuel oxidization yields major simplifications and potential performance advantages for a fuel cell power system-particularly for a fuel cell vehicle (FCV) application. Following a brief introduction to the unique characteristics of the polymer electrolyte membrane-based direct methanol fuel cell (DMFC) (compared to direct-hydrogen and the ...
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Catalysis for Direct Methanol Fuel Cells
2012The direct methanol fuel cell (DMFC) is a particular case of a low-temperature proton exchange membrane (PEM) fuel cell (FC). A DMFC utilizes CH3OH as anode fuel and O2 as cathode fuel. Depending on the application, a DMFC is typically operated in the range of 40–80°C.
C. Bock, B. MacDougall, C.-L. Sun
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Methanol Behavior in Direct Methanol Fuel Cells
Angewandte Chemie, 2007Younkee, Paik +2 more
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