Study of Formaldehyde and Formic Acid Contamination Effect on PEMFC

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The contamination effect of formaldehyde (HCHO) and formic acid (HCOOH) was studied using state-of-the-art automotive PEMFC stacks and with high fuel utilization and automotive-type operation with hydrogen recirculation. The results, measured at current density of 0.6 A/cm2, show that the contamination effect of formaldehyde was observable when the concentration was 2 ppm, 200 times higher than the current limit in the ISO 14687-2:2012 standard. The effect of formaldehyde was less than 10% compared to 2 ppm of CO in the same operating conditions. Moreover, the contamination effect of formic acid was barely measurable at 2 ppm, corresponding to a concentration 100 times the limit of the ISO standard. Thus, the limits of HCHO and HCOOH in the current ISO standard seem to be too strict.
Original languageEnglish
Pages (from-to) F718-F727
JournalJournal of the Electrochemical Society
Volume165
Issue number9
DOIs
Publication statusPublished - 22 Jun 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

formic acid
Formic acid
Proton exchange membrane fuel cells (PEMFC)
formaldehyde
Formaldehyde
contamination
Contamination
acids
Carbon Monoxide
Hydrogen
Current density
current density
hydrogen

Keywords

  • PEMFC impurities
  • hydrogen fuel impurities
  • hydrogen fuel standard

Cite this

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title = "Study of Formaldehyde and Formic Acid Contamination Effect on PEMFC",
abstract = "The contamination effect of formaldehyde (HCHO) and formic acid (HCOOH) was studied using state-of-the-art automotive PEMFC stacks and with high fuel utilization and automotive-type operation with hydrogen recirculation. The results, measured at current density of 0.6 A/cm2, show that the contamination effect of formaldehyde was observable when the concentration was 2 ppm, 200 times higher than the current limit in the ISO 14687-2:2012 standard. The effect of formaldehyde was less than 10{\%} compared to 2 ppm of CO in the same operating conditions. Moreover, the contamination effect of formic acid was barely measurable at 2 ppm, corresponding to a concentration 100 times the limit of the ISO standard. Thus, the limits of HCHO and HCOOH in the current ISO standard seem to be too strict.",
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Study of Formaldehyde and Formic Acid Contamination Effect on PEMFC. / Viitakangas, Jaana; Ihonen, Jari; Koski, Pauli; Reinikainen, Matti; Aarhaug, Thor Anders.

In: Journal of the Electrochemical Society, Vol. 165, No. 9, 22.06.2018, p. F718-F727.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Viitakangas, Jaana

AU - Ihonen, Jari

AU - Koski, Pauli

AU - Reinikainen, Matti

AU - Aarhaug, Thor Anders

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AB - The contamination effect of formaldehyde (HCHO) and formic acid (HCOOH) was studied using state-of-the-art automotive PEMFC stacks and with high fuel utilization and automotive-type operation with hydrogen recirculation. The results, measured at current density of 0.6 A/cm2, show that the contamination effect of formaldehyde was observable when the concentration was 2 ppm, 200 times higher than the current limit in the ISO 14687-2:2012 standard. The effect of formaldehyde was less than 10% compared to 2 ppm of CO in the same operating conditions. Moreover, the contamination effect of formic acid was barely measurable at 2 ppm, corresponding to a concentration 100 times the limit of the ISO standard. Thus, the limits of HCHO and HCOOH in the current ISO standard seem to be too strict.

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