Electrospray Deposition of Catalyst Layers with Ultralow Pt Loading for Cost-Effective H Production by SO Electrolysis.

The hybrid sulfur (HyS) thermochemical cycle has been considered as a promising approach for the massive production of clean hydrogen without CO emissions. The key to advance this technology and to enhance the cycle efficiency is to improve the electrocatalytic oxidation of SO, which is the pivotal reaction within this process. Hence, this paper investigates, for the first time, the effect of electrospray and air gun deposition techniques and the influence of very low Pt loadings (<0.