Krisztina László

ORCID: 0000-0003-4499-3983
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About
Contact & Profiles
Research Areas
  • Graphene research and applications
  • Adsorption and biosorption for pollutant removal
  • Hydrogels: synthesis, properties, applications
  • Supercapacitor Materials and Fabrication
  • Catalytic Processes in Materials Science
  • Mesoporous Materials and Catalysis
  • Canadian Identity and History
  • Aerogels and thermal insulation
  • Graphene and Nanomaterials Applications
  • Carbon Nanotubes in Composites
  • Vietnamese History and Culture Studies
  • Microfluidic and Capillary Electrophoresis Applications
  • Material Dynamics and Properties
  • Advanced Photocatalysis Techniques
  • Metal-Organic Frameworks: Synthesis and Applications
  • American Environmental and Regional History
  • Phase Equilibria and Thermodynamics
  • Archaeology and Natural History
  • Covalent Organic Framework Applications
  • Electrocatalysts for Energy Conversion
  • Catalysis and Oxidation Reactions
  • Polymer Surface Interaction Studies
  • Analytical chemistry methods development
  • Advancements in Battery Materials
  • Polymer Nanocomposites and Properties

Budapest University of Technology and Economics
2015-2024

Institute of Materials and Environmental Chemistry
2013-2021

Hungarian Academy of Sciences
2003-2013

Egis (France)
2010

University of Szeged
2010

Université Grenoble Alpes
2003-2008

Centre National de la Recherche Scientifique
2003-2008

Université Joseph Fourier
2003-2008

Memorial
2004

Maria Curie-Skłodowska University
2003

Carbon fibers, obtained by carbonizing poly(p-phenylene benzobisoxazole) (PBO) fibers at 900 °C, graphitize extensively upon heat treatment higher temperatures (2700 °C). In this work, XRD, Raman spectroscopy, and HRTEM are used to monitor the structural nanostructural transformations of carbon material under heat-treatment several in interval 900–2800 °C. These different techniques provide complementary information, especially regarding spatial resolution they achieve. They highlight a...

10.1021/jp2084499 article EN The Journal of Physical Chemistry C 2011-11-22

The extensive oxygen-group functionality of single-layer graphene oxide proffers useful anchor sites for chemical functionalization in the controlled formation architecture and composites. However, physicochemical environment its single-atom thickness facilitate ability to undergo conformational changes due responses environment, whether pH, salinity, or temperature. Here, we report experimental molecular simulations confirming sheets from wet dry state. MD, PM6, ab initio SLG wetted SLGO...

10.1021/nn3002278 article EN publisher-specific-oa ACS Nano 2012-04-11

Single-layer graphene oxides (SLGOs) undergo morphological changes depending on the pH of system and may account for restricted chemical reactivity. Herein, SLGO also capture nanoparticles through layering enveloping when is changed, demonstrating potential usefulness in drug delivery or waste material capture.

10.1039/c1cc13725e article EN Chemical Communications 2011-01-01

Novel amphiphilic conetworks (APCN) consisting of thermoresponsive poly(N-isoproplyacrylamide) (PNiPAAm) cross-linked by hydrophobic methacrylate-telechelic polyisobutylene (MA-PIB-MA) were successfully synthesized in a broad composition range. The resulting PNiPAAm-l-PIB ("l" stands for "linked by") obtained radical copolymerization NiPAAm with MA-PIB-MA tetrahydrofuran, cosolvent all the components. Low amounts extractables substantiated efficient network formation. dependent two glass...

10.1021/ma400535r article EN Macromolecules 2013-06-26

Abstract Graphene oxide (GO) is not only an intermediate in top-down graphene preparation, but it also acknowledged for its convenient application when the hydrophobicity of a drawback. Its preparation through wet exfoliation graphite inevitably leads to product lacking several outstanding features graphene. The destroyed structure can be at least partially reconstructed by thermal and/or chemical reduction. Thermally reduced (TRGO) was obtained mild heat treatment (300 °C) argon, while...

10.1007/s10973-020-09719-3 article EN cc-by Journal of Thermal Analysis and Calorimetry 2020-05-13

Effects of different reaction parameters in the hydrothermal synthesis molybdenum oxides (MoO3) were investigated and monoclinic (β-) MoO3 was prepared hydrothermally for first time. Various temperatures (90/210 °C, as a novelty 240 °C) durations (3/6 h) used. At cetyltrimethylammonium bromide (CTAB) CrCl3 additives also tested. Both played significant role formation products. 90 h-MoO3 obtained, while at °C orthorhombic (α-) formed with hexagonal rod-like nanofibrous morphology,...

10.3390/nano10050891 article EN cc-by Nanomaterials 2020-05-07

Heterogeneity effects that accompany adsorption of phenolic compounds from water by polymer-based activated carbons are investigated at different values solution pH. Activated prepared poly(ethylene terephthalate) and polyacrylonitrile (APET APAN, respectively) were used to adsorb phenol 2,3,4-trichlorophenol in acidic (pH = 3), unbuffered, basic 11) aqueous solutions. A Langmuir−Freundlich adsorption-isotherm equation was estimate the parameters characterize phenols dilute solutions on...

10.1021/la026761s article EN Langmuir 2003-05-24

10.1016/j.colsurfa.2004.11.051 article EN Colloids and Surfaces A Physicochemical and Engineering Aspects 2005-07-18

Abstract Resorcinol‐formaldehyde‐based carbon aerogels were modified by treatment with H 2 S at 650 and 800 °C used as catalysts for the oxygen reduction reaction (ORR) in an alkaline medium. On material treated high temperature, electron transfer number was close to 4 e − onset potential ORR shifted a more positive value. An excellent tolerance methanol crossover also detected. The resulted sulfur doping form of thermally stable thiophenic compounds, which increased surface hydrophobicity....

10.1002/cctc.201500192 article EN ChemCatChem 2015-06-19

Synthesis and characterization of a pH- redox-sensitive hydrogel poly(aspartic acid) are reported. Reversible gelation dissolution achieved both in dimethylformamide aqueous medium via thiol-disulphide interconversion the side chain polymers. Structural changes confirmed by Raman microscopy rheological measurements. Injectable solutions thiolated can be converted into mechanically stable gels oxidation, which useful for drug encapsulation targeted delivery. Reduction-facilitated release an...

10.1002/mabi.201200420 article EN Macromolecular Bioscience 2013-03-19

An immobilization engineering approach using bioinformatics and experimental design tools was applied to improve the sol–gel enzyme entrapment methodology.

10.1039/c7gc00896a article EN cc-by Green Chemistry 2017-01-01

Study on h-WO<sub>3</sub>/TiO<sub>2</sub> nanowires as ALD nucleation of TiO<sub>2</sub> was found to be influenced by the WO<sub>3</sub> polymorphs.

10.1039/c6ra18899k article EN cc-by RSC Advances 2016-01-01
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