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Nanofiber Cathode Catalyst Layer Model for a Proton Exchange Membrane Fuel Cell
Journal article   Peer reviewed

Nanofiber Cathode Catalyst Layer Model for a Proton Exchange Membrane Fuel Cell

Dennis O. Dever, Richard A. Cairncross and Yossef A. Elabd
Journal of fuel cell science and technology, v 11(4), pp 041007/1-041007/13
01 Aug 2014
DOI: https://doi.org/10.1115/1.4026985
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Electrochemistry Energy & Fuels Physical Sciences Science & Technology Technology
The cathode catalyst layer in a proton exchange membrane fuel cell is now known to contain ionomer nanofibers and experiments have demonstrated a fuel cell performance increase of similar to 10% due to those nanofibers. The experiments demonstrate that ionomer nanofibers have proton conductivities that exceed those of the bulk form of the ionomer by more than an order of magnitude. A new model of a proton exchange membrane fuel cell is presented here that predicts the effect of nanofibers on cell performance in terms of the enhanced nanofiber proton conductivity and other relevant variables. The model peak cell power density is similar to 7% greater for the case with 10% of the cathode catalyst layer ionomer in nanofiber form versus the same case without nanofibers. This difference is consistent with trends observed in previously published experimental results. These results are significant since they suggest alternative methods to reduce platinum loading in fuel cells and to optimize fuel cell performance.

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6 citations in Web of Science
6 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#7 Affordable and Clean Energy

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Web of Science research areas
Electrochemistry
Energy & Fuels
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