Fig. 11(a) compares the single-cell performance of the
MEAs made at these speeds. The MEA made at 50 mm min1
generates the highest peak power density. The performance
difference for all three MEAs appears only in the high current
density region and is in a close range. This indicates that the
decal transfer of electrodes can be accomplished in a very
short time without compromising MEA performance. For a
conventional low-temperature decal method with a flat-press,
hot-pressing is usually carried out either under high pressure
or for a relatively long duration (about 8e10 min) in order to
achieve a complete transfer of catalyst layers [16,23,27]. This
can result in a substantial loss of electrochemically active
surface area and the porosity of electrodes.