Development and application of bimetallic catalysts supported carbon nanotube for 1-propanol electrooxidation

Year 2022, Volume: 10 Issue: 2, 138 - 144, 31.12.2022

Şefika Kaya

https://doi.org/10.51354/mjen.1200536

Abstract

Herein, carbon nanotube supported bimetallic catalysts (PtBi/CNT) are synthesized at various metals weight loadings by NaBH4 reduction method. The surface morphology and crystal structure of the catalysts are investigated via X-ray diffraction (XRD) and electron microscopy with energy dispersive X-ray (SEM-EDX) advance surface methods. According to XRD results, the crystal size of PtBi(90:10)/CNT catalyst is determined as 4.66 nm. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) electrochemical techniques are used to determine 1-propanol electrooxidation activities of the catalysts. The highest specific activity and mass activity are obtained with PtBi(90:10)/CNT catalyst as 5.663 mA/cm2 and 447.21 mA/mg Pt, respectively. However, it is concluded that PtBi(90:10)/CNT catalyst can be used as an anode catalyst in 1-propanol electrooxidation with long-term stability and low resistance.

Keywords

Pt, Bi, catalyst, 1-propanol, electrooxidation, carbon nanotube

Supporting Institution

Eskişehir Osmangazi Üniversitesi

Project Number

FHD-2022-2346

Thanks

Eskisehir Osmangazi University Scientific Research Projects Commission (BAP Project No: FHD-2022-2346) supported this study.

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