0000000000793990

AUTHOR

Pēteris Lesničenoks

showing 4 related works from this author

Complex multilayer carbon structures for green energetics

2017

The authors greatly acknowledge the IMIS2 project of the National Reform Programme of Latvia for financial support. The publication costs of this article were covered by the Estonian Academy of Sciences and the University of Tartu.

resistivityMaterials scienceChemical engineeringchemistrymultilayer carbon structuresEnergeticsGeneral Engineeringchemistry.chemical_elementelectrochemical exfoliation:NATURAL SCIENCES::Physics [Research Subject Categories]Raman spectra7. Clean energyCarbonProceedings of the Estonian Academy of Sciences
researchProduct

Studies of Reversible Hydrogen Binding in Nano- Sized Materials

2015

Experimental review of materials suitable for reversible hydrogen binding in nanoporous and nanosized structures of materials, based on natural zeolite (clinoptilolite) and graphene (exfoliated electrochemically from raw graphite), were analyzed. Characterization of materials with SEM, XRD, EDS and Raman spectroscopy methods and aspects of synthesis of a nanostructured zeolite and a few-layer graphite material was done in this work. It was established from gas analyzer results that hydrogen mass fraction in natural zeolite ranged from 1.1 % to 1.4 %, but in the few-layer graphite material − from 0.39 % to 0.46 %.

ClinoptiloliteMaterials scienceHydrogenNanoporousGraphenechemistry.chemical_elementHydrogen storage graphene zeolite graphite.Gas analyzerlaw.inventionsymbols.namesakechemistryChemical engineeringlawsymbolsGraphiteRaman spectroscopyZeoliteMaterial Science and Applied Chemistry
researchProduct

PVA Hydrogel Electrolyte and Porous Polyisoprene Carbon Nanostructure Composite Based Pressure Sensitive Supercapacitor

2019

Special gratitude is in order to Raimonds Orlovs for temperature dependent resistance measurements. Financial support of project 1.1.1.1/16/A/013, “Hybrid energy harvesting systems” is greatly appreciated.

SupercapacitorCarbon nanostructuresMaterials scienceComposite number02 engineering and technologyElectrolyte010402 general chemistry021001 nanoscience & nanotechnology7. Clean energy01 natural sciences0104 chemical sciencesChemical engineeringPressure sensitive:NATURAL SCIENCES:Physics [Research Subject Categories]0210 nano-technologyPorosityIOP Conference Series: Materials Science and Engineering
researchProduct

Electrophoretically deposited α-Fe2O3 and TiO2 composite anchored on rGO with excellent cycle performance as anode for lithium ion batteries

2018

Abstract Two nanostructured oxides, α-Fe2O3 and TiO2 with a particle diameters 50 nm and 21 nm, were mixed with graphene oxide (GO). Composite thin films on a stainless steel substrate were obtained by electrophoretic deposition (EPD) procedure from water suspensions: α-Fe2O3/GO, TiO2/GO and α-Fe2O3/TiO2/GO. Subsequently reduction of as-prepared thin films was performed. Thicknesses of acquired films were evaluated in the range of 2–6 μm. Structure and morphology were investigated as well as electrochemical properties of all samples were studied. The results revealed that α-Fe2O3/TiO2/rGO (in this article denoted as FTGO) exhibited the specific discharge capacity of 790 mAh·g−1 after 150 cy…

Materials scienceGrapheneComposite numberOxidechemistry.chemical_element02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences0104 chemical sciencesAnodelaw.inventionchemistry.chemical_compoundElectrophoretic depositionChemical engineeringchemistrylawGeneral Materials ScienceLithiumThin film0210 nano-technologyFaraday efficiencySolid State Ionics
researchProduct