Abstract: This report describes the implementation in-line of the inductively-coupled plasma mass spectrometry (ICP-MS) with an electrochemical cell which mimics the conditions of the rotating-disk electrode (RDE) setup, and its application to Pt/C and Pt-Nd/C electrocatalysts. The goal is to observe the dissolution of metal during electrochemical stimulation.

Public abstract: This report describes the synthesis and characterisations of a highly-loaded PtCo intermetallic supported on sulfur-doped carbon with high Pt loading. This catalyst was tested with a stability test protocol in rotating disk electrode (RDE) compared with Pt reference from the project. PtCo/SC showed better retention of electrochemical active surface area (ECSA) and higher mass activity (MA) than Pt reference catalyst. It was used in the fabrication of a cathode catalyst layer, and accelerated stress tested through high voltage cycling (1.0 – 1.5 V) while continuously monitoring the cathode exhaust gas for CO₂ using an IR detector. The results show that the PtCo on SC has lower CO₂ loss than that detected from an otherwise identical MEA with the project reference catalyst.