Horizontal Structuring by LbL

In 2005, Farhat et al. [145] described for the first time the use of a slightly modified technique based on LbL to fabricate components for PEM FCs. Compared to spraying, DECAL transfer or sieve-printing, LbL offers many advantages, such as the facile incorporation of conductive components, uniform coating of surfaces of complex geometries as well as nanometer-scale control over film thiclcness and film porosity. These make LbL an attractive new tool in fuel cell technology [133]. 

The LbL technique may be utilized also with other novel support materials, for example, PANl fibers before and after carbonization [148] and incorporation of 

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Carbon as Structure-Forming Element in Porous Fuel Cell Electrodes 269 7.4.5.1 Horizontal Structuring by LbL... 

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