TY - GEN
T1 - Electrohydrodynamic-jet deposition of Pt-based Fuel cell catalysts
AU - Hollinger, Adam S.
AU - Kenis, Paul J.A.
N1 - Funding Information:
The National Science Foundation through awards CMMI 03-28162 and CMMI 07-49028 to Nano-CEMMS, a Nanoscale Science & Engineering Center (NSEC), is gratefully acknowledged. The authors thank Fikile Brushett and Molly Jhong (University of Illinois) for the MicroCT images shown in Fig. 1. The authors also express thanks to John Rogers and Yong-Kwan Kim (University of Illinois) for stimulating discussions regarding e-jet printing.
Publisher Copyright:
© Copyright 2016 by ASME.
PY - 2016
Y1 - 2016
N2 - Fuel cell electrodes are traditionally fabricated by handpainting or spraying a catalyst ink onto a gas diffusion electrode or membrane. However, electrodes prepared via these techniques do not always have a uniform distribution of catalyst. Recently, electrohydrodynamic-jet (e-jet) printing has been developed as a method to deposit a variety of chemical and biological materials with excellent precision for various applications in electronics, biotechnology, and microelectromechanical systems. Here we demonstrate e-jet deposition of Pt-based fuel cell catalysts as a technique for achieving uniform catalyst distribution on microelectrodes. E-jet deposition is studied as a function of applied potential, and at 450 V, printed catalyst lines are very uniform at ∼10 μm in width. For electrode areas less than 1 mm2, deposition times are on the order of a few hours, which compares well with traditional hand-painting deposition times. Uniform catalyst distribution is important to reducing catalyst loading, and the deposition technique presented here shows significant possibility to produce electrodes with high uniformity.
AB - Fuel cell electrodes are traditionally fabricated by handpainting or spraying a catalyst ink onto a gas diffusion electrode or membrane. However, electrodes prepared via these techniques do not always have a uniform distribution of catalyst. Recently, electrohydrodynamic-jet (e-jet) printing has been developed as a method to deposit a variety of chemical and biological materials with excellent precision for various applications in electronics, biotechnology, and microelectromechanical systems. Here we demonstrate e-jet deposition of Pt-based fuel cell catalysts as a technique for achieving uniform catalyst distribution on microelectrodes. E-jet deposition is studied as a function of applied potential, and at 450 V, printed catalyst lines are very uniform at ∼10 μm in width. For electrode areas less than 1 mm2, deposition times are on the order of a few hours, which compares well with traditional hand-painting deposition times. Uniform catalyst distribution is important to reducing catalyst loading, and the deposition technique presented here shows significant possibility to produce electrodes with high uniformity.
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U2 - 10.115/FUELCELL2016-59454
DO - 10.115/FUELCELL2016-59454
M3 - Conference contribution
AN - SCOPUS:85002860951
T3 - ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2016, collocated with the ASME 2016 Power Conference and the ASME 2016 10th International Conference on Energy Sustainability
BT - ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2016, collocated with the ASME 2016 Power Conference and the ASME 2016 10th International Conference on Energy Sustainability
PB - American Society of Mechanical Engineers
T2 - ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2016, collocated with the ASME 2016 Power Conference and the ASME 2016 10th International Conference on Energy Sustainability
Y2 - 26 June 2016 through 30 June 2016
ER -
