Topics in Catalysis

, Volume 57, Issue 1–4, pp 255–264

Selective Electrocatalysis on Platinum Nanoparticles with Preferential (100) Orientation Prepared by Cathodic Corrosion

  • Matteo Duca
  • Paramaconi Rodriguez
  • Alexei I. Yanson
  • Marc T. M. Koper
Original Paper

DOI: 10.1007/s11244-013-0180-5

Cite this article as:
Duca, M., Rodriguez, P., Yanson, A.I. et al. Top Catal (2014) 57: 255. doi:10.1007/s11244-013-0180-5

Abstract

The “cathodic corrosion” method for nanoparticle synthesis has been used to produce Pt nano-crystals with a preferential (100) orientation. These particles are surfactant-free and electrochemically clean, featuring a significant percentage of (100) terrace sites, as confirmed by electrochemical characterization tests to establish the amount of (100) sites: blank voltammetry in H2SO4, adsorbed CO stripping, and Ge irreversible adsorption. The high catalytic activity of these preferentially oriented particles is confirmed for reactions preferring (100) sites, such as dimethyl ether oxidation, ammonia oxidation, and nitrite reduction in alkaline media. In the case of nitrite reduction it is demonstrated that, similarly to (100) terraces of a well-ordered Pt single crystal electrode, the (100) facets of the nano-crystals can steer the reaction towards the selective formation of N2. The use of an inexpensive preparation method to obtain nano-electrocatalysts that can perform selective electrocatalytic reactions such as ammonia oxidation and nitrite reduction, can pave the way for a new generation of practical catalysts for environmental and energy purposes.

Keywords

Pt(100) Platinum nanoparticles Cubic nanoparticles Nitrite reduction Cathodic corrosion Electrocatalysis 

Supplementary material

11244_2013_180_MOESM1_ESM.pdf (373 kb)
Supplementary material 1 (PDF 373 kb)

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Matteo Duca
    • 1
    • 2
  • Paramaconi Rodriguez
    • 1
    • 3
  • Alexei I. Yanson
    • 1
  • Marc T. M. Koper
    • 1
  1. 1.Leiden Institute of Chemistry, Leiden UniversityLeidenThe Netherlands
  2. 2.Sorbonne Paris Cité, Laboratoire d’Electrochimie MoléculaireUnité Mixte de Recherche Université–CNRS No. 7591, Université Paris DiderotParis Cedex 13France
  3. 3.School of Chemistry, The University of BirminghamBirminghamUK

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