Effects of sintering-resistance and large metal-support interface of alumina nanorod-stabilized Pt nanoparticle catalysts on the improved high temperature water gas shift reaction activity

Indri Yati, Muhammad Ridwan, Go Een Jeong, Yunsu Lee, Jae Wook Choi, Chang Won Yoon, Dong Jin Suh, Jeong Myeong Ha

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Pt nanoparticles stabilized with alumina nanorods (Pt@Al2O 3) were synthesized by a simple preparation method using a mixture of Pt nanoparticles, an alumina precursor, an organic surfactant, and a reducing agent. Because the alumina nanorods stabilized Pt nanoparticles, the sintering of Pt nanoparticles was significantly suppressed during a high temperature water gas shift reaction, demonstrating 1.7-13.6 times higher CO conversions or 1.0-8.0 times higher TOF compared to other alumina-supported Pt catalysts. In addition, the increased metal-support interface for Pt@Al2O 3 significantly improved the water gas shift reaction activity.

Original languageEnglish
Pages (from-to)11-16
Number of pages6
JournalCatalysis Communications
Volume56
DOIs
Publication statusPublished - 5 Nov 2014

Keywords

  • Alumina nanorods
  • Metal-support interface
  • Pt nanoparticles
  • Water gas shift reaction

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