Tailored Palladium-Platinum Nanoconcave Cubes as High Performance Catalysts for the Direct Synthesis of Hydrogen Peroxide

Geun Ho Han, Xiangyun Xiao, Jaeyoung Hong, Kyu Joon Lee, Soohyung Park, Jae Pyoung Ahn, Kwan Young Lee, Taekyung Yu

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)

    Abstract

    To obtain high catalytic properties, finely modulating the electronic structure and active sites of catalysts is important. Herein, we report the design and economical synthesis of Pd@Pt core-shell nanoparticles for high productivity in the direct synthesis of hydrogen peroxide. Pd@Pt core-shell nanoparticles with a partially covered Pt shell on a Pd cube were synthesized using a simple direct seed-mediated growth method. The synthesized Pd@Pt core-shell nanoparticles were composed of high index faceted Pt on the corners and edges, while the Pd-Pt alloy was located on the terrace area of the Pd cubes. Because of the high-indexed Pt and Pd-Pt alloy sites, the synthesized concave Pd@Pt7 nanoparticles exhibited both high H2 conversion and H2O2 selectivity compared with Pd cubes.

    Original languageEnglish
    Pages (from-to)6328-6335
    Number of pages8
    JournalACS Applied Materials and Interfaces
    Volume12
    Issue number5
    DOIs
    Publication statusPublished - 2020 Feb 5

    Bibliographical note

    Funding Information:
    T.Y. acknowledges financial support from the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIP) (NRF-2014R1A5A1009799, 2019M3E6A1103866, and NRF-2016M3D1A1021140). K.-Y.L. acknowledges financial support from the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIP) (NRF-2016M3D1A1021140).

    Publisher Copyright:
    © 2020 American Chemical Society.

    Keywords

    • concave shell
    • direct HO synthesis
    • palladium
    • platinum
    • seed-mediated synthesis

    ASJC Scopus subject areas

    • General Materials Science

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