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Pd‐W Alloy Electrocatalysts and Their Catalytic Property for Oxygen Reduction
Author(s) -
Dai Y.,
Yu P.,
Huang Q.,
Sun K.
Publication year - 2016
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201600020
Subject(s) - alloy , catalysis , materials science , electrochemistry , cathode , transmission electron microscopy , chemical engineering , oxygen , carbon fibers , analytical chemistry (journal) , nanotechnology , metallurgy , chemistry , electrode , composite material , composite number , biochemistry , organic chemistry , engineering , chromatography
In order to design Pt‐free efficient cathode catalyst and promote the commercialization of fuel cells, different atomic ratio of carbon‐supported Pd‐W alloy catalysts were developed for oxygen reduction reaction (ORR). X‐ray diffraction (XRD) results show the Pd‐W alloys have the similar lattice characteristics to pure Pd. Transmission electron microscopy (TEM) and energy‐dispersive X‐ray spectroscopy (EDS) results show that the Pd‐W alloys disperse on the surface of carbon support uniformly. The results of the electrochemical tests show that the Pd 19 W/C has two‐fold mass activity over Pd/C, which is hopeful for the application as low‐cost cathode catalyst.