Thermal control of the defunctionalization of supported Au25(glutathione)18 catalysts for benzyl alcohol oxidation

Beilstein Journal of Nanotechnology

Zahraa Shahin^1¹  Hyewon Ji^1² 

[1] Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON), Villeurbanne, France^1;Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Laboratoire des Multimatériaux et Interfaces (LMI), Villeurbanne, France^2

关键词: benzyl alcohol oxidation;    glutathione;    gold nanoclusters;    partial defunctionalization;    supported catalyst;    zirconium oxide nanoparticles;   

DOI  :  10.3762/bjnano.10.21

学科分类：地球科学(综合)

来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften

【 摘 要 】

Au₂₅(SG)₁₈ (SG – glutathione) clusters deposited on ZrO₂ nanoparticles have been used as a catalyst for benzyl alcohol oxidation. Calcination was performed at different temperatures to study the ligand and particle size effect on the catalytic activity. In contrast to most gold nanoclusters which have to be completely defunctionalized for maximum catalytic activity, the partially defunctionalized Au₂₅(SG)₁₈@ZrO₂ catalyst, thermally treated at 300 °C, exhibits full conversion of benzyl alcohol within 15 h under atmospheric pressure with 94% selectivity towards benzaldehyde.

【 授权许可】

CC BY