Pd₂Sn [010] nanorods as a highly active and stable ethanol oxidation catalyst
Luo, Zhishan (Centre de Recerca en Energia de Catalunya)
Lu, Jianmin (Chinese Academy of Sciences. Dalian Institute of Chemical Physics)
Flox, Cristina (Institut de Recerca en Energia de Catalunya)
Nafria, Raquel (Institut de Recerca en Energia de Catalunya)
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Llorca, Jordi (Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques)
Ibáñez, Maria (Institut de Recerca en Energia de Catalunya)
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya)
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)

Date:	2016
Abstract:	The development of highly active, low cost and stable electrocatalysts for direct alcohol fuel cells remains a critical challenge. While Pd₂Sn 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 Pd₂Sn nanorods (NRs) grown in the [010] direction. Such Pd₂Sn 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.
Note:	Número d'acord de subvenció MINECO/MAT2014-59961-C2
Note:	Número d'acord de subvenció MINECO/SEV-2013-0295
Note:	Número d'acord de subvenció AGAUR/2014/SGR-1638
Note:	Número d'acord de subvenció AGAUR/2013/BP-A00344
Rights:	Tots els drets reservats.
Language:	Anglès.
Document:	article ; recerca ; acceptedVersion
Subject:	Anode electrocatalyst ; Critical challenges ; Ethanol oxidation ; Ethanol oxidation reaction ; Graphitic carbons ; Pd nanospheres ; Size and shape ; Tri-n-octylphosphine
Published in:	Journal of materials chemistry A, Vol. 4, issue 42 (2016) , p. 16706-16713, ISSN 2050-7496

DOI: 10.1039/c6ta06430b

Postprint 9 p, 1.5 MB

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Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles