Results 261 to 270 of about 16,378 (307)

Operation of Direct Methanol Fuel Cells

Electrochemical and Solid-State Letters, 2003
A 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, Mark Hollett, Chunzhi He, Alan Attia, Arthur Kaufman   +4 more
openaire   +1 more source

Direct methanol fuel cells for transportation

IEE Seminar on Electric, Hybrid and Fuel Cell Vehicles, 2000
The author's progress made in the key areas for direct methanol fuel cell (DMFC) development for transport applications is discussed. A large-scale prototype DMFC stack has been built (25 cells of 270 cm/sup 2/ active area per cell, nominal power output 500 W) based on a flow bed design developed by the author with the aid of a flow visualisation study
openaire   +1 more source

Catalysts for Direct Methanol Fuel Cells

Fuel Cells, 2002
The 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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Status of Direct Methanol Fuel Cells

1st International Energy Conversion Engineering Conference (IECEC), 2003
The simplicity of the direct electro -oxidation of methanol in a polymer electrolyte membrane fuel cell and the technological advances achieved in performance and efficiency in the last ten years has spurred the development of DMF C-based ...
S. R. Narayanan, Thomas Valdez, Andrew Kindler   +2 more
openaire   +1 more source

Review of Direct Methanol Fuel Cells

2007
Direct Methanol Fuel Cells (DMFCs) are galvanic electrochemical flow systems that convert chemical energy from methanol and oxygen directly to electrical energy. This direct conversion avoids the limitations of the Carnot cycle that constrains the performance of engines and gives DMFCs a higher theoretical efficiency.
Brenda L. Garc’ia, John W. Weidner
openaire   +1 more source

Methanol Behavior in Direct Methanol Fuel Cells

Angewandte Chemie, 2007
Younkee, Paik, Seong-Soo, Kim, Oc Hee, Han   +2 more
openaire   +2 more sources

Catalysis for Direct Methanol Fuel Cells

2012
The 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
openaire   +1 more source

Electrocatalysis of Direct Methanol Fuel Cells

2009
Preface. List of Contributors. 1 Direct Methanol Fuel Cells: History, Status and Perspectives ( Antonino Salvatore Arico, Vincenzo Baglio, and Vincenzo Antonucci). 1.1 Introduction. 1.2 Concept of Direct Methanol Fuel Cells. 1.3 Historical Aspects of Direct Methanol Fuel Cell Development and State-of-the-Art.
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Direct Use of Methanol in Fuel Cells

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2008
Abstract A fuel cell is a device in which the energy of a fuel is converted directly into electricity direct current by an electrochemical reaction without resorting to a burning process, rather than to heat by a combustion reaction. Methanol can be used in blend with conventional fuels without engine modification or pure as a fuel. The direct methanol
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Direct Methanol Fuel Cell

2018
Fereshteh Samimi, Mohammad R. Rahimpour
openaire   +1 more source