Skoči na glavni sadržaj

Journal of Electrochemical Science and Engineering, Vol. 8 No. 1, 2018.

Izvorni znanstveni članak

https://doi.org/10.5599/jese.487

Insights into electrochemical dealloying of Cu out of Au-doped Pt-alloy nanoparticles at the sub-nano-scale

Matija Gatalo orcid id orcid.org/0000-0002-5041-7280 ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Primož Jovanović ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Francisco Ruiz-Zepeda orcid id orcid.org/0000-0002-2637-3433 ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Andraž Pavlišič ; Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry, Hajdrihova 19, SI-1000, Ljubljana, Slovenia
Ana Robba ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Marjan Bele ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Goran Dražić orcid id orcid.org/0000-0001-7809-8050 ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Miran Gaberšček orcid id orcid.org/0000-0002-8104-1693 ; Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Nejc Hodnik orcid id orcid.org/0000-0002-7113-9769 ; Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry, Hajdrihova 19, SI-1000, Ljubljana, Slovenia

Puni tekst: engleski pdf 1.092 Kb

str. 87-100

preuzimanja: 430

citiraj

Sažetak

Pt alloy nanoparticles present the most probable candidate to be used as the cathode cathodic oxygen reduction reaction electrocatalyst for achieving commercialization targets of the low-temperature fuel cells. It is therefore very important to understand its activation and degradation processes. Besides the ones known from the pure Pt electrocatalysts, the dealloying phenomena possess a great threat since the leached less-noble metal can interact with the polymer membrane or even poison the electrocatalyst. In this study, we present a solution, supported by in-depth advance electrochemical characterization, on how to suppress the removal of Cu from the Pt alloy nanoparticles.

Ključne riječi

Electrocatalysis; EFC-ICP-MS; IL-TEM; Pt alloy; ORR

Hrčak ID:

194870

URI

https://hrcak.srce.hr/194870

Datum izdavanja:

3.3.2018.

Posjeta: 1.095 *