التفاصيل البيبلوغرافية
| العنوان: |
Bridging the gap between highly active oxygen reduction reaction catalysts and effective catalyst layers for proton exchange membrane fuel cells |
| المؤلفون: |
Jiantao Fan, Ming Chen, Zhiliang Zhao, Zhen Zhang, Siyu Ye, Shaoyi Xu, Haijiang Wang, Hui Li |
| المجموعة: |
RePEc (Research Papers in Economics) |
| الوصف: |
Ultralow platinum loading and high catalytic performance at the membrane electrode assembly (MEA) level are essential for reducing the cost of proton exchange membrane fuel cells. The past decade has seen substantial progress in developing a variety of highly active platinum-based catalysts for the oxygen reduction reaction. However, these high activities are almost exclusively obtained from rotating disk electrode (RDE) measurements and have rarely translated into MEA performance. In this Review, we elucidate the intrinsic limitations that lead to a persistent failure to transfer catalysts’ high RDE activities into maximized MEA performance. We discuss catalyst-layer engineering strategies for controlling mass transport resistances at local catalyst sites, in the bulk of the catalyst layer and at the interfaces of the MEA to achieve high performance with ultralow platinum loading. We also examine promising intermediate testing methods for closing the gap between RDE and MEA experiments. ; The promising performance of low-platinum-loading oxygen reduction reaction catalysts in preliminary electrochemical tests is rarely translated into similarly impressive performance in real fuel cells. In this Review, Li and colleagues explore the underlying reasons for this issue and outline strategies to overcome it. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://www.nature.com/articles/s41560-021-00824-7Test |
| الإتاحة: |
https://www.nature.com/articles/s41560-021-00824-7Test |
| رقم الانضمام: |
edsbas.8EDC29E8 |
| قاعدة البيانات: |
BASE |
