Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 42, Issue 21, Pages 14734-14740Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.04.100
Keywords
Additive manufacturing; Bipolar plate; PEM electrolyzer cell; Hydrogen production; Stainless steel; Selective laser melting
Categories
Funding
- U.S. Department of Energy's National Energy Technology Laboratory, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office [DE-AC05-000R22725, DE-FE0011585]
- Center for Nanophase Materials Sciences
- U.S. Department of Energy [DE-AC05-00OR22725]
- UT-Battelle, LLC
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Additive manufacturing (AM) technology is capable of fast and low-cost prototyping from complex 3D digital models. To take advantage of this technology, a stainless steel (SS) plate with parallel flow field served as a combination of a cathode bipolar plate and a current distributor; it was fabricated using selective laser melting (SLM) techniques and investigated in a proton exchange membrane electrolyzer cell (PEMEC) in-situ for the first time. The experimental results show that the PEMEC with an AM SS cathode bipolar plate can achieve an excellent performance for hydrogen production for a voltage of 1.779 V and a current density of 2.0 A/cm(2). The AM SS cathode bipolar plate was also characterized by SEM and EDS, and the results show a uniform elemental distribution across the plate with very limited oxidization. This research demonstrates that AM method could be a route to aid cost-effective and rapid development of PEMECs. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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