The Swiss roll electrochemical reactor design, which is comprised of c
oncentric spiral electrode coils, has a superior electrode packing den
sity and reaction capacity in comparison with more conventional design
s. Because platinized-titanium surfaces are mechanically unstable at l
ow platinum loadings, use of the Swiss roll design with such electrode
s requires in situ electrodeposition of platinum onto the titanium sur
faces after fabrication. Methodology is described to examine the resul
tant Pt distribution across the width and along the length of expanded
Ti mesh after in situ electrodeposition. Four major control variables
, i.e., total electroplating charge, plating current density, number o
f pulses used to deliver the charge, and first coil to receive a curre
nt pulse, explain 86% of the experimental variance in a linear effects
model. Resulting Pt distribution, when normalized for the extent of p
latinization, is surprisingly uniform on the entire extent of the elec
trode coils. The major discrepancies from uniform deposition occurred
on the Ti electrode coil which acted as the counter electrode during t
he first electrodeposition, indicating a surface modification which af
fects the electrodeposition process.