A5100362836- Lignin and Wood Chemistry
- Biochemical and biochemical processes
- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- Fermentation and Sensory Analysis
- Advanced Photocatalysis Techniques
- Enzyme-mediated dye degradation
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
- Thermochemical Biomass Conversion Processes
- Oxidative Organic Chemistry Reactions
- Carbon dioxide utilization in catalysis
- Plant Gene Expression Analysis
- Phase Equilibria and Thermodynamics
- Advanced Cellulose Research Studies
- Nanomaterials for catalytic reactions
- Polymer composites and self-healing
- Copper-based nanomaterials and applications
- Ammonia Synthesis and Nitrogen Reduction
- Ionic liquids properties and applications
- Coal and Its By-products
- Inorganic Fluorides and Related Compounds
- Photopolymerization techniques and applications
- Synthesis and Catalytic Reactions
Northeast Forestry University
2025
University of Graz
2024
University of Groningen
2019-2024
Hainan University
2024
Fuzhou University
2021-2023
Xuchang University
2023
Liaoning Technical University
2023
Northwest A&F University
2015-2020
Beijing Forestry University
2018
Ministry of Agriculture and Rural Affairs
2017
Stabilization of reactive intermediates is an enabling concept in biomass fractionation and depolymerization. Deep eutectic solvents (DES) are intriguing green reaction media for processing; however undesired lignin condensation a typical drawback most acid-based DES processes. Here we describe ternary systems composed choline chloride oxalic acid, additionally incorporating ethylene glycol (or other diols) that provide the desired 'stabilization' function efficient lignocellulose...
Lignin holds the key for maximizing value extraction from lignocellulosic biomass. This is currently hindered by application of fractionation methods that significantly alter lignin structure to give highly recalcitrant materials. For this reason, it can be beneficial use less-severe conditions allow efficient with retention β-aryl ether (β-O-4) content. Here, we present a detailed study on mild alcohol-based organosolv aim understanding how achieve balance between efficiency and resulting...
Epoxy resin thermosets (ERTs) are an important class of polymeric materials. However, owing to their highly cross-linked nature, they suffer from poor recyclability, which contributes unacceptable level environmental pollution. There is a clear need for the design inherently recyclable ERTs that based on renewable resources. We present synthesis and closed-loop recycling fully lignocellulose-derivable epoxy (DGF/MBCA), prepared dimethyl ester 2,5-furandicarboxylic acid (DMFD),...
Methodologies for the high-yield recovery of lignin with retention its native CO bonded structure is an essential prerequisite many novel high-end applications. Enzymatic residual isolation such a methodology that leaves untouched by using enzymatic desaccharification. Thus, series representative lignocellulose substrates (birch, pine, walnut shell and reed) were evaluated effective isolation, emphasis on effect purity. The enzyme loading ball milling severity studied tracking saccharides...
Ternary deep eutectic solvents (DESs) are gaining increased attention to serve as a cheap green alternative medium for the processing of lignocellulosic biomass. For example, mixtures choline chloride (ChCl), ethylene glycol (EG), and oxalic acid (OA) were recently explored fractionation biomass into its main components. Interestingly, during this processing, recovered lignin was structurally modified by incorporation EG, which altered solubility properties led need different recovery...
The requirement for efficient and green conversion technologies has prompted hydrothermal processing as a promising treatment option sustainable biorefinery industry. been applied to process plenty of lignocellulose materials, yielding abundant high value-degraded products, especially the products in liquid fraction. Therefore, it is essential systematically evaluate degraded aqueous fraction by comprehensive analysis structural characterization during treatment. Rapeseed straw was...
Technical lignins are an attractive and renewable source for the production of aromatic chemicals. However, efficient depolymerization technical to valuable low-molecular-weight chemicals is challenging due its recalcitrant nature. Here, we report use nonprecious metal-based, monometallic Ni (prereduced) bimetallic NiMo (in situ sulfided) catalysts supported on mesoporous alumina, either as such or doped with Si, Mg, Ti, a solvent-free catalytic hydrotreatment (batch, 400 °C, 4 h reaction...
The development of sustainable epoxy vitrimers with outstanding mechanical strength and facile self-healing capabilities are great significance for prolonging the lifespan enhancing reliability electronic devices. In this study, we present a castor oil-derived vitrimer (ASB-ECO) featuring dual dynamic networks enabled by rationally designed ester-imine bonds an aromatic Schiff base-conjugated crosslinker architecture. This molecular design strategy effectively enhances properties vegetable...
Paper sludge is a solid waste by-product abundantly produced in the paper industry and contains fine minerals lignocellulosic biomass. In this contribution, ex-situ catalytic fast pyrolysis of with high mineral content ca. 71 wt% reported for first time demonstrated pilot-scale unit (feeding rate 11.3 kg h−1) using granular Na2CO3/γ-Al2O3 catalyst (loading 650 g) to produce high-grade bio-oil at temperature 475 ± 5 °C (pre-screened pyroprobe) upgrading 500 °C. Besides, > 99 could be...
The precise elucidation of native lignin structures plays a vital role for the development "lignin first" strategies such as reductive catalytic fractionation. structure and composition starting material has major impact on product yield distribution. Here, differences in from birch, pine, reed, walnut shell were investigated by combining detailed analysis whole cell wall material, residual enzyme lignin, milled wood lignin. results 2D heteronuclear single quantum coherence NMR could be...
Lignin is an abundant natural biopolymer that has the potential to act as a renewable feedstock for valuable aromatic compounds via selective catalytic depolymerization. In recent years, elegant, mild, hydrogen neutral C–O bond cleavage methodologies have been developed on model yielding acetophenone derivatives. However, none of these reported be effective once applied lignin. One reasons this highly functionalized nature native lignin β-O-4 motif, which often not taken into account in used...
Kraft lignin is an abundantly available side product from the pulp and paper industry. It has a complex aromatic structure great potential to serve as feedstock for renewable chemicals. In this communication, we show that simple mechanochemical pretreatment (viz., ball milling) of commercial Indulin AT kraft before solvent-free hydrotreatment results in 15% increase recovered oil yield with more alkylphenols 33% reduction solids compared unmilled sample. This raises carbon efficiency toward...
Fast pyrolysis is an efficient technology to convert lignocellulosic biomass a liquid product. However, the high contents of oxygenated compounds and water hinder direct utilization oils. Here, we report upgrading concept obtain products with improved product properties enriched in valuable low molecular weight chemicals particularly alkylphenols. It entails two steps, viz. i) in-situ staged condensation at multiple kg scale followed by ii) catalytic hydrotreatment selected fractions using...
Biomass-derived fast pyrolysis liquids (PLs) are not directly applicable as transportation fuels due to their high oxygen content and limited storage stability. Catalytic hydrotreatment is an efficient technology convert such PLs finished or intermediates that can be used a co-feed for existing oil refinery units. In this paper, we report catalyst screening studies the mild of using commercially available Ni Cu-based PRICAT catalysts at rather conditions (200 °C, initial 140 bar H2 pressure)...