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

2 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

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)

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