A sacrificial support method (SSM) was successfully developed and adopted for preparation of self-supported, open-frame non-PGM electrocatalysts. The full control of catalysts morphology, accessibility of active sites, improved mass-transport was found as benefits of SSM. The catalysts were comprehensively characterized by BET, SEM, TEM, XRD and XPS methods. Catalytic activity for ORR was measured in alkaline, acidic and neutral media using an RRDE experiment. The influence of experimental parameters on final catalytic activity was studied. It was found that the using SSM it is possible to prepare highly active and durable non-PGM electrocatalysts for ORR.

Sacrificial support method: Design of open-frame non-PGM catalysts

245th National Meeting (2013)

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