2024-03-29T06:43:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1421152020-03-30T10:06:39Zcom_10261_35com_10261_5col_10261_288
DIGITAL.CSIC
author
Calderón Gómez, Juan Carlos
author
Moliner Álvarez, Rafael
author
Lázaro Elorri, María Jesús
funder
Consejo Superior de Investigaciones Científicas (España)
funder
Ministerio de Economía y Competitividad (España)
2017-01-04T08:51:26Z
2017-01-04T08:51:26Z
2016-08-27
Catalysts 6(9): 130 (2016)
2073-4344
http://hdl.handle.net/10261/142115
10.3390/catal6090130
http://dx.doi.org/10.13039/501100003339http://dx.doi.org/10.13039/501100003329
Platinum-based materials are accepted as the suitable electrocatalysts for anodes and cathodes in direct methanol fuel cells (DMFCs). Nonetheless, the increased demand and scarce world reserves of Pt, as well as some technical problems associated with its use, have motivated a wide research focused to design Pd-based catalysts, considering the similar properties between this metal and Pt. In this review, we present the most recent advancements about Pd-based catalysts, considering Pd, Pd alloys with different transition metals and non-carbon supported nanoparticles, as possible electrodes in DMFCs. In the case of the anode, different reported works have highlighted the capacity of these new materials for overcoming the CO poisoning and promote the oxidation of other intermediates generated during the methanol oxidation. Regarding the cathode, the studies have showed more positive onset potentials, as fundamental parameter for determining the mechanism of the oxygen reduction reaction (ORR) and thus, making them able for achieving high efficiencies, with less production of hydrogen peroxide as collateral product. This revision suggests that it is possible to replace the conventional Pt catalysts by Pd-based materials, although several efforts must be made in order to improve their performance in DMFCs.
openAccess
Palladium-based catalysts as electrodes for direct methanol fuel cells: a last ten years review
artículo de revisión
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URL
https://digital.csic.es/bitstream/10261/142115/1/catalysts-06-00130.pdf
File
MD5
db01964e8075b8fabcdec37e7123044d
453097
application/pdf
catalysts-06-00130.pdf