can be tailored to match gas flow patterns and gradients. Further refinements can be achieved by varying the print pattern across the cell, and by using multiple layers to control both the depth and structure of the layers within the pattern. The advantages of this gas diffusion electrode are higher
Catalyst for membrane electrode assembly
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 275 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1464-2859
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β¦ Synopsis
Power Corporation, USA Here a solid oxide fuel cell electrode is produced by a sintering process. An underlayer is applied to the electrolyte of a solid oxide fuel cell in the form of a slurry, and dried. An overlayer is applied to the underlayer, and dried. The dried under-and overlayers are then sintered to form a fuel electrode. The two layers comprise a combination of electrode metal and stabilised zirconia, with the overlayer comprising a greater percentage of electrode metal. The use of more stabilised zirconia in the underlayer provides good adhesion to the electrolyte, while the use of more electrode metal in the overlayer provides good electrical conductivity. The sintered electrodes exhibit favourable performance characteristics, including good porosity, adhesion, electrical conductivity and freedom from degradation.
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The performance of nano-structured templated non-platinum-based cathode electrocatalysts for proton exchange membrane fuel cells (PEMFC) was evaluated for different catalyst layer compositions. The effect of non-platinum catalyst, Nafion, and 35 wt% Teflon modified Vulcan XC-72 Carbon Blacks (XC-35)
## Abstract In this work, a novel catalyst coated membrane (CCM) approachβa catalystβsprayed membrane under irradiation (CSMUI)βwas developed to prepare MEAs for proton exchange membrane fuel cell (PEMFC) application. Catalyst ink was sprayed directly onto the membrane and an infrared light was use