Anode catalyst of hybrid AuPd and rare earth doped cerium oxide/multi-walled carbon nanotubes for direct formic acid fuel cells

Hsuan Ming Kung, Yuh Jing Chiou, Hong Ming Lin, Andrzej Borodzinski, Leszek Stobinski, Chung Kwei Lin

Research output: Contribution to journalArticle

Abstract

For the direct formic acid fuel cells, anodic Pd catalyst has attracted considerable attention recently. In order to enhance the catalytic ability, conductivity, and prevent from the catalyst poisoning, the synthesis of Au-Pd solid solution phase decorated on Ir or Ru doped CeO2 modified MWCNTs substrate by polyol and synchrotron X-ray irradiation method were studied. The composition, structure and morphology were analyzed by XRD, SEM, TEM, TGA, and ICP, respectively. The hybrid AuPd/MOS/MWCNTs were not formed a single phase of AuPd in EG solution via polyol method but successfully synthesized in DI water solution by X-ray irradiation photochemical method at beam line 01A in Taiwan synchrotron radiation research center. The electrochemical analysis of AuPd series electrocatalysts via polyol method, AuPd/RuxCe1-xO2/MWCNTs have the highest electro-oxidizing current density in cyclic voltammetry experiment. However, Pd/CeO2/MWCNTs have the lowest potential in the maximum electro-oxidizing current density. The results of ECSA indicate the AuPd/RuxCe1-xO2/MWCNTs have the highest electrocatalytic property. For the electrocatalysts synthesized via X-ray irradiation method (1A), AuPd/MWCNTs (1A) has the highest electro-oxidizing current density in cyclic voltammetry experiment meanwhile it has the lowest potential in the maximum electro-oxidizing current density. In addition, the results of ECSA indicate the AuPd/CeO2/MWCNTs (1A) have the highest electrocatalytic property which AuPd/MWCNTs is almost matched with. Also, the results indicate Pd/CeO2/MWCNTs (polyol) have the highest stability up to 10 k seconds with 250 mA/mg Pd current density.

Original languageEnglish
Pages (from-to)706-713
Number of pages8
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume63
Issue number7
Publication statusPublished - 2016

Fingerprint

Formic acid fuel cells (FAFC)
Carbon Nanotubes
Cerium
Rare earths
Polyols
Carbon nanotubes
Anodes
Current density
Catalysts
Oxides
Electrocatalysts
Irradiation
X rays
Cyclic voltammetry
Catalyst poisoning
Synchrotron radiation
Synchrotrons
Solid solutions
Experiments
ceric oxide

Keywords

  • AuPd
  • CeO
  • Formic acid
  • Fuel cell
  • MWCNTs

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Anode catalyst of hybrid AuPd and rare earth doped cerium oxide/multi-walled carbon nanotubes for direct formic acid fuel cells. / Kung, Hsuan Ming; Chiou, Yuh Jing; Lin, Hong Ming; Borodzinski, Andrzej; Stobinski, Leszek; Lin, Chung Kwei.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 63, No. 7, 2016, p. 706-713.

Research output: Contribution to journalArticle

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AU - Stobinski, Leszek

AU - Lin, Chung Kwei

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AB - For the direct formic acid fuel cells, anodic Pd catalyst has attracted considerable attention recently. In order to enhance the catalytic ability, conductivity, and prevent from the catalyst poisoning, the synthesis of Au-Pd solid solution phase decorated on Ir or Ru doped CeO2 modified MWCNTs substrate by polyol and synchrotron X-ray irradiation method were studied. The composition, structure and morphology were analyzed by XRD, SEM, TEM, TGA, and ICP, respectively. The hybrid AuPd/MOS/MWCNTs were not formed a single phase of AuPd in EG solution via polyol method but successfully synthesized in DI water solution by X-ray irradiation photochemical method at beam line 01A in Taiwan synchrotron radiation research center. The electrochemical analysis of AuPd series electrocatalysts via polyol method, AuPd/RuxCe1-xO2/MWCNTs have the highest electro-oxidizing current density in cyclic voltammetry experiment. However, Pd/CeO2/MWCNTs have the lowest potential in the maximum electro-oxidizing current density. The results of ECSA indicate the AuPd/RuxCe1-xO2/MWCNTs have the highest electrocatalytic property. For the electrocatalysts synthesized via X-ray irradiation method (1A), AuPd/MWCNTs (1A) has the highest electro-oxidizing current density in cyclic voltammetry experiment meanwhile it has the lowest potential in the maximum electro-oxidizing current density. In addition, the results of ECSA indicate the AuPd/CeO2/MWCNTs (1A) have the highest electrocatalytic property which AuPd/MWCNTs is almost matched with. Also, the results indicate Pd/CeO2/MWCNTs (polyol) have the highest stability up to 10 k seconds with 250 mA/mg Pd current density.

KW - AuPd

KW - CeO

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KW - Fuel cell

KW - MWCNTs

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