Performance of a direct formic acid fuel cell fabricated by ultrasonic spraying

A. M. Zainoodin, T. Tsujiguchi, Mohd Shahbudin Mastar @ Masdar, S. K. Kamarudin, Y. Osaka, A. Kodama

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The performances of a direct formic acid fuel cells (DFAFCs) comprising anode catalyst layers prepared via the following three different coating techniques are tested: direct paint (DP), ultrasonic spraying on the diffusion layer (US-D), and ultrasonic spraying directly on the membrane (US-M). These tests confirm that the ultrasonic spraying is a suitable method for the fabricating DFAFC anodes. Palladium black was used for the anode catalyst and a commercially available Pt/C cathode electrode was used for all tests. Scanning electron microscopy (SEM) revealed deep cracks caused by the porous substrate in the catalyst layers prepared by DP and by ultrasonic spraying on the diffusion layer. However, catalyst layers prepared by ultrasonic spraying directly on the membrane were less cracked and less porous, with small Pd particles. The catalyst layer prepared by ultrasonic spraying directly on the membrane showed the highest electrochemical surface area (ECSA) among the three anodes. In performance tests, ultrasonic spraying on the membrane yielded the highest power output because it produces the lowest ohmic resistance, the lowest anode potential, and the highest ECSA. By coating the catalyst membrane directly with ultrasonic spraying, we prepared a DFAFC with maximum power density as high as 245 mW cm−2 using 5 M formic acid with 2 mg cm−2 of catalyst loading.

Original languageEnglish
Pages (from-to)6413-6420
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number12
DOIs
Publication statusPublished - 22 Mar 2018

Fingerprint

Formic acid fuel cells (FAFC)
spraying
formic acid
Spraying
fuel cells
ultrasonics
Ultrasonics
catalysts
Catalysts
Anodes
membranes
Membranes
cell anodes
anodes
paints
Paint
Acoustic impedance
Coating techniques
performance tests
Formic acid

Keywords

  • Catalyst layer
  • Coating technique
  • Direct formic acid fuel cell
  • Ultrasonic spraying

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Performance of a direct formic acid fuel cell fabricated by ultrasonic spraying. / Zainoodin, A. M.; Tsujiguchi, T.; Mastar @ Masdar, Mohd Shahbudin; Kamarudin, S. K.; Osaka, Y.; Kodama, A.

In: International Journal of Hydrogen Energy, Vol. 43, No. 12, 22.03.2018, p. 6413-6420.

Research output: Contribution to journalArticle

Zainoodin, A. M. ; Tsujiguchi, T. ; Mastar @ Masdar, Mohd Shahbudin ; Kamarudin, S. K. ; Osaka, Y. ; Kodama, A. / Performance of a direct formic acid fuel cell fabricated by ultrasonic spraying. In: International Journal of Hydrogen Energy. 2018 ; Vol. 43, No. 12. pp. 6413-6420.
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