PEM electrolyzer using Sb-SnO₂ anode for electrolyte free electrochemical oxidation

This study uses solvothermal method to fabricate PEM electrolyzer compatible Sb-SnO₂ anode catalyst with particle morphology, then load the catalyst with different arrangement of MEA, including CCG and CCM. Characterization of catalyst has been conducted using SEM, XRD and XPS. Performance of different MEA arrangement has been investigated through LSV, CV and EIS. Electrochemical oxidation of reactive blue 4 has been conducted on both arrangements. Moreover, MEA with tiny amount of Pt/C as cathodic catalyst or IrO₂ as anodic catalyst has been test to determine the bottleneck of electrolyzer. Results suggested promising EO performance can be achieved through electrolyte free electrochemical oxidation, further improvement should focus on anode catalyst.