A5051327697- Supercapacitor Materials and Fabrication
- Crystallization and Solubility Studies
- Advancements in Battery Materials
- X-ray Diffraction in Crystallography
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Graphene research and applications
- Crystallography and molecular interactions
- Carbon Nanotubes in Composites
- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Aerogels and thermal insulation
- Membrane Separation Technologies
- Electrocatalysts for Energy Conversion
- Advanced Chemical Physics Studies
- Catalytic Processes in Materials Science
- Bone Tissue Engineering Materials
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Polymer Synthesis and Characterization
- Metal Extraction and Bioleaching
- Click Chemistry and Applications
- Mass Spectrometry Techniques and Applications
- Membrane-based Ion Separation Techniques
- Recycling and Waste Management Techniques
- Analytical Chemistry and Chromatography
Uppsala University
2022-2024
Aalto University
2021-2023
Novosibirsk State University
2018-2022
Institute of Solid State Chemistry and Mechanochemistry
2022
Selective copper recovery from tailings reduces environmental pollution caused by mining activities and provides a valuable source of copper. Furthermore, polymer waste accumulation handling small functional materials like resins remains challenging. In this study, 3D-printed adsorbent for selective was designed functionalizing recycled with chelating resin 3D-printing using laser sintering technique. The characterized, its adsorption performance examined under varying conditions. kinetics...
Using a set of microscopic, spectroscopic, and electrochemical methods, detailed study the interrelation between structural properties as-prepared nitrogen-containing multi-walled carbon nanotubes (N-MWCNTs) their modified derivatives is carried out. It was found that after treatment with hydrochloric acid, structure improved by removing amorphous from outer layers N-MWCNTs. On contrary, ion bombardment leads to formation vacancy-type defects both on surface in bulk shown treated have an...
Carbon nanostructures are promising electrode materials for energy storage devices because of their unique physical and chemical properties. Modification the surface improves electrochemical properties those changes in morphology, diffusion properties, inclusion additional contributions to redox processes. Oxygen-containing functional groups nitrogen doped into carbon matrix significantly contribute behavior reduced graphite oxide (RGO). In this work, RGO was synthesized during hydrothermal...
Abstract The conversion of biomass and natural wastes into carbon‐based materials for various applications such as catalysts energy‐related is a fascinating sustainable approach emerged during recent years. Precursor nature characteristics are complex, hence, their effect on the properties resulting still unclear. In this work, we have investigated different precursors pyrolysis temperature produced carbon potential application negative electrode in Li‐ion batteries. Three biomasses,...
A wide array of carbon materials finds extensive utility across various industrial applications today. Nonetheless, the production processes for these continue to entail elevated temperatures, necessitate use inert atmospheres, and often involve handling aggressive toxic chemicals. The prevalent method large-scale material production, namely pyrolysis waste biomass polymers, typically unfolds within temperature range 500-700 °C under a nitrogen (N
The reduction of graphite oxide makes it possible to obtain a graphene material with developed surface, high conductivity and remarkable electrochemical behavior. study the activity oxygen‐containing functional groups on surface is important for creation energy sources sensors. In this work, reduced selectively decorated by carboxyl groups. initial carboxylated are studied SEM microscopy, FTIR, Raman, X‐ray photoelectron spectroscopy. It shown that large number added change sample...
The Mn-C-O composites were synthesized by the electric-arc discharge method. composite materials obtained spraying of graphite electrode with addition MnO2. morphology formed during metal-carbon electrodes in various buffer gases (N2 and He) effect their subsequent annealing an oxygen-containing atmosphere was studied. It experimentally determined that MnOx (MnO, Mn3O4) nanoparticles are mainly N2 atmosphere, Mn7C3 carbide He atmosphere. This phenomenon is explained different cooling rates...
An alkoxyamine was prepared from a cyclic aldonitrone nitroxide. The resulting containing an functional substituent is relatively stable but can react readily with vinyl monomers to form cycloadduct that has much higher C-ON homolysis rate. This type of in situ activation converts the into efficient controlling agent for nitroxide-mediated polymerization. Here we present study on this reaction bond and application such as situ-activated initiator.
Industrial and mining wastewater, along with copper tailings, are typically highly acidic contain other heavy metals, which may contaminate damage the environment. Copper (Cu) is, however, a valuable metal, making its removal recovery from such wastewater tailings environmentally economically advantageous. Chelating ion exchange resins featuring bis-picolylamine functional groups especially suitable for application requiring selective of Cu(II) media. In this study, first time, kinetics,...
Because the C-ON bond homolysis rate constant k d is an essential parameter of alkoxyamine reactivity, it especially important to tune without a major alteration structure molecule. Recently, several approaches have become known, e.g., protonation functional groups and formation metal complexes. In this paper, coordination reactions [Zn(hfac)2(H2O)2] with series new SG1-based alkoxyamines affording complexes different structures are presented. The values complexed forms were compared those...
The investigation of molecular crystals at high pressure is a sought-after trend in crystallography, pharmaceutics, solid state chemistry, and materials sciences. di-p-tolyl disulfide (CH3−C6H4−S−)2 system bright example high-pressure polymorphism. It contains “conventional” solid–solid transition “hidden” form which may be obtained only from solution elevated pressure. In this work, we apply force field periodic DFT computational techniques to evaluate the thermodynamic stability three...
Advances in supercapacitor performance are boosted both by material design helping to improve specific capacitance and tailoring of device architecture, often addressing flexibility enable rolling-up packaging reach high nominal values. This keeps attention flexible lightweight materials, such as single-walled carbon nanotubes (SWCNTs) conducting polymers, polyaniline (PANI). In this work, we study unique "dead-weight" free supercapacitors based on PANI electrochemically deposited...