High surface area molybdenum nitride support for fuel cell electrodes

K. J. Blackmore, L. Elbaz, E. Bauer, E. L. Brosha, K. More, T. M. McCleskey, A. K. Burrell

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Alternative supports for polymer electrolyte membrane fuel cells were synthesized and catalytic activity was explored using electrochemical analysis. High surface area, molybdenum nitride supports were synthesized by rapidly heating a gel of polyethyleneimine bound molybdenum in a tube furnace under a forming gas atmosphere. Subsequent disposition of platinum through an incipient wetness approach lead to dispersed crystallites of platinum on the conductive support. All the ceramic materials were characterized with XRD, SEM, TEM and electrochemical analysis. The supports without platinum are highly stable to acidic aqueous conditions and show no signs of oxygen reduction reactivity (ORR). However, once the 20 wt platinum is added to the material, ORR activity comparable to XC72 based materials is observed.

Original languageEnglish
Pages (from-to)B1255-B1259
JournalJournal of the Electrochemical Society
Volume158
Issue number10
DOIs
StatePublished - 2011
Externally publishedYes

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