Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes

• Ngôn ngữ: eng
• ISBN-13: 978-3731512349
• ISBN: KSP/1000150805
• Thông tin xuất bản: KIT Scientific Publishing, 2024
• Mô tả vật lý: 1 online resource (178 p.)
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 461689
• Chủ đề: 1. Chlor-alkali electrolysis; 2. Three-phase model; 3. Electrochemical Mass Spectroscopy; 4. Inhomogeneous electrode structure; 5. Chloralkali-Elektrolyse; 6. Dreiphasen Modellierung; 7. Elektrochemische Massenspektroskopie; 8. Maxwell-Stefan Diffusion; 9. Inhomogene Elektrodenstruktur; 10. Electrical engineering

Tóm tắt

In this work, the first simulation model of oxygen depolarized cathodes (ODC), which are silver catalyst-based gas diffusion electrodes, is presented that considers the phase equilibrium of the gas-liquid interface and structure-related inhomogeneities in electrolyte distribution. By means of the model it has been identified that mass transport of water and ions in the liquid phase is a crucial factor for electrode performance and how it is influenced by the electrode structure.