Harnessing 'big data' via meta-analysis of commercial Pt/C measurements for oxygen reduction reaction

Developing low-cost and highly efficient electrocatalysts for oxygen reduction reaction (ORR) to replace commercial Pt/C has always been desired to greatly reduce the cost of polymer electrolyte membrane (PEM) fuel cells. The parameter of half-wave potential (E1/2) obtained from linear-sweep voltammetry (LSV) in O2-saturated acid/alkaline medium on a rotating disk electrode (RDE) is commonly used for characterizing the ORR performance of all kinds of new electrocatalysts. With higher value of E1/2, the ORR performance becomes better. For comparison, the E1/2 value of Pt/C is extensively used as a benchmark.

from Phys.org - latest science and technology news stories https://ift.tt/3Eyr5Sn

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