The current performances of the small test fleets of vehicles powered by automotive fuel cells are impressive, reflecting 15 years of intense development of all aspects of proton exchange membrane (PEM) fuel cells that have brought the technology close to pre-commercial viability. But to move towards a genuinely practical technology that can be mass-produced cost-effectively, important further improvements are needed. This calls for a critical look at how we need to develop key components determining fuel-cell performance, durability and cost. A pivotal component is the electrocatalyst system that underpins fuel-cell operation, and excellent reviews of progress made in Pt-based fuel-cell catalyst development for automotive applications have been written from both an academic perspective focused on fundamentals and from a perspective focused on the requirements of the automotive companies. This review is provided from the perspective of a fuel-cell component supplier who needs to consider all factors that any electrocatalyst approach will need to meet if it is to be commercially successful. Following an overview of fuel cells and the challenges they need to meet for commercialization, I will consider the electrocatalyst system and the different approaches taken to ensure its performance meets automotive fuel-cell requirements.
Electrocatalyst approaches and challenges for automotive fuel cells
Nature ; 485 , 7401 ; 43-51
2012
9 Seiten, 4 Bilder, 1 Tabelle, 97 Quellen
Aufsatz (Zeitschrift)
Englisch
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