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http://dx.doi.org/10.7844/kirr.2012.21.2.034

Effects of PtMn composition on carbon supported PtMn catalysts for PEMFC  

Yoo, Sung-Yeol (Korean Research Institute of Chemical Technology, Energy Materials Research Center)
Kang, Suk-Min (Korean Research Institute of Chemical Technology, Energy Materials Research Center)
Lee, Jin-A (Korean Research Institute of Chemical Technology, Energy Materials Research Center)
Rhee, Choong-Kyun (Department of Chemistry, Chungnam National University)
Ryu, Ho-Jin (Korean Research Institute of Chemical Technology, Energy Materials Research Center)
Publication Information
Resources Recycling / v.21, no.2, 2012 , pp. 34-40 More about this Journal
Abstract
$Pt_{10}$/C, $Pt_9Mn_1$/C, $Pt_7Mn_3$/C electrocatalysts for Polymer Electrolyte Membrane Fuel Cells(PEMFCs) were synthesized by reduction with HCHO and their activity as a oxygen reduction reaction(ORR) was examined at half cell. The electrochemical oxygen reduction reaction(ORR) was studied by using a glaasy carbon electrode through cyclic voltammetric curves(CV) in a 1 M $H_2SO_4$ solution. The ORR activities of $Pt_9Mn_1$/C were higher than $Pt_{10}$/C, $Pt_7Mn_3$/C. Also potential-current curves of $Pt_9Mn_1$/C at 0.9, 0.8, 0.7, 0.6V for 5minutes respectively were higher than $Pt_{10}$/C, $Pt_7Mn_3$/C. Physical characterization was made by using x-ray diffraction(XRD) and transmission electron microscope(TEM). The TEM images of $Pt_9Mn_1$/C, $Pt_{10}$/C catalysts showed homogenous particle distribution with particle size of about 2.7 nm, 3 nm respectively and then the XRD results showed that the crystalline structure of the synthesized catalysts are seen FCC structure.
Keywords
Polymer electrolyte membrane fuel cell; Oxgen reduction reaction; Carbon; Electrocatalyst; Mn composition;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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