Bifunctional anode catalysts for direct methanol fuel cells
نویسندگان
چکیده
منابع مشابه
Bifunctional anode catalysts for direct methanol fuel cells
Using the binding energy of OH* and CO* on close-packed surfaces as reactivity descriptors, we screen bulk and surface alloy catalysts for methanol electro-oxidation activity. Using these two descriptors, we illustrate that a good methanol electro-oxidation catalyst must have three key properties: (1) the ability to activate methanol, (2) the ability to activate water, and (3) the ability to re...
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Liquid feed direct methanol fuel cells (DMFC) are promising candidates for portable power applications. However, owing to the problems associated with expensive Pt-based catalysts, viz., CO poisoning, a promising approach is to use complex oxides of the type ABO3 (A = Sr, Ce, La, etc. and B = Co, Fe, Ni, Pt, Ru, etc.).
متن کاملRecent progress in the development of anode and cathode catalysts for direct methanol fuel cells
nt matter & 2013 0.1016/j.nanoen.2 thor. Tel.: +82 54 . nt_tiw123@yahoo Abstract Continuous growth in global energy demand has sparked concerns about energy security and environmental sustainability. In the past two decades, attempts have been made in the development of innovative energy technologies. The direct methanol fuel cell (DMFC) is among the most promising alternative energy sources fo...
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Catalyst supports are known to play important role in governing overall catalyst activity and durability. Here, a new type of SnO2eTiO2 solid solution (TixSn1-xO2) support was prepared via a solvothermal method with substitution of Ti4þ by Sn4þ in the TiO2 lattice. Furthermore, the TixSn1-xO2 was combined with conventional carbon black (Vulcan XC-72) to prepare a hybrid support (TixSn1-xO2eC) f...
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PtRu catalyst is a promising anodic catalyst for direct methanol fuel cells (DMFCs) but the slow reaction kinetics reduce the performance of DMFCs. Therefore, this study attempts to improve the performance of PtRu catalysts by adding nickel (Ni) and iron (Fe). Multiwalled carbon nanotubes (MWCNTs) are used to increase the active area of the catalyst and to improve the catalyst performance. Elec...
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ژورنال
عنوان ژورنال: Energy & Environmental Science
سال: 2012
ISSN: 1754-5692,1754-5706
DOI: 10.1039/c2ee21455e