c">Mixed reducing agents of ethylene glycol and NaBH4 were used to prepare electrocatalysts.
Type of carbon support in Pt−ZrO2 catalyst greatly affected its physical properties.
Pt–ZrO2/SWCNTs could effectively remove COads poisoning species.
Pt−ZrO2/MWCNTs showed lower Warburg impedance parameter than that at Pt−ZrO2/C.