Surface Structure Characterization of Shape and Size Controlled Pd Nanoparticles by Cu UPD: A Quantitative Approach

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Title: Surface Structure Characterization of Shape and Size Controlled Pd Nanoparticles by Cu UPD: A Quantitative Approach
Authors: Garnier, Emmanuel | Vidal-Iglesias, Francisco J. | Feliu, Juan M. | Solla-Gullón, José
Research Group/s: Electroquímica Aplicada y Electrocatálisis | Electroquímica de Superficies
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: Nanoparticles | Shape | Size | Surface structure | Electrocatalysis | Cu UPD
Knowledge Area: Química Física
Issue Date: 31-Jul-2019
Publisher: Frontiers Media
Citation: Garnier E, Vidal-Iglesias FJ, Feliu JM and Solla-Gullón J (2019) Surface Structure Characterization of Shape and Size Controlled Pd Nanoparticles by Cu UPD: A Quantitative Approach. Front. Chem. 7:527. doi: 10.3389/fchem.2019.00527
Abstract: The search for new surface sensitive probes that characterize the surface structure of shape and size-controlled nanoparticles is an interesting topic to properly understand the correlations between electrocatalytic properties and surface structure at the nanoscale. Herein, we report the use of Cu UPD to characterize, not only qualitatively but also quantitatively, the surface structure of different Pd nanoparticles with controlled particle shape and size. Thus, Pd nanoparticles with cubic, octahedral and rhombic dodecahedral shapes, that is, with preferential {100}, {111}, and {110} surface structures, respectively, were prepared. In addition, cubic Pd nanoparticles with different particles sizes and spherical (2–3 nm) Pd nanoparticles were also synthesized. Based on the Cu UPD results on Pd single crystals, a new approach is proposed to qualitatively and quantitatively determine the percentages of {100}, {111}, and {110} surface domains present at the surface of the different shape and size controlled Pd nanoparticles. The results reported clearly show the benefits of this Cu UPD to get detailed information of the surface structure of the nanoparticles according to their particle shape and size.
Sponsor: This work was conducted under the framework of the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), projects CTQ2016-76231-C2-2-R (AEI/FEDER, UE) and CTQ2016-76221-P (AEI/FEDER, UE). JS-G acknowledges financial support from VITC (Vicerrectorado de Investigación y Transferencia de Conocimiento) of the University of Alicante (UATALENTO16-02).
ISSN: 2296-2646
DOI: 10.3389/fchem.2019.00527
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Garnier, Vidal-Iglesias, Feliu and Solla-Gullón. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Peer Review: si
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