Bulletin of the Korean chemical society | |
Polyol Synthesis of Ruthenium Selenide Catalysts for Oxygen Reduction Reaction | |
Seong Ihl Woo1  Ki Rak Lee1  | |
关键词: Ruthenium-chalcogenide; Fuel cell; Oxygen reduction reaction; Electro-catalysts; Methanol tolerant property; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
Ruthenium catalysts modified by selenium have been introduced as alternative materials to Pt in Direct methanol fuel cells (DMFCs). RuSe nano-particles were synthesized on the Vulcan XC72R carbon supports via polyol method. The prepared catalysts were electrochemically and physically characterized by cyclic voltammetry (CV,) linear sweep voltammetry, methanol tolerance test, X-ray diffraction (XRD), Transmission electron microscopy (TEM), Energydispersive Spectrometer (EDS) and X-ray photoelectron spectroscopy (XPS). Increasing the Se concentration up to 20 at % increased the electro-catalytic activity for the oxygen reduction. By increasing Se amount, Ru metallic form on the surface was increased. The Ru80Se20/C catalysts showed the highest oxygen reduction reaction (ORR) activity and outstanding methanol tolerant property in half cell tests as well as single cell test.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010241926ZK.pdf | 715KB | download |