TY - JOUR
T1 - Maximization of quadruple phase boundary for alkaline membrane fuel cell using non-stoichiometric Α-MnO 2 as cathode catalyst
AU - Shi, X.
AU - Ahmad, S.
AU - Pérez-Salcedo, K.
AU - Escobar, B.
AU - Zheng, H.
AU - Mada Kannan, Arunachala
N1 - Funding Information:
The authors would like to thank CSIR , USAID (Global Development Research) and USAID (US-Pakistan Centers for Advanced Studies) for financial support. We acknowledge the use of facilities within the Eyring Materials Center at Arizona State University.
Publisher Copyright:
© 2018 Hydrogen Energy Publications LLC
PY - 2019/1/8
Y1 - 2019/1/8
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-MnO 2 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-MnO 2 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.
KW - Alkaline membrane fuel cell
KW - Oxygen reduction reaction
KW - Quadruple phase boundary optimization
KW - α-MnO nanorods
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U2 - 10.1016/j.ijhydene.2018.11.042
DO - 10.1016/j.ijhydene.2018.11.042
M3 - Article
AN - SCOPUS:85057403088
SN - 0360-3199
VL - 44
SP - 1166
EP - 1173
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 2
ER -