Scanning electron microphotographs structure

FIGURE 5.2 A scanning electron microphotograph of a MEA (left), and a PTL/MPL assembly (right). The thick membrane and electrodes in the MEA are typical of direct alcohol applications. The structural differences between the GDL and PTL are clearly visible on the right. (From Fraunhofer Institute for Solar Energy Systems. With permission.)... 

The scanning electron microphotograph of the section of the lacquer film shows a very characteristic structure with aggregated grains of 0.1 yn size. 

In addition, MMA-grafted pullulan (a water soluble polysaccharide, M, 100,000) was prepared by using ceric ammonium nitrate as initi-ater in an aqueous medium35. A scanning electron microphotograph of the film made from a butyl acetate-acetone solution showed an aggregated cell structure in the film like in Japanese lacquer films as shown in Fig. 18. 

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