Affiliation:
1. College of Chemistry and Chemical Engineering Institute for Sustainable Energy and Resources Qingdao University Qingdao Shandong 266071 China
2. School of Materials Science and Engineering Ocean University of China Qingdao Shandong 266100 China
Abstract
AbstractProton exchange membrane fuel cells (PEMFCs) are gaining significant interest as an attractive substitute for traditional fuel cells, with higher energy density, lower environmental pollution, and better operation efficiency. However, the cathode reaction, i.e., the oxygen reduction reaction (ORR), is widely proved to be inefficient, and therefore an obstacle to the widespread development of PEMFCs. The requirement for affordable highly‐efficient ORR catalysts is extremely urgent to be met, especially at fuel cell level. Unfortunately, most previous reports focus on the ORR performance at rotating disk electrodes (RDE) level instead of membrane electrode assembly (MEA) level, making it harder to evaluate ORR catalysts operating under real vehicle conditions. Obviously, it is extremely necessary to develop an in‐depth understanding of the structure‐activity relationship of highly‐efficient ORR catalysts applied at MEA level. In this work, an overview of the latest advances in ORR catalysts is provided with an emphasis on their performance at MEA level, hoping to cover the novel and systemic insights for innovative and efficient ORR catalyst design and applications in PEMFCs.
Funder
Natural Science Foundation of Shandong Province
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Subject
General Materials Science,General Chemistry