that normally utilized in industrial catalysts apart from fuel cell electrocatalysts. In
theory, then, it would be possible to employ dry impregnation with a solution
acidified to the correct value so as to achieve SEA. From Figure 13.12a, the correct
initial pH for a dry impregnation at 150,000 m2/l would be about 0.5. This mode
might be thought of as charge-enhanced dry impregnation (CEDI).