期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 42, 期 4, 页码 2338-2348出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.09.220
关键词
316 stainless steel; Bipolar plates; PEMFC; Platinum; Active screen plasma; Single cell tests
资金
- European Commission [PIIF-GA-2012-327750]
- PSRC [EP/J018252/1]
- National Natural Science Foundation of China [51575267, 51322509]
- Top-Notch Young Talents Program of China
- NSFC-DFG Sino-German Research Project [GZ 1217]
- Outstanding Youth Foundation of Jiangsu Province of China [BK20130035]
- Program for New Century Excellent Talents in University [NCET-13-0854]
- Science and Technology Support Program
- Jiangsu Provincial Department of Science and Technology of China [BE2014009-2]
- 333 Project [BRA2015368]
- Aeronautical Science Foundation of China [2015ZE52051]
- Shanghai Aerospace Science and Technology Innovation Fund [SAST2015053]
- Fundamental Research Funds for the Central Universities [NE2013103, NP2015206, NZ2016108]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- China Scholarship Council (CSC)
- University of Birmingham
316 stainless steel has been regarded as one of the promising candidates to replace graphite for bipolar plate application. However, the relatively high electrical resistance caused by the formation of passive oxide film and the insufficient corrosion resistance in long-term operation are two main concerns of 316 stainless steel bipolar plates. Low temperature active screen plasma alloying technology shows the ability to reduce electrical resistance and enhance corrosion resistance of 316 stainless steel bipolar plates to some extent, but still can not satisfy the Department of Energy (DOE) requirements. In this paper, active screen plasma co-alloying treatments with nitrogen and platinum are conducted to modify the surface of 316 stainless steel. The surface morphology, phase constitute, chemical composition and layer structure of treated 316 stainless steel are fully studied. A dense, columnar structured and single phase Pt3Fe deposition layer is produced on the surface of 316 stainless steel after treatments. Thanks to the excellent electrical conductivity and corrosion resistance of Pt3Fe, the surface electrical conductivity and corrosion resistance are greatly enhanced and satisfies the DOE requirements, contributing to the significant improvement of single cell performances. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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