Conversion of cellulose to high-yield glucose in water over sulfonated mesoporous carbon fibers with optimized acidity

Yang, Ying; Shao, Shuai; Yang, Feng; Brewe, Dale; Guo, Shangwei; Ren, Dongcheng; Hao, Shijie

doi:10.1039/d0gc04342g

Cited by 27 publications

(14 citation statements)

References 40 publications

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“…The Hara and Onda groups first reported the hydrolysis of cellulose to glucose using sulfonated carbon catalysts. , Since then, many researchers have used sulfonated carbons and put considerable effort into improving their catalytic performance and applicability. − The sulfonation of carbon materials introduces not only sulfonic groups but also acidic OFGs (oxygen-containing functional groups) such as phenol and carboxyl groups to the carbon surface. It has been recognized that, as a main active site, sulfonic groups can cut β-1,4-glycosidic bonds in cellulose, whereas the acidic OFGs promote the function of sulfonic groups.…”

Section: Introductionmentioning

confidence: 99%

In-Depth Analysis of Key Factors Affecting the Catalysis of Oxidized Carbon Blacks for Cellulose Hydrolysis

et al. 2021

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Carbon black is treated with each of three different oxidizing agents (nitric acid, air, and ozone) to introduce oxygencontaining functional groups (OFGs) and the resulting oxidized carbon blacks are used as model catalysts for the hydrolysis of cellulose. At the same time, they are thoroughly characterized by many techniques, especially in terms of surface chemistry, including the type/number of OFGs and the site where OFGs are formed in a carbon structure. Then, by correlating the catalytic activities toward the cellulose hydrolysis with the characterization results, key factors governing the catalysis are elucidated. As a result, this study reveals that two types of acidic OFGs, carboxyl groups (including those derived from the hydrolysis of acid anhydride and lactone groups in the reaction) and phenol groups (including those from lactone groups), act as catalytic sites with almost equal activity, as long as they are present on the external surface and thereby accessible to cellulose molecules.

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Section: Introductionmentioning

confidence: 99%

In-Depth Analysis of Key Factors Affecting the Catalysis of Oxidized Carbon Blacks for Cellulose Hydrolysis

et al. 2021

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“…Hydrolysis over a strong mineral acid (for example, HCl) allows nearly 100% conversion into monomers, but the process suffers from the heavy use of corrosive reagents, harsh reaction conditions and the generation of unwanted products. In recent years, recyclable and environmentally benign chemical catalytic systems using various solid acids such as Amberlyst 155 , sulfonated carbon 156 , 157 , oxidized carbon 158 , zeolites 159 and heterogenized polyoxometalates (that is, polyoxometalates transformed to insoluble solids by ion exchange or immobilized on the solid support) 160 have been established. Swelling of the dense cellulose domain to a loosely packed structure alleviates the secondary interaction, making hydrolysis more efficient.…”

Section: Conversion Through Ether Bond Cleavagementioning

confidence: 99%

A unified view on catalytic conversion of biomass and waste plastics

et al. 2022

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Originating from the desire to improve sustainability, producing fuels and chemicals from the conversion of biomass and waste plastic has become an important research topic in the twenty-first century. Although biomass is natural and plastic synthetic, the chemical nature of the two are not as distinct as they first appear. They share substantial structural similarities in terms of their polymeric nature and the types of bonds linking their monomeric units, resulting in close relationships between the two materials and their conversions. Previously, their transformations were mostly studied and reviewed separately in the literature. Here, we summarize the catalytic conversion of biomass and waste plastics, with a focus on bond activation chemistry and catalyst design. By tracking the historical and more recent developments, it becomes clear that biomass and plastic have not only evolved their unique conversion pathways but have also started to cross paths with each other, with each influencing the landscape of the other. As a result, this Review on the catalytic conversion of biomass and waste plastic in a unified angle offers improved insights into existing technologies, and more importantly, may enable new opportunities for future advances.

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“…The wettability (i.e., hydrophobicity and hydrophilicity) of the catalyst is also a key factor that influences the mass transfer of reactants and products and thereby the catalysis. − Mesoporous sulfonated melamine-formaldehyde resin (MSMF) with a superhydrophilicity has a higher activity than a conventional carbon-supported Pd catalyst in the hydrodeoxygenation of vanillin, possibly because of the good wettability of the MSMF for vanillin to improve mass transfer . The large number of hydrophilic functional groups in the sulfonated mesoporous carbon fibers obtained by the pyrolysis of FeCl 3 -impregnated fibers, combined with a highly mesoporous structure, is also reported to facilitate the mass transfer of cellulose, thus promoting its contact with the catalyst in the catalytic hydrolysis of cellulose to glucose in water . In the vanadium redox flow battery, compared to a bare carbon material (SSC-700), using the N-doped material (SSC/N-850) as an electrocatalyst significantly accelerates the mass transfer of V 2+ /V 3+ redox reaction, demonstrated by the larger slope of the curves for reduction and oxidation peak current versus the square root of scan rate (Figure a).…”

Section: Omc-supported Metals and Metal Oxides For Heterogeneous Cata...mentioning

confidence: 99%

Metal and Metal Oxide Supported on Ordered Mesoporous Carbon as Heterogeneous Catalysts

et al. 2023

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The evolution of model catalyst systems has experienced single-crystal surfaces of different transition metals and different crystal faces, two-dimensional systems with nanoparticles (NPs) deposited on a flat support surface, and threedimensional systems with NPs loaded into the high-surface-area supports such as ordered mesoporous materials. The latter two systems mimic the nanoparticle properties in industrial catalysts. Ordered mesoporous carbon (OMC) materials play unparalleled roles in catalysis, energy storage, adsorption, chromatographic separation, etc. because of their distinctive structure which allows Knudsen diffusion inside mesopores, the dispersion of loaded metals and oxides, and the embedment of metals inside pore walls. In this review, the synthesis routes of OMC-supported metal or metal oxide catalysts, including hard-templating and soft-templating methods, are briefly introduced. Mass transfer inside the mesopores, reactant chemisorption on the metals, discrimination of the different active species, and the catalytic reaction mechanism of the OMC-supported metal or metal oxide catalysts are systemically summarized, with the highlight of advantages in catalysis occurring inside mesopores. Understanding these molecular-dominated factors provides insight into controlling the highly active and selective catalytic reactions and, therefore, the design of industrial catalysts with a long life.

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Conversion of cellulose to high-yield glucose in water over sulfonated mesoporous carbon fibers with optimized acidity

Abstract: Hydrolysis of cellulose to high yield glucose in water remains challenging owing to the limited acidity and contact to substrate for sulfonated carbons. Herein, we report a unique sulfonated mesoporous...

Cited by 27 publications

References 40 publications

In-Depth Analysis of Key Factors Affecting the Catalysis of Oxidized Carbon Blacks for Cellulose Hydrolysis

In-Depth Analysis of Key Factors Affecting the Catalysis of Oxidized Carbon Blacks for Cellulose Hydrolysis

A unified view on catalytic conversion of biomass and waste plastics

Metal and Metal Oxide Supported on Ordered Mesoporous Carbon as Heterogeneous Catalysts

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