Pt3Cu nanoparticles are deposited on multi wall carbon nanotubes (MWCNT) according to three different types of synthesis: a thermal reduction using an aprotic solvent (“thermal method”, TM), a chemical reduction using sodium borohydride (“chemical method”, CM), and an alloying method (the “alloying method”, AM). The catalysts are characterized by means of BET, FESEM, EDX, XRD, ICP-MS and XPS analyses. The obtained catalysts display a Pt loading of 19.6–19.8 wt.%, with a Pt/Cu atomic ratio of 2.60–2.80. The electrocatalytic activity towards ORR is assessed by RDE in acid conditions (0.1 M HClO4). The best activity belongs to the Pt3Cu/C catalyst prepared by chemical reduction method (–10.300 mA mgPt).

Influence of the preparation method on Pt3Cu/C electrocatalysts for the oxygen reduction reaction / MONTEVERDE VIDELA, ALESSANDRO HUGO; ALIPOUR MOGHADAM ESFAHANI, Reza; Peter, Ildiko; Specchia, Stefania. - In: ELECTROCHIMICA ACTA. - ISSN 0013-4686. - STAMPA. - 177:(2015), pp. 51-56. [10.1016/j.electacta.2015.02.040]

Influence of the preparation method on Pt3Cu/C electrocatalysts for the oxygen reduction reaction

MONTEVERDE VIDELA, ALESSANDRO HUGO;ALIPOUR MOGHADAM ESFAHANI, REZA;PETER, ILDIKO;SPECCHIA, STEFANIA
2015

Abstract

Pt3Cu nanoparticles are deposited on multi wall carbon nanotubes (MWCNT) according to three different types of synthesis: a thermal reduction using an aprotic solvent (“thermal method”, TM), a chemical reduction using sodium borohydride (“chemical method”, CM), and an alloying method (the “alloying method”, AM). The catalysts are characterized by means of BET, FESEM, EDX, XRD, ICP-MS and XPS analyses. The obtained catalysts display a Pt loading of 19.6–19.8 wt.%, with a Pt/Cu atomic ratio of 2.60–2.80. The electrocatalytic activity towards ORR is assessed by RDE in acid conditions (0.1 M HClO4). The best activity belongs to the Pt3Cu/C catalyst prepared by chemical reduction method (–10.300 mA mgPt).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2588394
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