@article {Ilinich:July 2008:0032-1400:134, author = "Ilinich, Oleg", author = "Liu, Ye", author = "Castellano, Christopher", author = "Koermer, Gerald", author = "Moini, Ahmad", author = "Farrauto, Robert", title = "A New Palladium-Based Catalyst for Methanol Steam Reforming in a Miniature Fuel Cell Power Source", journal = "Platinum Metals Review", volume = "52", year = "July 2008", abstract = "A novel palladium-based catalyst has been developed for use in a miniature fuel cell power source for portable applications, incorporating a polymer electrolyte membrane (PEM) fuel cell. Hydrogen, which is the fuel for the cell, is produced in a ceramic microreactor via the catalytic reaction of methanol steam reforming: CH3OH + H2O → 3H2 + CO2. The need for a new catalyst in this application is driven by the limitations of traditional particulate catalysts based on copper oxide, zinc oxide and alumina (Cu-Zn-Al catalysts), which have low thermal stability and high sensitivity towards air and condensing steam. These features result in a declining activity and mechanical integrity of Cu-Zn-Al catalysts under the frequent start-stop conditions typical of the operational mode of the miniature power source. The new Pd-based catalyst has activity and selectivity similar to those of Cu-Zn-Al catalysts, but is more durable and stable under the duty cycle conditions of a portable power source. In the microreformer, the catalyst is washcoated directly on the walls of the steam reforming section, providing favourable conditions for efficient heat transfer between the heat-generating catalytic combustion section of the microreformer and its heat-consuming steam reforming section.", pages = "134-143(10)", url = "http://www.ingentaconnect.com/content/matthey/pmr/2008/00000052/00000003/art00002" doi = "doi:10.1595/147106708X324403" }