Preparation and Properties of PEDOT-PSS/Waterborne Acrylic Resin Coating
Source abstract
Abstract
Stainless steel (SS) is highly susceptible to corrosion in acidic environments, which significantly limits its applicability in such conditions. In this paper, a poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT-PSS)/waterborne acrylic resin (AR) composite coating was designed and prepared for enhancing the corrosion resistance of 304SS. Corrosion current density (jcorr) of the PEDOT-PSS/AR-coated 304SS at the simulated PEMFCs’ operating temperature (80 °C) is only 0.86 μA·cm−2 which achieves the 2025 DOE goal (jcorr < 1 μA·cm−2). The improved corrosion resistance would be attributed to both the anode protection and barrier effect provided by the PEDOT-PSS/AR coating. Moreover, the 304SS coated by the PEDOT-PSS/AR obtains a lower interfacial contact resistance (ICR) of 37.01 mΩ·cm2 at 1.4 MPa than that coated by the pure AR coating with the ICR of 167.95 mΩ·cm2. This eco-friendly, conducting, and anti-corrosive PEDOT-PSS/AR coating offers a new insight into high-performance applications for SS.
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Research context
OpenAlex topics: Conducting polymers and applications · Polymer Nanocomposite Synthesis and Irradiation · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Chemical Engineering, Nantong University, Nantong 226000, China
National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
Institute of High-End Textile, Nantong University, Nantong 226000, China
Funding
National Natural Science Foundation of China
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