Aerobic oxidation of 1,6-hexanediol to adipic acid over Au-based catalysts: the role of basic supports

被引：24

作者：

Capece, Noemi ^{[1
,2
]}

Sadier, Achraf ^{[1
]}

Palombo Ferraz, Camila ^{[1
]}

Thuriot-Roukos, Joelle ^{[1
]}

Pietrowski, Mariusz ^{[3
]}

Zielinski, Michal ^{[3
]}

Paul, Sebastien ^{[1
]}

Cavani, Fabrizio ^{[2
]}

Wojcieszak, Robert ^{[1
]}

机构：

[1] Univ Lille, Univ Artois, Cent Lille, CNRS,ENSCL,UMR 8181,UCCS, F-59000 Lille, France

[2] Univ Bologna, Dipartimento Chim Ind Toso Montanari, Viale Risorgimento 4, Bologna 40136, Italy

[3] Adam Mickiewicz Univ, Fac Chem, Uniwersytetu Poznanskiego 8, Poznan 61614, Poland

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2020年 / 10卷 / 08期

关键词：

LIQUID-PHASE OXIDATION; SELECTIVE OXIDATION; CYCLOHEXANE OXIDATION; PLATINUM CATALYSTS; PD; BIOMASS; SURFACE; SITES; TETRAHYDROPYRAN-2-METHANOL; HYDROGENOLYSIS;

D O I：

10.1039/d0cy00183j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

1,6-Hexanediol is one of the most relevant building blocks originating from biomass and it transforms into adipic acid for polymer synthesis. Herein, we examine the selective oxidation of 1,6-hexanediol to adipic acid over Au-based catalysts, in the aqueous phase, under base-free conditions. Particularly, the absence of a base allows the neutralization step at the end of the reaction to be avoided. The influences of various supports (MgO, BaO, NiO, and TiO2) and substrate/gold molar ratios were studied. Under the conditions used, the leaching of Mg in the mixture of MgF2 and MgO was limited by diluting the basic sites in the support. The highest selectivity to adipic acid (43%) was achieved at 110 degrees C under 15 bar of air in the presence of 2 wt% Au/0.6MgF(2)-0.4MgO.

引用

页码：2644 / 2651

页数：8

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