Activity and stability assessment of Pt/C and FeNC catalysts through a channel flow cell
Lim S, Bhuyan P, Imhof T, Fortunato GV, Zhao W, Bienert J, Kramm UI, Ledendecker M (2026)
Publication Type: Journal article
Publication year: 2026
Journal
Book Volume: 546
Article Number: 147767
DOI: 10.1016/j.electacta.2025.147767
Abstract
We present a modular channel flow cell (CFC) platform integrated with online inductively coupled plasma mass spectrometry (ICP-MS) for real-time, temperature-resolved assessment of electrocatalyst stability. The system enables precise control of laminar flow, mass transport while also facilitating accurate kinetic and intrinsic degradation analyses. Using Pt/C and FeNC catalysts, we demonstrate the platform’s capability to quantify electrochemical surface area (ECSA) loss and metal dissolution under accelerated stress testing at both room temperature and 80 °C. Importantly, the CFC reliably reproduces degradation trends observed in rotating disk electrode (RDE) and membrane electrode assembly (MEA) setups, validating its predictive relevance. Operando ICP-MS measurements reveal temperature-enhanced dissolution of Pt and Fe, with Fe dissolution notably suppressed under oxygen due to reprecipitation phenomena. This study establishes the CFC–ICP-MS system as a robust tool bridging laboratory screening and device-level durability evaluation for fuel cell and electrolyser catalysts.
Involved external institutions
Germany (DE)How to cite
APA:
Lim, S., Bhuyan, P., Imhof, T., Fortunato, G.V., Zhao, W., Bienert, J.,... Ledendecker, M. (2026). Activity and stability assessment of Pt/C and FeNC catalysts through a channel flow cell. Electrochimica Acta, 546. https://doi.org/10.1016/j.electacta.2025.147767
MLA:
Lim, Sumin, et al. "Activity and stability assessment of Pt/C and FeNC catalysts through a channel flow cell." Electrochimica Acta 546 (2026).
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