Recent Advances in the Catalytic Conversion of Cellulose

Vyver, Stijn Van de; Geboers, Jan; Jacobs, Pierre; Sels, Bert F.

doi:10.1002/cctc.201000302

Cited by 538 publications

(277 citation statements)

References 160 publications

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“…Heterogeneous catalysts are expected to overcome these problems as various types of the catalysts can be designed and applied in a wide range of reaction conditions. Furthermore, solid catalysts are easily recovered and reused [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Catalytic transformation of cellulose into platform chemicals

Yabushita

Kobayashi

Fukuoka

2014

Applied Catalysis B: Environmental

267

142

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Conversion of biomass to renewable and valuable chemicals has attracted global interest in order to build up sustainable societies. Cellulose is the most abundant and non-food biomass; however, the low reactivity of cellulose has prevented its use in chemical industry except for the paper manufacturing. The heterogeneous catalysis for the conversion of cellulose has been expected to overcome this issue, because various types of heterogeneous catalysts can be designed and applied in a wide range of reaction conditions. Furthermore, solid catalysts are easily recovered and reused. In this review article, we show the present situation and perspective of heterogeneous catalysis for the transformation of cellulose into useful platform 2 chemicals.

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Section: Introductionmentioning

confidence: 99%

Catalytic transformation of cellulose into platform chemicals

Yabushita

Kobayashi

Fukuoka

2014

Applied Catalysis B: Environmental

267

142

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“…The durability and robustness of Fe(OTf) 3 and Hf(OTf) 4 are demonstrated with a large scale synthesis of octenes from 2-octanol. As a proof of concept for the upgrading of essential oils to alkenes, tea tree oil is converted to olens using the aforementioned metal triate catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, we present the correlation between the oxophilicity and the Lewis-acidity of metal triates in the dehydration of alcohols, and the aptitude of the selected transition metal triates, Fe(OTf) 3 and Hf(OTf) 4 , to produce olens from various oxygen containing biomass-based compounds under solventfree conditions. The durability and robustness of Fe(OTf) 3 and Hf(OTf) 4 are demonstrated with a large scale synthesis of octenes from 2-octanol.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5][6] In addition to lignocellulose, terpenes are a versatile class of organic compound widely available from biomass, containing different functionalities, such as alcohols, esters and ethers. 7,8 In this respect, the defunctionalization of terpenes offers an interesting opportunity to produce high value biomass-based olens for biopolymer applications as well as for other purposes.…”

Section: Introductionmentioning

confidence: 99%

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Transition metal triflate catalyzed conversion of alcohols, ethers and esters to olefins

et al. 2018

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Herein, we report an efficient transition metal triflate catalyzed approach to convert biomass-based compounds, such as monoterpene alcohols, sugar alcohols, octyl acetate and tea tree oil, to their corresponding olefins in high yields. The reaction proceeds through C-O bond cleavage under solventfree conditions, where the catalytic activity is determined by the oxophilicity and the Lewis acidity of the metal catalyst. In addition, we demonstrate how the oxygen containing functionality affects the formation of the olefins. Furthermore, the robustness of the used metal triflate catalysts, Fe(OTf) 3 and Hf(OTf) 4 , is highlighted by their ability to convert an over 2400-fold excess of 2-octanol to octenes in high isolated yields.

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“…Cellulose, the most abundant renewable polymer available, is produced by nature at an annual rate of 10 11 to 10 12 tons (Hae-ri et al 2014). It is a homopolysaccharide that is formed from linearly connecting D-glucose units condensed through the β(1−4) glycosidic bonds (Nishiyama et al 2002;Van de Vyver et al 2011). This natural polymer has a 2-fold screw axis along the chain direction.…”

Section: Introductionmentioning

confidence: 99%

Effective Preparation of Bamboo Cellulose Fibers in Quaternary Ammonium/DMSO Solvent

Jiang¹,

Miao²,

Yu³

et al. 2016

BioResources

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A novel, efficient, and direct blend of solvents, tetrabutylammonium acetate/dimethyl sulfoxide (TBAA/DMSO), was used for the dissolution and regeneration of bamboo pulp. Regenerated fibers were successfully prepared by a wet spinning process. The bamboo pulp without any pretreatment was readily soluble in the solvent under mild conditions. The dissolution process was observed using a confocal laser scanning microscope (CLSM). Rheological properties of the cellulose solutions at various concentrations were investigated. The regenerated fibers prepared by coagulation in ethanol were characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), and an electronic tensile tester. The SEM images showed that the regenerated fibers possessed a smooth surface and circular cross-section, and the XRD and FT-IR results revealed that the fibers exhibited a cellulose II structure. The thermostability and mechanical properties of the fibers was also investigated. Keywords INTRODUCTIONRenewable resources are of importance in our modern society because of their positive effects on agriculture, the environment, and the economy. Because of the limited existing quantities of fossil supplies and the recent environmental conservation regulations, biopolymers being used as renewable materials are gaining considerable importance. Cellulose, the most abundant renewable polymer available, is produced by nature at an annual rate of 10 11 to 10 12 tons (Hae-ri et al. 2014). It is a homopolysaccharide that is formed from linearly connecting D-glucose units condensed through the β(1−4) glycosidic bonds (Nishiyama et al. 2002;Van de Vyver et al. 2011). This natural polymer has a 2-fold screw axis along the chain direction. The degree of polymerization (DP) of the macromolecule can vary from 100 to 20,000 depending on the sources (Zhang et al. 2006). Lignocellulose, which refers to the chemical composition of plant-based material, occupies an important position as a raw material for papermaking, viscose fibers, bio-ethanol, etc.Among natural plants, bamboo is rapidly grown, an early harvested vegetable, and has a high adaptability, unlike trees that suffer insect infestation. Bamboo is a renewable natural bioresource that is abundant in many parts of the world. After being grown for three years, bamboo can be felled every year within several decades to 100 years (He et al. 2007). It has several advantages, including small environmental load, rapid growth, renewability, relatively high strength, and good flexibility (Liu et al. 2010). Bamboo is considered an important biopolymer with useful applications in various fields, including textiles (Teli and (Liu et al. 2004), using a viscose process. However, the conventional viscose process causes serious environmental problems that restrict the further development of regenerated bamboo fibers. Because of the high pollution and low efficiency of the traditional processes, it is imperative to explo...

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Recent Advances in the Catalytic Conversion of Cellulose

Cited by 538 publications

References 160 publications

Catalytic transformation of cellulose into platform chemicals

Catalytic transformation of cellulose into platform chemicals

Transition metal triflate catalyzed conversion of alcohols, ethers and esters to olefins

Effective Preparation of Bamboo Cellulose Fibers in Quaternary Ammonium/DMSO Solvent

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