Maximization of quadruple phase boundary for alkaline membrane fuel cell using non-stoichiometric α-MnO2 as cathode catalyst

X. Shi, S. Ahmad, K. Pérez-Salcedo, B. Escobar, H. Zheng, Arunachala Mada Kannan

Research output: Contribution to journalArticle

Abstract

Oxygen can only be reduced at the quadruple phase boundary (catalyst, carbon support, ionomer and oxygen) of the cathode catalyst layer with non-conducting electrocatalyst. To maximize the quadruple phase boundary sites is crucial to increase the peak power density of each membrane electrode assembly. The quadruple phase boundary is depending on the ratio of catalyst, carbon support and ionomer. The loading of catalyst layer is also crucial to the fuel cell performance. In this study, non-stoichiometric α-MnO2 manganese dioxide nanorod material has been synthesized and the ratios of carbon, ionomer and catalyst loadings were optimized in alkaline membrane fuel cell. In total, ten membrane electrode assemblies have been manufactured and tested. Taguchi design method has been applied in order to understand the effect of each parameter. The conclusion finds out the ionomer has more influence on the alkaline membrane fuel cell peak power performance than carbon and loading.

Original languageEnglish (US)
JournalInternational Journal of Hydrogen Energy
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Phase boundaries
Ionomers
fuel cells
Fuel cells
Cathodes
cathodes
membranes
Membranes
catalysts
Catalysts
Carbon
carbon
Catalyst supports
Electrodes
Oxygen
electrodes
electrocatalysts
Electrocatalysts
oxygen
dioxides

Keywords

  • Alkaline membrane fuel cell
  • Oxygen reduction reaction
  • Quadruple phase boundary optimization
  • α-MnO nanorods

ASJC Scopus subject areas

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

Cite this

Maximization of quadruple phase boundary for alkaline membrane fuel cell using non-stoichiometric α-MnO2 as cathode catalyst. / Shi, X.; Ahmad, S.; Pérez-Salcedo, K.; Escobar, B.; Zheng, H.; Mada Kannan, Arunachala.

In: International Journal of Hydrogen Energy, 01.01.2018.

Research output: Contribution to journalArticle

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AU - Shi, X.

AU - Ahmad, S.

AU - Pérez-Salcedo, K.

AU - Escobar, B.

AU - Zheng, H.

AU - Mada Kannan, Arunachala

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N2 - Oxygen can only be reduced at the quadruple phase boundary (catalyst, carbon support, ionomer and oxygen) of the cathode catalyst layer with non-conducting electrocatalyst. To maximize the quadruple phase boundary sites is crucial to increase the peak power density of each membrane electrode assembly. The quadruple phase boundary is depending on the ratio of catalyst, carbon support and ionomer. The loading of catalyst layer is also crucial to the fuel cell performance. In this study, non-stoichiometric α-MnO2 manganese dioxide nanorod material has been synthesized and the ratios of carbon, ionomer and catalyst loadings were optimized in alkaline membrane fuel cell. In total, ten membrane electrode assemblies have been manufactured and tested. Taguchi design method has been applied in order to understand the effect of each parameter. The conclusion finds out the ionomer has more influence on the alkaline membrane fuel cell peak power performance than carbon and loading.

AB - Oxygen can only be reduced at the quadruple phase boundary (catalyst, carbon support, ionomer and oxygen) of the cathode catalyst layer with non-conducting electrocatalyst. To maximize the quadruple phase boundary sites is crucial to increase the peak power density of each membrane electrode assembly. The quadruple phase boundary is depending on the ratio of catalyst, carbon support and ionomer. The loading of catalyst layer is also crucial to the fuel cell performance. In this study, non-stoichiometric α-MnO2 manganese dioxide nanorod material has been synthesized and the ratios of carbon, ionomer and catalyst loadings were optimized in alkaline membrane fuel cell. In total, ten membrane electrode assemblies have been manufactured and tested. Taguchi design method has been applied in order to understand the effect of each parameter. The conclusion finds out the ionomer has more influence on the alkaline membrane fuel cell peak power performance than carbon and loading.

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