Sourov Ghosh, Ranjan K Sahu and C Retna Raj
We describe the decoration of multiwalled carbon nanotubes (MCNTs) with Pt–Pd alloy nanoelectrocatalysts of three different compositions and their electrocatalytic performance toward the oxygen reduction reaction (ORR). The decoration of the MCNTs involves polymer-assisted impregnation of metal precursors ##IMG## [http://ej.iop.org/images/0957-4484/23/38/385602/nano431900ieqn22.gif] {${\mathrm{PtCl}}_{6}^{2-}$} and ##IMG## [http://ej.iop.org/images/0957-4484/23/38/385602/nano431900ieqn23.gif] {${\mathrm{PdCl}}_{4}^{2-}$} and the subsequent reduction of the impregnated precursors by a modified polyol route. The composition of the catalyst was controlled by tuning the molar ratio of the precursors during their impregnation. Electron probe microscopic analysis shows that the catalysts have compositions of Pt 46 Pd 54, Pt 64 Pd 36 and Pt 28 Pd 72 . The Pt 46 Pd 54 a...
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We describe the decoration of multiwalled carbon nanotubes (MCNTs) with Pt–Pd alloy nanoelectrocatalysts of three different compositions and their electrocatalytic performance toward the oxygen reduction reaction (ORR). The decoration of the MCNTs involves polymer-assisted impregnation of metal precursors ##IMG## [http://ej.iop.org/images/0957-4484/23/38/385602/nano431900ieqn22.gif] {${\mathrm{PtCl}}_{6}^{2-}$} and ##IMG## [http://ej.iop.org/images/0957-4484/23/38/385602/nano431900ieqn23.gif] {${\mathrm{PdCl}}_{4}^{2-}$} and the subsequent reduction of the impregnated precursors by a modified polyol route. The composition of the catalyst was controlled by tuning the molar ratio of the precursors during their impregnation. Electron probe microscopic analysis shows that the catalysts have compositions of Pt 46 Pd 54, Pt 64 Pd 36 and Pt 28 Pd 72 . The Pt 46 Pd 54 a...
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