Alumina over-coating on Pd nanoparticle catalysts by atomic layer deposition: Enhanced stability and reactivity

Hao Feng, Junling Lu, Peter C. Stair, Jeffrey W. Elam

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

ALD Alumina was utilized as a protective layer to inhibit the sintering of supported nano-sized ALD Pd catalysts in the methanol decomposition reaction carried out at elevated temperatures. The protective ALD alumina layers were synthesized on Pd nanoparticles (1-2 nm) supported on high surface area alumina substrates. Up to a certain over-coat thickness, the alumina protective layers preserved or even slightly enhanced the catalytic activity and prevented sintering of the Pd nanoparticles up to 500 °C. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)512-517
Number of pages6
JournalCatalysis Letters
Volume141
Issue number4
DOIs
Publication statusPublished - Apr 1 2011

Keywords

  • Alumina over-coat
  • Atomic layer deposition
  • Methanol decomposition
  • Pd nanoparticles
  • Sintering

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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