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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kumar, Pawan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Investigation of AA6063-based metal–matrix composites reinforced with TiO2 dispersoids through digitally assisted techniques for mechanical, tribological, and microstructural characterizationscitations
- 2023Cooperative Copper Single Atom Catalyst in Two‐dimensional Carbon Nitride for Enhanced CO<sub>2</sub> Electrolysis to Methanecitations
- 2023Nanoengineered Au–carbon nitride interfaces enhance photocatalytic pure water splitting to hydrogencitations
- 2022Estimating spatial distribution of oxygen and hypoxia in tumor microenvironment: a mechanistic approach
- 2022Revealing the Variation of Photodetectivity in MAPbI3 and MAPb(I0.88Br0.12)3 Single Crystal Based Photodetectors Under Electrical Poling-Induced Polarizationcitations
- 2022Imaging Topological Defects in a Noncollinear Antiferromagnetcitations
- 2022Nanocrystalline cellulose derived from spruce woodcitations
- 2022Modeling of Electric Discharge Wire Cut of Aviation Grade Alloy Using Fuzzy Techniquecitations
- 2022Future of Water/Wastewater Treatment and Management by Industry 4.0 Integrated Nanocomposite Manufacturingcitations
- 2021Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteriescitations
- 2021Effect of Bromine Doping on Charge Transfer, Ion Migration and Stability of the Single Crystalline MAPb(BrxI1−x)3 Photodetectorcitations
- 2021Water-splitting photoelectrodes consisting of heterojunctions of carbon nitride with a p-type low bandgap double perovskite oxidecitations
- 2020Direct measurement of the thermoelectric properties of electrochemically deposited Bi2Te3 thin filmscitations
- 2020Interpretation of Resistance, Capacitance, Defect Density, and Activation Energy Levels in Single-Crystalline MAPbI3citations
- 2020Evidence of magneto-electric coupling and electrical study of CFO modified BNT/BT compositescitations
- 2018High-performance field emission device utilizing vertically aligned carbon nanotubes-based pillar architecturescitations
- 2013Rietveld analysis of XRD patterns of different sizes of nanocrystalline cobalt ferrite
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article
Nanocrystalline cellulose derived from spruce wood
Abstract
The cellulose nanocrystals (CNCs) were produced from spruce wood using less hazardous and toxic reagents with understanding of influence of process parameters on CNCs properties. This study employed acetosolv pulping followed by alkaline-peroxide bleaching, eliminating highly reactive chemicals such as Na-chlorites and Na-sulfite for cellulose pulp extraction from spruce wood. Cellulose pulp yield of 41.5 ± 0.7 wt% of dry wood was obtained from pulping followed by bleaching treatment. Cellulose pulp was hydrolyzed with 59.0–65.0 wt% sulfuric acid followed by ultrasonic treatment to produce CNCs. CNCs yield of 8.0 ± 3.2 wt% of dry wood was obtained at 65 wt% acid concentration and yield of 25.1 ± 0.7 wt% at 62 wt% acid concentration. The optimization of acid hydrolysis and ultrasonic treatment resulted in CNCs with high aspect ratios (length/width) up to 48.1. It was demonstrated that higher acid concentration requires lower intensity of ultrasonic treatment for CNCs dispersion, and that higher intensity could enhance aspect ratio without impacting the crystallinity index. However, ultrasonic treatment for longer than 5 min led to destruction of the whisker morphology of CNCs. The extracted CNCs possess high crystallinity index of 80.8 ± 1.7 %, low residual hemicellulose (<2.0 %) and lignin (<0.7 %), and high-char content of 26.7 wt% from thermal degradation. © 2022 Published by Elsevier B.V.