Remarkable activity of a ZnPdPt anode catalyst: Synthesis, characterization, and formic acid fuel cell performance

Çağlar, Aykut; Çögenli, M. Selim; Yurtcan, Ayşe Bayrakçeken; Alal, Orhan; Kıvrak, Hilal

doi:10.1016/j.jpcs.2021.110163

Cited by 11 publications

(1 citation statement)

References 85 publications

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“…Nyquist curves obtained with EIS measurements are usually semicircular. Since the diameter of the semicircle is proportional to the charge transfer resistance (R ct ), the smaller the diameter, the higher the catalytic activity [35,36]. For 10% PtBi(90:10)/CNT catalyst, the best catalytic activity and lowest charge transfer resistance were provided at -0.2 V.…”

Section: Electrochemical Resultsmentioning

confidence: 99%

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

Kaya

2022

MANAS Journal of Engineering

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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.

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Section: Electrochemical Resultsmentioning

confidence: 99%

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

Kaya

2022

MANAS Journal of Engineering

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The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst

et al. 2021

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At present, poly(methacrylic acid) (MA), poly(MA) hydrogel, and Pd-doped poly(MA) hydrogel modified electrodes are constructed on graphite pencil (G).The Pd precursor is coated on the poly(MA)/G electrodes surface using the electrodeposition method. These electrodes are characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy, and scanning electron microscopy-energy dispersive X-ray. Poly(MA) hydrogel and Pd-doped poly(MA) hydrogel are successfully prepared by the polymerization and further electrodeposition. Formic acid electro-oxidation (FAEO) activities are examined with cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Poly(MA)/G and Pd doped poly(MA) electrodes exhibit promising electro-catalytic activity with 60 mA current density, greater than literature values. Pd-doped poly(MA) hydrogel electrodes are promising electrodes for FAEO.

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Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cells – Part I – Fundamentals and Pd Based Catalysts

Hossain

Saleem

Alwi

et al. 2022

The Chemical Record

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Direct formic acid fuel cells (DFAFCs) have gained immense importance as a source of clean energy for portable electronic devices. It outperforms other fuel cells in several key operational and safety parameters. However, slow kinetics of the formic acid oxidation at the anode remains the main obstacle in achieving a high power output in DFAFCs. Noble metal‐based electrocatalysts are effective, but are expensive and prone to CO poisoning. Recently, a substantial volume of research work have been dedicated to develop inexpensive, high activity and long lasting electrocatalysts. Herein, recent advances in the development of anode electrocatalysts for DFAFCs are presented focusing on understanding the relationship between activity and structure. This review covers the literature related to the electrocatalysts based on noble metals, non‐noble metals, metal‐oxides, synthesis route, support material, and fuel cell performance. The future prospects and bottlenecks in the field are also discussed at the end.

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Remarkable activity of a ZnPdPt anode catalyst: Synthesis, characterization, and formic acid fuel cell performance

Cited by 11 publications

References 85 publications

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

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

The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst

Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cells – Part I – Fundamentals and Pd Based Catalysts

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