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- W2091846720 abstract "A high specific surface area (SSA) Pt–Ru–Os-based anode catalyst synthesized by a novel complexed sol–gel (CSG) process shows better catalytic activity in comparison to pure equi-atomic compositions of Pt–Ru anode catalysts synthesized by similar sol–gel processes. A homogeneous amorphous gel was successfully synthesized by complexing platinum(II) acetylacetonate, ruthenium(III) acetylacetonate and osmium(III) chloride with tetramethylammonium hydroxide (TMAH) used as a complexing agent. Phase-pure Pt(Ru,Os) and Pt(Ru) solid solutions possessing high specific surface area (∼110–120 m2/g) were successfully synthesized by controlled removal of carbonaceous species present in the as-prepared precursor generated from the CSG process. This has been successfully achieved by precise thermal treatments of the precursor using controlled oxidizing atmospheres. Results indicate that the nano-crystalline Pt(Ru,Os) solid solution of nominal composition 50 at%-Pt–40 at% Ru–10 at% Os possesses good chemical homogeneity, and reveals excellent catalytic activity, thus demonstrating the potential of the novel CSG process for synthesizing high-performance Pt–Ru–Os-based catalysts for direct methanol fuel cells." @default.
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- W2091846720 date "2009-06-01" @default.
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- W2091846720 title "Complexed sol–gel synthesis of improved Pt–Ru–Os-based anode electro-catalysts for direct methanol fuel cells" @default.
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- W2091846720 doi "https://doi.org/10.1016/j.jpcs.2009.05.014" @default.
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