caa a22 4500 477049192 CHVBK 20180405111337.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00242049 doi (NATIONALLICENCE)springer-10.1007/BF00242049 Chemical and morphological characterization of a direct methanol fuel cell based on a quaternary Pt-Ru-Sn-W/C anode [Elektronische Daten] [A. Aricò, P. Cretì, N. Giordano, V. Antonucci, P. Antonucci, A. Chuvilin] Conventional and ‘paste process' methods were investigated to fabricate the membrane/electrode assembly (M&E) for application in a vapour-feed direct methanol fuel cell. A quaternary Pt-RuSn-W/C and a Pt/C catalysts were employed for methanol oxidation and oxygen reduction, respectively. The structure and chemical composition of the catalysts were investigated by transmission electron microscopy (TEM) and X-ray powder diffraction (XRD). A crystalline Pt f.c.c. phase was found to prevail in both catalysts. Agglomeration and twinned particles were frequently observed in the Pt-Ru-Sn-W/C catalyst. Electrochemical investigations were performed by a.c.-impedance spectroscopy and galvanostatic polarization. The ‘paste process' based assembly showed a significantly lower uncompensated resistance and an approximately two-fold power density increase with respect to the conventional assembly. According to the scanning electron microscopy analysis the observed results were attributed to improved bonding between catalysts and perfluorosulfonic membrane and to a larger extension of the three-phase reaction zone in the ‘paste process' based assembly. Chapman & Hall, 1996 Aricò A. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut Cretì P. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut Giordano N. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut Antonucci V. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut Antonucci P. Institute of Chemistry, Faculty of Engineering, University of Reggio Calabria, via E. Cuzzocrea 48, 89100, Reggio Calabria, Italy aut Chuvilin A. Institute of Catalysis, 630090, Novosibirsk, Russia aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/9(1996-09-01), 959-967 0021-891X 26:9<959 1996 26 10800 https://doi.org/10.1007/BF00242049 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00242049 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aricò A. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut NATIONALLICENCE 700 1- Cretì P. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut NATIONALLICENCE 700 1- Giordano N. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut NATIONALLICENCE 700 1- Antonucci V. Institute CNR-TAE, via Salita S. Lucia sopra Contesse 39, 98126, S. Lucia Messina, Italy aut NATIONALLICENCE 700 1- Antonucci P. Institute of Chemistry, Faculty of Engineering, University of Reggio Calabria, via E. Cuzzocrea 48, 89100, Reggio Calabria, Italy aut NATIONALLICENCE 700 1- Chuvilin A. Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/9(1996-09-01), 959-967 0021-891X 26:9<959 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer