NDLI: Non‐destructive platinum catalyst‐replenishment method for deteriorated polymer electrolyte membrane fuel cells

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Non‐destructive platinum catalyst‐replenishment method for deteriorated polymer electrolyte membrane fuel cells

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Jaeyeon Kim Hongnyung Yoo Hyeok Kim Dasol Kim Geon Hwi Kim Obeen Kwon Heesoo Choi Hyeonjin Cha Taehyun Park
Abstract	Abstract A novel method for replenishing platinum catalysts on an electrolyte membrane of polymer electrolyte membrane fuel cell (PEMFC) is studied. The method injects electrocatalyst‐supplementing ink into a pre‐assembled fuel cell in a simple and non‐destructive manner. For replenishing, straightforward catalyst‐replenishment equipment and corresponding protocol are proposed. The protocol consists of injection, penetration, and purge processes. As a feasibility study, the method is performed on fuel cells with pristine membranes. Target fuel cells for this study include a membrane‐assembled cell without catalyst layers (CLs) (Cell 1) and a cell assembled with a membrane‐coated cathodic CL (Cell 2). An open‐circuit voltage of 0.804 V in Cell 1 and a current of 77 mA in Cell 2 are measured, as supported through electrochemical impedance spectroscopy. Results of energy‐dispersive X‐ray spectroscopy and X‐ray photoelectron spectroscopy also support the presence of platinum catalysts.
Related Links	https://doi.org/10.1002/ese3.1029
e-ISSN	20500505
DOI	10.1002/ese3.1029
Journal	Energy Science & Engineering
Issue Number	2
Volume Number	10
Language	English
Publisher	Wiley
Publisher Date	2022-01-01
Publisher Place	United Kingdom
Access Restriction	Open
Subject Keyword	Technology Science Catalyst Layer Deterioration Catalyst Replenishment Electrochemical Impedance Spectroscopy Fuel Cell Cleaning Polymer Electrolyte Membrane Fuel Cell
Content Type	Text
Resource Type	Article

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