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Pd2Sn [010] nanorods as a highly active and stable ethanol oxidation catalyst

AuthorsLuo, ZhiShan; Lu, Jianmin; Flox, Cristina; Nafria, Raquel; Genç, Aziz ; Arbiol, Jordi ; Ibáñez, Maria; Morante, Joan Ramon; Cabot, Andreu
Issue Date2016
PublisherRoyal Society of Chemistry (UK)
CitationJournal of Materials Chemistry A 4(42): 16706-16713 (2016)
AbstractThe development of highly active, low cost and stable electrocatalysts for direct alcohol fuel cells remains a critical challenge. While PdSn has been reported as an excellent catalyst for the ethanol oxidation reaction (EOR), here we present DFT analysis results showing the (100) and (001) facets of orthorhombic PdSn to be more favourable for the EOR than (010). Accordingly, using tri-n-octylphosphine, oleylamine (OLA) and methylamine hydrochloride as size and shape directing agents, we produced colloidal PdSn nanorods (NRs) grown in the [010] direction. Such PdSn NRs, supported on graphitic carbon, showed excellent performance and stability as an anode electrocatalyst for the EOR in alkaline media, exhibiting 3 times and 10 times higher EOR current densities than that of PdSn and Pd nanospheres, respectively. We associate this improved performance with the favourable faceting of the NRs.
Identifiersdoi: 10.1039/C6TA06430B
e-issn: 2050-7496
issn: 2050-7488
Appears in Collections:(CIN2) Artículos
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