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contributor authorWang, Long
contributor authorMao, Hong
contributor authorZhou, Xiao
contributor authorXu, Qun
contributor authorLi, Qiao
date accessioned2017-05-09T01:19:24Z
date available2017-05-09T01:19:24Z
date issued2015
identifier issn2381-6872
identifier otherfc_012_04_041001.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/158387
description abstractWelldispersed and low Pt content Pt–Ru/C nanoparticles were prepared by a developed impregnating reduction method with sodium citrate as stabilizer. The asprepared Pt–Ru/C catalysts were characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), and energy dispersive Xray (EDX) analysis. TEM showed that the Pt–Ru particles were quite uniformly distributed on the surface of the carbon with an average particle size of 3.5–4.5 nm. The effect of pH values on methanol electrooxidation reaction was examined by cyclic voltammetry (CV) and chronoamperometry (CA). Preadsorbed CO monolayer stripping was used to evaluate the antipoisoning ability. The results showed that Pt–Ru/C (pH = 8) catalyst had the highest catalytic activity and stability toward the oxidation of methanol. Finally, comparing Pt–Ru/C (Pt–Ru 20 wt.%, Pt/Ru = 1:1) catalysts with Pt/C (Pt 20 wt.%), the onset potential was 200 mV lower and electrochemical active area was much bigger.
publisherThe American Society of Mechanical Engineers (ASME)
titleThe Impregnating Reduction Method for Synthesis of Pt–Ru Nanoparticles and Its Catalytic Performance for Methanol Electro oxidation
typeJournal Paper
journal volume12
journal issue4
journal titleJournal of Fuel Cell Science and Technology
identifier doi10.1115/1.4029874
journal fristpage41001
journal lastpage41001
identifier eissn2381-6910
treeJournal of Fuel Cell Science and Technology:;2015:;volume( 012 ):;issue: 004
contenttypeFulltext


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