Investigation of glycerol electrooxidation activity of carbon supported PdCu bimetallic electrocatalyst

Ağtoprak K., Doğan-Özcan M., Akın A. N., Akay R. G.

TURKISH JOURNAL OF CHEMISTRY, cilt.46, sa.6, ss.2102-2111, 2022 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 6
  • Basım Tarihi: 2022
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.2102-2111
  • Kocaeli Üniversitesi Adresli: Evet

Özet

In this study, Pd/C, Cu/C, and a series of PdCu/C bimetallic electrocatalysts were prepared by microwave-assisted modified

polyol method to determine glycerol electrooxidation reaction (GOR) activities. The effect of microwave duration on catalyst structure

and GOR activity was investigated on PdCu/C bimetallic catalysts. Also, a commercial Pd/C (com-Pd/C) was used to compare catalytic

activities with prepared samples. Electrocatalysts were characterized by using X-ray Diffraction (XRD), Inductively Coupled Plasma

Optical Emission Spectroscopy (ICP-OES), and Transmission Electron Microscopy (TEM) analyses. In addition, the activity and

stability of electrocatalysts for GOR were examined by using cyclic voltammetry (CV) and chronoamperometry (CA). In XRD results,

the formation of PdCu alloy structure was observed successfully in all bimetallic catalysts. It was found that the PdCu electrocatalyst

with microwave duration of 150 s (PdCu150) was exhibited homogeneous dispersion in TEM images. The particle size of 6.45 nm for

PdCu150 was identified from TEM. Furthermore, the performance results were indicated that PdCu150 has the highest activity (36.02

mA/cm2) and stability compared to Pd/C (8.56 mA/cm2), and com-Pd/C (10.23 mA/cm2) in glycerol electrooxidation.