Dissertation > Excellent graduate degree dissertation topics show

Study on Performance of Stainless Steel Coated with Silver as Bipolar Plate of PEMFC

Author: WangHongTao
Tutor: GuanDeLin
School: Dalian Maritime University
Course: Marine Engineering
Keywords: Proton exchange membrane fuel cell 316L stainless steel silver-plated plate Heat treatment Self-assembled monolayers Chromium passivation
CLC: TM911.4
Type: Master's thesis
Year: 2010
Downloads: 58
Quote: 0
Read: Download Dissertation

Abstract


The bipolar plate is one of the key components of proton exchange membrane fuel cell (PEMFC) . The pros and cons of the bipolar plate performance has a direct impact on the reliability , stability and longevity of proton exchange membrane fuel cell (PEMFC) . Substantial increase in the stability of the material of the bipolar plate , conductivity and corrosion performance , reduced thickness and weight is a proton exchange membrane fuel cell (PEMFC) commercialized premise . Stainless steel is the most potential more a thin metal bipolar plate materials must go through before surface modification application , but due to its poor corrosion resistance . The stainless steel surface of silver has been the actual production of the application of a stainless steel surface modification method, but due to the silver plating layer there is often more micropores , so that the stainless steel corrosion resistance improved by greatly limiting . In this paper, the oven heat treatment , vacuum heat treatment and self-assembled monolayers and chrome-free passivation process on 316L stainless steel silver-plated plate processing , in order to further enhance the silver-plated stainless steel plate corrosion resistance . 0.5mol / L H2SO4 2mg / L F - ( simulated PEMFC environment ) solution to study the electrochemical properties of the silver-plated plate of 316L stainless steel at different temperatures and at different times after heat treatment , and the results show that the oven 150 ℃ × 2h and vacuum 180 ℃ × 2h after heat treatment the better performance of 316L stainless steel silver-plated plate , and both corrosion resistance in simulated PEMFC environment less , than those without a substantial increase in heat-treated 316L stainless steel silver-plated plate . Vacuum at 180 ° C, 2h after heat treatment 316L stainless steel silver-plated plate thermodynamic stability and surface silver layer dense than silver-plated plate of 316L stainless steel oven 150 ℃ × 2h after heat treatment . Self- assembled film and chromium - free passivation Process 316L Stainless Steel Silver plate surface was more smooth , microporous significantly reduced ; electrochemical performance test results show that the self - assembled monolayer and chrome-free passivation 0.3V anodic polarization potential process for silver-plated plate of 316L stainless steel corrosion resistance or less , silver-plated plate than untreated 316L stainless steel are significantly improved . 316L stainless steel the silvered plate surface film formation the dense but no chromium passivation process better than the self-assembled film processing .

Related Dissertations

  1. The Design and Implementation of Control System for Wire-steel Heat Treatment Direct-fired Furnace,TP273
  2. Semi-solid / hot extruded hypereutectic Al-Fe alloy heat Mechanism,TG166.3
  3. Hot extruded Mg-Zn-Zr-Gd alloy microstructure and mechanical properties,TG379
  4. Mg-Zn alloy microstructure and mechanical properties,TG146.22
  5. TC4 alloy pulsed laser deposition of hydroxyapatite microstructure and properties of,TG146.23
  6. Microwave-assisted combustion synthesis FeCoNiCuAl_x high entropy alloy microstructure and properties,TG139
  7. The Effect of Direct Electric Resistance Heat Treatment on the Mechanical Properties of Orthodontic NiTi Archwires,R783.5
  8. A molecular dynamics study of aqueous solution in the hot steel surface state of motion,TG142.15
  9. Research on Microstructure Evolution in Pre-heat Treatment and Cold Ring Rolling,TG142.15
  10. The Research on Production Technology, Microstructure and Mechanical Properties of AZ31 Magnesium Alloy Thin Sheet,TG339
  11. Mechanism of Heat Treatment in Improving Chilling Tolerance of Peach Fruit and in Silico Cloning of a Related Phospholipase D Gene,S662.1
  12. Research on Multi-tungsten Alloy Plating,TQ153.2
  13. Study on the Corrosion Resistance of Ni-Sn-P Alloy Deposits,TQ153.2
  14. Preparation and Study of Glass-ceramics Based on Converter Slag,TQ171.1
  15. Development of proton exchange membrane fuel cells with carbon paper,TQ127.11
  16. Development of Heavy 9Ni Steel Plate Product Process for Ultra-low-temperature Application,TG142.15
  17. The Numerical Simulation of Flow and Temperature Field in the Car Bottom Type Heat Treatment Furnace,TG155.1
  18. Study on the Microstructures and the Mechanical Properties of Mg-Gd-Y-Zr Alloys,TG146.22
  19. Numerical Analysis of Flow Field of Gas in Lateral Circulation in T6 Heat-treatment Solution Furnace Transported by Triple-tiered Roller,TG155.1
  20. Study on Properties of New Seawater Resistant Stainless Steel,TG142.71
  21. Study on Microstructures and Properties of Medium Chromium Alloy Cast Steel Roller,TG142.1

CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Chemical power sources,batteries, fuel cells > Fuel cell
© 2012 www.DissertationTopic.Net  Mobile