Title

Pt-Ni/C catalysts using different carbon supports for the cathode of the proton exchange membrane fuel cell (PEMFC)

RIS ID

69531

Publication Details

Wu, H, Wexler, D & Liu, H (2012), Pt-Ni/C catalysts using different carbon supports for the cathode of the proton exchange membrane fuel cell (PEMFC), Materials Chemistry and Physics, 136(2-3), pp. 845-849.

Abstract

20 wt.% PtNi/Ccatalysts were prepared using a chemical reduction method, with Vulcan XC-72 conducting furnace black and graphene as the carbonsupport, respectively, and compared to commercial BASF 20 wt.% Pt/C (using Vulcan XC-72 carbon as support). The materials were characterized by X-ray diffraction, and transmission electron microscopy (TEM). The electrochemical performance of the PtNi/Ccatalysts was evaluated by cyclic voltammetry, and by steady-state measurements. Electrochemical measurements indicate that the PtNi nanocatalysts exhibited improved activity in the oxygen reduction reaction (ORR) on graphene compared with those on Vulcan XC-72 carbon, and graphene could potentially provide much higher durability than XC-72. This suggests that graphene is a more effective catalystsupport than Vulcan XC-72 carbon.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.matchemphys.2012.08.007