Universitat Autònoma de Barcelona
We present a procedure to produce single-phase PdP nanocrystals (NCs). The approach involves the reaction of palladium(II) acetylacetonate and hexamethylphosphoroustriamide to nucleate defective Pd P nanoparticles that subsequently, with further phosphorous incorporation, crystallize into PdP . The synthesized PdP NCs were supported on reduced graphene oxide (rGO) and applied as electrocatalysts for ethanol oxidation. The activity of PdP toward the ethanol oxidation reaction (EOR) was over a threefold higher than that of Pd NCs prepared under similar conditions. Even better performance was obtained from PdP NCs supported on rGO, which showed current densities up to 51.4 mA cm and mass activities of 1.60 A mg , that is 4.8 and 15 times higher than Pd NCs. Besides, PdP NCs and PdP /rGO catalysts showed improved stability during EOR than Pd NCs and Pd/rGO.
English
Palladium diphosphide; Colloidal synthesis; Electrocatalysis; Ethanol oxidation
Ministerio de Economía y Competitividad ENE2016-77798-C4-3-R
Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327
Ministerio de Economía y Competitividad ENE2017-85087-C3
Ministerio de Economía y Competitividad SEV-2013-0295
Ministerio de Economía y Competitividad ENE2015-63969-R
Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-128
Applied catalysis. B, Environmental ; Vol. 242 (March 2019), p. 258-266
open access
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