Sean M. Mackinnon | Researchain

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Featured researches published by Sean M. Mackinnon.

Journal of The Electrochemical Society | 2006

Temperature Dependent Performance and In Situ AC Impedance of High-Temperature PEM Fuel Cells Using the Nafion-112 Membrane

Yanghua Tang; Jiujun Zhang; Chaojie Song; Hansan Liu; Jianlu Zhang; Haijiang Wang; Sean M. Mackinnon; Tim Peckham; Jing Li; Scott J. Mcdermid; Paul Kozak

In this paper, temperature dependent performance of a Nafion 112-based proton exchange membrane (PEM) fuel cell was investigated at different temperatures, 30 psig back pressure, and 100% relative humidity (RH). High cell performance of ca. 0.637 V at 1.0 A/cm 2 was obtained at 120°C. Cell voltage decreased when the temperature increased within the range of 80-20°C. An in situ ac impedance spectroscopy method under load was developed to diagnose the performance reduction. A semi-empirical treatment was initiated to obtain expressions for extinguishing the individual performance drops caused by reaction kinetics (charge-transfer resistance), membrane resistance, and mass-transfer limitation, respectively.

Archive | 2004

Reduced degradation of ion-exchange membranes in electrochemical fuel cells

Neil R. Andrews; Shanna Knights; Kenneth A. Murray; Scott J. Mcdermid; Sean M. Mackinnon; Siyu Ye

Archive | 2004

Process for preparing graft copolymers and membranes formed therefrom

Sean M. Mackinnon

Archive | 2004

Prevention of membrane contamination in electrochemical fuel cells

Gregory A. James; Sean M. Mackinnon; Duarte R. Sousa; David A. Summers; Warren M. Williams; Julie Bellerive; Myles L. Bos; Robert B. P. Rempel; Simon Farrington; Scott J. Mcdermid

Archive | 2004