Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers.

ABSTRACT: Exploring efficient approaches to design electrodes for proton exchange membrane fuel cells (PEMFCs) is of great advantage to overcome the current limitations of the standard platinum supported carbon (Pt/C) catalyst. Herein, a Pt/C electrode consisting of double catalyst layers (DCL) with low Pt loading of around 0.130 mg_Pt cm^-2 is prepared using spray and electrophoresis (EPD) methods. The DCL electrode demonstrated a higher electrochemical surface area (ECSA-52.5 m² g_Pt ^-1) and smaller internal resistance (133 Ω) as compared to single catalyst layer (SCL) sprayed (37.1 m² g_Pt ^-1 and 184 Ω) or EPD (42.4 m² g_Pt ^-1 and 170 Ω) electrodes. In addition, the corresponding DC

SUBMITTER: Dao DV 

PROVIDER: S-EPMC9064328 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature