Oxidative conversion of lignin over cobalt-iron mixed oxides prepared via the alginate gelation

被引：7
|
作者：
Hdidou, L. [1 ,2 ]
Kouisni, L. [3 ]
Manoun, B. [1 ,4 ]
Hannache, H. [1 ,2 ]
Solhy, A. [5 ]
Barakat, A. [3 ,6 ]
机构：
[1] Mohammed VI Polytech Univ UM6P, Mat Sci & Nanoengn Dept, Benguerir, Morocco
[2] Univ Hassan II Casablanca, LIMAT, Fac Sci Ben MSik, Casablanca, Morocco
[3] Mohammed VI Polytech Univ UM6P, AgroBioSci Dept, Benguerir, Morocco
[4] Univ Hassan I, LS3M, Khourigba, Morocco
[5] Mohammed VI Polytech Univ UM6P, Benguerir, Morocco
[6] Univ Montpelier, UMR IATE, CIRAD, Montpellier SupAgro,INRA, Montpellier, France
来源：
CATALYSIS COMMUNICATIONS | 2018年 / 117卷
关键词：
Heterogeneous catalysis; Biomass; Lignin; Catalytic processes; Catalyst preparation; MODEL COMPOUNDS; DEPOLYMERIZATION; NANOPARTICLES; CATALYSTS; CO3O4; CHEMISTRY; CONIFERYL; PROMOTION; ALCOHOL; SINAPYL;
D O I：
10.1016/j.catcom.2018.08.027
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：
The depolymerization of polymer lignin model to low molecular weight products was studied in water, at 200 degrees C under 100 MPa of 10% O-2 using cobalt-iron mixed oxides as catalysts. These nanostructured oxides with different Co/Fe ratios were prepared via alginate gelation. X-ray diffraction, scanning electron microscope, and size exclusion chromatography were used to study the influence of the Fe/Co ratios on the structure and the proprieties of the oxides as well as the morphology, the structure, and the composition of the obtained degraded products. The results showed that the oxides used in this study were versatile catalysts with a high catalytic activity for lignin depolymerization. Furthermore, these oxides demonstrated high yield and high selectivity towards aromatic compounds.
引用
收藏
页码：99 / 104
页数：6
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