Structure sensitivity in L-arabinose oxidation over Au/Al2O 3 catalysts

Olga A. Simakova, Bright T. Kusema, Betiana C. Campo, Anne Riikka Leino, Krisztián Kordás, Veronique Pitchon, Päivi Mäki-Arvela, Dmitry Yu Murzin

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)

Abstract

Several Au/Al2O3 catalysts were prepared and evaluated in the oxidation of l-arabinose. Metal cluster size was varied by application of different preparation methods (DPU and DIE), washing agents (ammonia or water), calcination temperatures, and concentrations of the initial precursor solutions. The structure sensitivity of the reaction over these catalysts was proven. A volcano relationship of activity with the mean particle size was observed, the catalyst prepared by DPU being the most active one. The catalyst electric potential was correlated with the particle size by an inverse volcano shape. At 30% of conversion, the DPU sample exhibited the lowest potential.

Original languageEnglish
Pages (from-to)1036-1043
Number of pages8
JournalJournal of Physical Chemistry C
Volume115
Issue number4
DOIs
Publication statusPublished - 3 Feb 2011
MoE publication typeA1 Journal article-refereed

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