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Title

Methanol-tolerant M-N-C catalysts for oxygen reduction reactions in acidic media and their application in direct methanol fuel cells

AuthorsLo Vecchio, Carmelo; Sebastián del Río, David ; Lázaro Elorri, María Jesús ; Aricò, Antonino Salvatore; Baglio, Vincenzo
KeywordsM-N-C catalysts
Direct methanol fuel cell
Methanol tolerance
Oxygen reduction reaction
Issue Date11-Dec-2018
PublisherMultidisciplinary Digital Publishing Institute
CitationCatalysts 8(12): 650 (2018)
AbstractDirect methanol fuel cells (DMFCs) are emerging technologies for the electrochemical conversion of the chemical energy of a fuel (methanol) directly into electrical energy, with a low environmental impact and high efficiency. Yet, before this technology can reach a large-scale diffusion, specific issues must be solved, in particular, the high cost of the cell components. In a direct methanol fuel cell system, high capital costs are mainly derived from the use of noble metal catalysts; therefore, the development of low-cost electro-catalysts, satisfying the target requirements of high performance and durability, represents an important challenge. The research is currently addressed to the development of metal–nitrogen–carbon (M–N–C) materials as cheap and sustainable catalysts for the oxygen reduction reaction (ORR) in an acid environment, for application in polymer electrolyte fuel cells fueled by hydrogen or alcohol. In particular, this mini-review summarizes the recent advancements achieved in DMFCs using M–N–C catalysts. The presented analysis is restricted to M–N–C catalysts mounted at the cathode of a DMFC or investigated in rotating disk electrode (RDE) configuration for the ORR in the presence of methanol in order to study alcohol tolerance. The main synthetic routes and characteristics of the catalysts are also presented.
Publisher version (URL)http://dx.doi.org/10.3390/catal8120650
URIhttp://hdl.handle.net/10261/173585
DOI10.3390/catal8120650
E-ISSN2073-4344
Appears in Collections:(ICB) Artículos
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