A parametric study of the direct formic acid fuel cell (DFAFC) performance and fuel crossover

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18 Citations (Scopus)

Abstract

The effect of formic acid concentration (2-20 M), operating temperature (30-70 °C), and relative humidity (RH 40-90%) on the direct formic acid fuel cell (DFAFC) performance and fuel crossover were studied. In addition, air and oxygen were used to investigate the effect of oxidant flow rate on DFAFC performance and fuel crossover by operating the DFAFC under three modes of reactant supply: passive, semi passive (oxidant supplied), and active (both oxidant and fuel supplied). Fuel crossover was determined by measuring the percentage of exhausted carbon dioxide (CO2) at the cathode using a CO2 analyzer, from which the equivalent formic acid crossover flux was calculated. The results indicate that the DFAFC performance and fuel crossover were affected by formic acid concentration, temperature, humidity, oxidant flow rate, and the mode of operation. Optimums of these operating parameters were established for obtaining high performance of the DFAFC. The relationships between these parameters and the performance and fuel crossover of the DFAFC are discussed in this paper.

Original languageEnglish
Pages (from-to)10267-10274
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number19
DOIs
Publication statusPublished - 24 Jun 2014

Fingerprint

Formic acid fuel cells (FAFC)
formic acid
fuel cells
crossovers
Oxidants
Formic acid
Atmospheric humidity
Flow rate
humidity
flow velocity
Carbon dioxide
Cathodes
Fluxes
operating temperature
Temperature
Oxygen
carbon dioxide
analyzers
Air
cathodes

Keywords

  • DFAFC
  • Fuel crossover
  • Parametric study
  • Semi passive

ASJC Scopus subject areas

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

Cite this

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title = "A parametric study of the direct formic acid fuel cell (DFAFC) performance and fuel crossover",
abstract = "The effect of formic acid concentration (2-20 M), operating temperature (30-70 °C), and relative humidity (RH 40-90{\%}) on the direct formic acid fuel cell (DFAFC) performance and fuel crossover were studied. In addition, air and oxygen were used to investigate the effect of oxidant flow rate on DFAFC performance and fuel crossover by operating the DFAFC under three modes of reactant supply: passive, semi passive (oxidant supplied), and active (both oxidant and fuel supplied). Fuel crossover was determined by measuring the percentage of exhausted carbon dioxide (CO2) at the cathode using a CO2 analyzer, from which the equivalent formic acid crossover flux was calculated. The results indicate that the DFAFC performance and fuel crossover were affected by formic acid concentration, temperature, humidity, oxidant flow rate, and the mode of operation. Optimums of these operating parameters were established for obtaining high performance of the DFAFC. The relationships between these parameters and the performance and fuel crossover of the DFAFC are discussed in this paper.",
keywords = "DFAFC, Fuel crossover, Parametric study, Semi passive",
author = "Rejal, {Siti Zuulaika} and {Mastar @ Masdar}, {Mohd Shahbudin} and Kamarudin, {Siti Kartom}",
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AU - Kamarudin, Siti Kartom

PY - 2014/6/24

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N2 - The effect of formic acid concentration (2-20 M), operating temperature (30-70 °C), and relative humidity (RH 40-90%) on the direct formic acid fuel cell (DFAFC) performance and fuel crossover were studied. In addition, air and oxygen were used to investigate the effect of oxidant flow rate on DFAFC performance and fuel crossover by operating the DFAFC under three modes of reactant supply: passive, semi passive (oxidant supplied), and active (both oxidant and fuel supplied). Fuel crossover was determined by measuring the percentage of exhausted carbon dioxide (CO2) at the cathode using a CO2 analyzer, from which the equivalent formic acid crossover flux was calculated. The results indicate that the DFAFC performance and fuel crossover were affected by formic acid concentration, temperature, humidity, oxidant flow rate, and the mode of operation. Optimums of these operating parameters were established for obtaining high performance of the DFAFC. The relationships between these parameters and the performance and fuel crossover of the DFAFC are discussed in this paper.

AB - The effect of formic acid concentration (2-20 M), operating temperature (30-70 °C), and relative humidity (RH 40-90%) on the direct formic acid fuel cell (DFAFC) performance and fuel crossover were studied. In addition, air and oxygen were used to investigate the effect of oxidant flow rate on DFAFC performance and fuel crossover by operating the DFAFC under three modes of reactant supply: passive, semi passive (oxidant supplied), and active (both oxidant and fuel supplied). Fuel crossover was determined by measuring the percentage of exhausted carbon dioxide (CO2) at the cathode using a CO2 analyzer, from which the equivalent formic acid crossover flux was calculated. The results indicate that the DFAFC performance and fuel crossover were affected by formic acid concentration, temperature, humidity, oxidant flow rate, and the mode of operation. Optimums of these operating parameters were established for obtaining high performance of the DFAFC. The relationships between these parameters and the performance and fuel crossover of the DFAFC are discussed in this paper.

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