Search Results - "Zhurinsh, Aivars"

Study of levoglucosenone obtained in analytical pyrolysis and screw-type reactor, separation and distillation by Dobele, Galina, Zhurinsh, Aivars, Volperts, Aleksandrs, Jurkjane, Vilhelmine, Pomilovskis, Ralfs, Meile, Kristine

“…This research is dedicated to the study on the formation of levoglucosenone and other main volatiles from the catalytic pyrolysis with the addition of…”
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“Sweetwoods” Lignin as Promising Raw Material to Obtain Micro-Mesoporous Carbon Materials by Plavniece, Ance, Dobele, Galina, Djachkovs, Dmitrijs, Jashina, Lilija, Bikovens, Oskars, Volperts, Aleksandrs, Zhurinsh, Aivars

“…Biorefineries with the significant amounts of lignin as a by-product have a potential to increase business revenues by using this residue to produce high…”
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Thermochemical Activation of Wood with NaOH, KOH and H3PO4 for the Synthesis of Nitrogen-Doped Nanoporous Carbon for Oxygen Reduction Reaction by Dobele, Galina, Volperts, Aleksandrs, Plavniece, Ance, Zhurinsh, Aivars, Upskuviene, Daina, Balciunaite, Aldona, Niaura, Gediminas, Colmenares-Rausseo, Luis César, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus

“…Carbonization of biomass residues followed by activation has great potential to become a safe process for the production of various carbon materials for…”
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Lignocellulose pyrolysis by-products as an underestimated source of chemicals: separation and characterisation by Meile, Kristine, Dobele, Galina, Iljina, Nadezda, Zhurinsh, Aivars, Jurkjane, Vilhelmine

“…Within the valorisation of lignocellulosic biomass, it is important not only to isolate the dominant compounds, but also to extract and purify the by-products…”
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Influence of Chemical Activation Temperatures on Nitrogen-Doped Carbon Material Structure, Pore Size Distribution and Oxygen Reduction Reaction Activity by Aleksandrs Volperts, Ance Plavniece, Kätlin Kaare, Galina Dobele, Aivars Zhurinsh, Ivar Kruusenberg

“…The goal of this research was to synthesize activated nitrogen-doped nanocarbons with high specific surface area and adjustable pore size distribution using…”
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Enhancing the Wetting Properties of Activated Biochar by Oxidation with Hydrogen Peroxide by Liepins, Kalvis, Volperts, Aleksandrs, Dobele, Galina, Plavniece, Ance, Bikovens, Oskars, Sansonetti, Errj, Zhurinsh, Aivars

“…In order to explore the possibilities of increasing the hydrophilicity of carbon-based adsorbents, catalysts, or electrode materials in aqueous solutions, the…”
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Effect of Pretreatment on the Nitrogen Doped Activated Carbon Materials Activity towards Oxygen Reduction Reaction by Dobele, Galina, Plavniece, Ance, Volperts, Aleksandrs, Zhurinsh, Aivars, Upskuviene, Daina, Balciunaite, Aldona, Jasulaitiene, Vitalija, Niaura, Gediminas, Talaikis, Martynas, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus, Kvello, Jannicke, Colmenares-Rausseo, Luis César

“…Nitrogen-doped activated carbons with controlled micro- and mesoporosity were obtained from wood and wastes via chemical processing using pre-treatment…”
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Black Liquor and Wood Char-Derived Nitrogen-Doped Carbon Materials for Supercapacitors by Tamasauskaite-Tamasiunaite, Loreta, Jablonskienė, Jolita, Šimkūnaitė, Dijana, Volperts, Aleksandrs, Plavniece, Ance, Dobele, Galina, Zhurinsh, Aivars, Jasulaitiene, Vitalija, Niaura, Gediminas, Drabavicius, Audrius, Juel, Mari, Colmenares-Rausseo, Luis, Kruusenberg, Ivar, Kaare, Kätlin, Norkus, Eugenijus

“…Herein, we present a synthesis route for high-efficiency nitrogen-doped carbon materials using kraft pulping residue, black liquor, and wood charcoal as carbon…”
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Highly Active Wood-Derived Nitrogen-Doped Carbon Catalyst for the Oxygen Reduction Reaction by Kaare, Kätlin, Yu, Eric, Volperts, Aleksandrs, Dobele, Galina, Zhurinsh, Aivars, Dyck, Alexander, Niaura, Gediminas, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus, Andrulevičius, Mindaugas, Danilson, Mati, Kruusenberg, Ivar

“…In this recent decade, great interest has risen to develop metal-free and cheap, biomass-derived electrocatalysts for oxygen reduction reaction (ORR). Herein,…”
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Feasibility of broadening the feedstock choice for levoglucosenone production by acid pre-treatment of wood and catalytic pyrolysis of the obtained lignocellulose by Zandersons, Janis, Zhurinsh, Aivars, Dobele, Galina, Jurkjane, Vilhelmine, Rizhikovs, Janis, Spince, Baiba, Pazhe, Aigars

“…► Levoglucosenone – dehydrated sugar used in preparation of chiral synthons. ► Feedstock – birch and pine wood, birch lignocellulose and Kraft cellulose. ►…”
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Assessment of Different Binders for Activated Carbon Granulation for the Use in CO2 Adsorption by Argalis, Pauls, Jerane, Ilze, Zhurinsh, Aivars, Vegere, Kristine

“…An eco-friendly method for the synthesis of granular activated carbon was developed in this study. Two types of activated carbon and three types of activated…”
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Synthesis of nitrogen-doped carbon catalyst from hydrothermally carbonized wood chips for oxygen reduction by Upskuviene, Daina, Balciunaite, Aldona, Drabavicius, Audrius, Jasulaitiene, Vitalija, Niaura, Gediminas, Talaikis, Martynas, Plavniece, Ance, Dobele, Galina, Volperts, Aleksandrs, Zhurinsh, Aivars, Lin, Yu-Chuan, Chen, Yu-Wen, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus

“…An efficient carbon material was prepared using hydrothermal carbonization of birch-wood chips in the water under elevated pressure, subsequent chemical…”
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Copper-nitrogen dual-doped activated carbon derived from alder wood as an electrocatalyst for oxygen reduction by Volperts, Aleksandrs, Upskuviene, Daina, Balciunaite, Aldona, Jasulaitiene, Vitalija, Niaura, Gediminas, Drabavicius, Audrius, Plavniece, Ance, Dobele, Galina, Zhurinsh, Aivars, Lin, Yu-Chuan, Chen, Yu-Wen, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus

“…In the present study, unmodified nitrogen-doped carbon material (N-doped C) and modified with copper nanoparticles (CuNPs) nitrogen-doped carbon material…”
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Evolution of 1,6-anhydrosugars in the pyrolysis of biomass with phosphoric acid and P-containing activated carbon by Zhurinsh, Aivars, Dobele, Galina, Pomilovskis, Ralfs, Volperts, Aleksandrs, Jurkjane, Vilhelmine

“…[Display omitted] •Hydrothermal pretreatment of wood promotes 1,6-anhydrosugars evolution in pyrolysis.•Selectivity and yield of levoglucosenone from H3PO4…”
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Obtaining lignocellulosic biomass-based catalysts and their catalytic activity in cellobiose hydrolysis and acetic acid esterification reactions by Godina, Daniela, Meile, Kristine, Zhurinsh, Aivars

“…Global challenges prompt the world to modify its strategies and shift from a fossil-fuel-based economy to a bio-resource-based one with the production of…”
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Discrimination of levoglucosan and its structural isomer in biomass pyrolysis products by iodometry, liquid chromatography, mass spectrometry by Meile, Kristine, Syrpas, Michail, Basinskiene, Loreta, Zhurinsh, Aivars

“…This study aimed to selectively determine the main products of the pyrolysis of pre-treated lignocellulosic biomass, namely, two structural isomers of…”
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Solid‐Phase Extraction of the Aromatic By‐Products Obtained by Fast Pyrolysis of Pretreated Lignocellulose by Meile, Kristine, Jermolajeva, Anastasija, Volkova, Evita, Zhurinsh, Aivars

“…Pyrolysis is a recognized technology for lignocellulose conversion into bio‐based fuels, materials, and chemicals. In this work, pyrolysis liquids were…”
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Biomass based activated carbons for fuel cells by Volperts, Aleksandrs, Plavniece, Ance, Dobele, Galina, Zhurinsh, Aivars, Kruusenberg, Ivar, Kaare, Kätlin, Locs, Janis, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus

“…This study is devoted to wood and pulping residues based nitrogen doped nanoporous activated carbons for application as catalysts in fuel cells. Carbonaceous…”
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Effect of the pretreatment on the porosity of the hybrid activated carbons prepared from wood-based solid and liquid precursors by Plavniece, Ance, Dobele, Galina, Volperts, Aleksandrs, Djachkovs, Dmitrijs, Jashina, Lilija, Bikovens, Oskars, Zhurinsh, Aivars

“…The purpose of this work is to study the relationship between carbonization temperatures (400 and 500 °C) of biomass-based precursors and porosity of the…”
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Thermochemical Activation of Wood with NaOH, KOH and H[sub.3]PO[sub.4] for the Synthesis of Nitrogen-Doped Nanoporous Carbon for Oxygen Reduction Reaction by Dobele, Galina, Volperts, Aleksandrs, Plavniece, Ance, Zhurinsh, Aivars, Upskuviene, Daina, Balciunaite, Aldona, Niaura, Gediminas, Colmenares-Rausseo, Luis César, Tamasauskaite-Tamasiunaite, Loreta, Norkus, Eugenijus

“…Carbonization of biomass residues followed by activation has great potential to become a safe process for the production of various carbon materials for…”
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