Effect of Ti loading on structure-activity properties of Cu-Ni/Ti-MCM-41 catalysts in hydrodeoxygenation of guaiacol

被引：37

作者：

Hamid, S. B. Abd ^{[1
]}

Ambursa, Murtala M. ^{[1
,2
]}

Sudarsanam, Putla ^{[3
]}

Voon, Lee Hwei ^{[1
]}

Bhargava, Suresh K. ^{[3
]}

机构：

[1] Univ Malaya, Nanotechnol & Catalysis Res Ctr NANOCAT, Kuala Lumpur 50603, Malaysia

[2] Kebbi State Univ Sci & Technol Aliero, Dept Chem, Aliero, Nigeria

[3] RMIT Univ, Sch Sci, Ctr Adv Mat & Ind Chem, Melbourne, Vic 3001, Australia

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 94卷

关键词：

Biomass valorisation; Lignin model compound; Guaiacol; Hydrodeoxygenation; Cu-Ni/Ti-MCM-41; Ti loading; LIGNOCELLULOSIC BIOMASS; REACTION-MECHANISM; LIGNIN; OXIDE; OXIDATION; TITANIUM; HYDROGENATION; NANOPARTICLES; BENZYLAMINES; DIBENZOFURAN;

D O I：

10.1016/j.catcom.2017.02.006

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：

Various Cu-Ni/Ti-MCM-41 catalysts by varying Ti amount (Ti/Si = 10, 20 and 30%) were synthesized for hydrodeoxygenation of guaiacol and characterized by XRD, N-2 adsorption -desorption, NH3-TPD, H-2-TPR and Raman spectroscopy. The Ti loading shows an adverse effect on the catalyst surface area. But, more number of acidic sites (5173.55 mu mol/g) were found for 20% Ti loaded Cu-Niffi-MCM-41 catalyst. The 20% Ti loaded CuNiffi-MCM-41 catalyst shows a high guaiacol conversion (74.2%) and cyclohexane selectivity (48.81%) which is due to abundant acid and redox sites: acid sites initiate removal of oxygen via dehydration, while hydrogenation of guaiacol to cyclohexane is promoted by redox sites. (C) 2017 Published by Elsevier B.V.

引用

页码：18 / 22

页数：5

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