logo

Aspects of Direct Alkaline Alcohol Fuel Cells

PDF Publication Title:

Aspects of Direct Alkaline Alcohol Fuel Cells ( aspects-direct-alkaline-alcohol-fuel-cells )

Next Page View | Return to Search List

Text from PDF Page: 001

Energies 2010, 3, 1499-1528; doi:10.3390/en3081499 Review Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells Eileen Hao Yu 1, Ulrike Krewer 2,3,* and Keith Scott 1 1 2 School of Chemical Engineering and Advanced Materials, Merz Court, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK; E-Mails: eileen.yu@ncl.ac.uk (E.H.Y.); k.scott@ncl.ac.uk (K.S.) Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany 3 Universitaetsplatz 2, 39106 Magdeburg, Germany Portable Energy Systems, Chair for Process Systems Engineering, Otto von Guericke University, * Author to whom correspondence should be addressed; E-Mail: krewer@mpi-magdeburg.mpg.de; Tel.: +49-(0)391-6110-443; Fax: +49-(0)391-6110-536. Received: 21 July 2010; in revised form: 6 August 2010 / Accepted: 16 August 2010 / Published: 24 August 2010 Abstract: Direct alkaline alcohol fuel cells (DAAFCs) have attracted increasing interest over the past decade because of their favourable reaction kinetics in alkaline media, higher energy densities achievable and the easy handling of the liquid fuels. In this review, principles and mechanisms of DAAFCs in alcohol oxidation and oxygen reduction are discussed. Despite the high energy densities available during the oxidation of polycarbon alcohols they are difficult to oxidise. Apart from methanol, the complete oxidation of other polycarbon alcohols to CO2 has not been achieved with current catalysts. Different types of catalysts, from conventional precious metal catalyst of Pt and Pt alloys to other lower cost Pd, Au and Ag metal catalysts are compared. Non precious metal catalysts, and lanthanum, strontium oxides and perovskite-type oxides are also discussed. Membranes like the ones used as polymer electrolytes and developed for DAAFCs are reviewed. Unlike conventional proton exchange membrane fuel cells, anion exchange membranes are used in present DAAFCs. Fuel cell performance with DAAFCs using different alcohols, catalysts and membranes, as well as operating parameters are summarised. In order to improve the power output of the DAAFCs, further developments in catalysts, membrane materials and fuel cell systems are essential. OPEN ACCESS energies ISSN 1996-1073 www.mdpi.com/journal/energies

PDF Image | Aspects of Direct Alkaline Alcohol Fuel Cells

aspects-direct-alkaline-alcohol-fuel-cells-001

PDF Search Title:

Aspects of Direct Alkaline Alcohol Fuel Cells

Original File Name Searched:

energies-03-01499.pdf

DIY PDF Search: Google It | Yahoo | Bing

SeaMerlin The SeaMerlin Engine is a water based gas leverage turbine for marine propulsion, seawater distillation, oceanwater CO2 harvesting, and more.

About: More about Infinity Turbine and the quest for the Xprize... More Info

Strategy and Consulting Services: Renewable energy strategy, Organic Rankine Cycle, CO2 energy, and Sonification technology consulting... More Info

@elonmusk XPrize $100 million CO2 Challenge: Carbon Removal Prize Challenge Sponsored by Elon Musk... More Info

CO2 Phase Change Demonstrator: Experiment with gas to liquids (CO2 to alcohol) using Nafion and our phase change demonstrator cart (we can ship worldwide)... More Info

CO2 GTL Gas to Liquids Experimental Platform: Experiment with gas to liquids (CO2 to alcohol) using Nafion (electrolyzer membrane) and our phase change demonstrator cart (we can ship worldwide). CO2 goes supercritical at 31 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, Nafion pellets, Nafion membrate, or Nafion tubes... More Info

Concept: The concept of the SeaMerlin Engine is to convert or supplement existing marine vessel propulsion to a gas leverage turbine which scavenges CO2 from saltwater at the same time it provides vessel thrust.

CONTACT TEL: 608-238-6001 Email: greg@seamerlin.com | RSS | AMP