Search results for: electrical properties

• Microstructure and electrical properties of manganese borosilicate glasses

  Publication

  • P. Kupracz
  • J. Karczewski
  • M. Prześniak-Welenc
  • N. A. Wójcik
  • M. J. Winiarski
  • T. Klimczuk
  • R. J. Barczyński

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Year 2015

  The structure, optical and electrical properties of manganese borosilicate glasses of the composition xMnO–(80 − x)SiO 2 –20B 2 O 3 (x = 40, 50, and 60 mol%) were investigated. The dependence of the glass structure on its composition was discussed and related to electrical properties. A separation of two amorphous phases was observed. It was suggested that one phase is MnO-rich and the other is SiO 2 -rich. It was found that...

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• Electrical properties of polymer coatings modified with nanoadditives

  Publication

  • B. Górnicka
  • K. Sieradzka
  • J. Domaradzki
  • M. S. Łapiński

  - Year 2009

  W pracy przedstawiono właściwości elektryczne (antystatyczne, rezystancję powierzchniową) polimerowych powłok. Pokazano wpływ różnych domieszek na czasy rozładowania się warstwy oraz na jej rezystancję powierzchniową.

• Optical and electrical properties of Pr0.8Sr0.2MnO3 thin films.

  Publication

  • T. Suzuki
  • P. Jasiński
  • V. Petrovsky
  • X. Zhou
  • H. U. Anderson

  - JAPANESE JOURNAL OF APPLIED PHYSICS - Year 2003

  Przedstawiono preparatykę, strukturę oraz optyczne i elektryczne właściwości cienkowarstwowego Pr0.8Sr0.2MnO3. Gęste filmy o grubości 50-70nm zostały naniesione na monokrystaliczne podłoże szafirowe metodą odwirowania prekursora polimerowego. Wyniki optycznych pomiarów zostały skorelowane z temperaturą syntezy filmów. Pokazano, że optyczne spektra zmieniają kształt wraz ze zmianą struktury filmu z amorficznej do krystalicznej....

• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3 perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The...

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• Phase Separation and Electrical Properties of Manganese Borosilicate Glasses

  Publication

  • P. Kupracz
  • N. A. Wójcik
  • M. Gazda
  • J. Karczewski
  • R. J. Barczyński

  - Procedia Engineering - Year 2014

  The structure and electrical properties of manganese borosilicate glasses of a composition of xMnO-(0.8-x)SiO2-(0.2)B2O3 (x=0.4, 0.5 and 0.6 in mol) were investigated by impedance spectroscopy, SEM, XRD and confocal microscopy methods. The influence of composition on the glass structure and electrical properties was discussed. A separation of two amorphous phases was observed and it was concluded that one phase is SiO2-rich and...

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• Structural and electrical properties of titanium-doped yttrium niobate

  Publication

  • P. Winiarz
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • P. Jasiński
  • A. Witkowska
  • M. Gazda

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2018

  In this work, the influence of the substitution of niobium by titanium in Y3Nb1-xTixO7-δ on the structural and electrical properties is reported. Several experimental techniques, i.e. X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-Ray Photoelectron Spectroscopy (XPS) and Electrochemical Impedance Spectroscopy (EIS), were applied to investigate the system Y3Nb1-xTixO7-δ. Titanium in Y3Nb1-xTixO7-δ is an acceptor-type...

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• High-Temperature Structural and Electrical Properties of BaLnCo2O6 Positrodes

  Publication

  • I. Szpunar
  • R. Strandbakke
  • M. H. Sorby
  • S. L. Wachowski
  • M. Balaguer
  • M. Tarach
  • J. M. Serra
  • A. Witkowska
  • E. Dzik
  • T. Norby... and 2 others

  - Materials - Year 2020

  The application of double perovskite cobaltites BaLnCo2O6−δ (Ln = lanthanide element) in electrochemical devices for energy conversion requires control of their properties at operating conditions. This work presents a study of a series of BaLnCo2O6−δ (Ln = La, Pr, Nd) with a focus on the evolution of structural and electrical properties with temperature. Symmetry, oxygen non-stoichiometry, and cobalt valence state have been examined...

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• Electrical properties of nanocrystalline Sm-doped ceria ceramics

  Publication

  • P. Jasiński

  - SOLID STATE IONICS - Year 2006

  Właściwości ceramiki z cerii zależa zwykle silnie od struktury ziaren. W pracy przedstawiono właściwości elektryczne ceramiki z cerii domieszkowanej samarem wykonanje w technologii 'net shape' posiadającej strukturę nanokrystaliczną.

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• Structural and Electrical Properties of STF Materials for SOFC Applications

  Publication

  • M. Tołczyk
  • S. Molin
  • M. Gazda
  • P. Jasiński

  - Year 2010

  W tym artykule przedstawiono badania tytanian strontu domieszkowanego żelazem. Synteza dwuetapowa była niezbędna do uzyskania czystego fazowo proszku o pożądanych właściwościach. Przewodnictwo elektryczne wykazało właściwości typu zero-TCR dla składu STF35. Poziom przewodnictwa elektrycznego różnił się o więcej niż jeden rząd wartości dla wytworzonych materiałów. Reaktywność chemiczną między YSZ i STF badano w zakresie temperatur...

• Electrical properties of polymer humidity sensor based on polyethyleneimine.

  Publication

  • T. Zajt
  • G. Jasiński
  • B. Chachulski

  - Proceedings of SPIE - Year 2003

  W pracy przedstawiono wyniki badań amperometrycznych właściwości czujników wilgotności na bazie PEI. Pokazano, że przepływ prądu jest wynikiem reakcji elektrodowej na anodzie.

• The optical and electrical properties of nanocrystalline La0.4Sr0.6TiO3 thin films.

  Publication

  • T. Suzuki
  • P. Jasiński
  • V. Petrovsky
  • H. U. Anderson

  - Year 2004

  W pracy badano wpływ mikrostruktury cienkich filmów La0.8Sr0.6TiO3 na właściwości optyczne. Gęste filmy o grubości około 200nm były przygotowane na szafirze z prekursorów polimerowych metodą wirową. Filmy były wypalone w temperaturze 500-800 stC. Badania rentgenowskie wskazały utworzenie kubicznej struktury perowskitowej podobnej do niedomieszkowanego SrTiO3. Wielkość ziaren zależała od temperatury wypalenia osiągając 30nm w 800stC....

• Non-linear electrical properties of myocardium in computer simulation

  Publication

  • K. Grzęda
  • P. Czarnul
  • A. Z. Nowakowski

  - Year 2005

  Pomiar impedancji elektrycznej jest obiecującą metodą monitorowania stanu mięśnia sercowego, szczególnie podczas niedokrwienia. Typową metodą pomiaru jest rejestrowanie odpowiedzi-napięcia na pobudzenie prądowe. Odpowiedź jest często aproksymowana jako liniowa względem pobudzenia. Artykuł jest poświęcony oszacowaniu rzędu wielkości nieliniowych komponentów w odpowiedzi.

• Electrical properties of YSZ films prepared by netshape technology

  Publication

  • P. Jasiński
  • V. Petrovsky
  • T. Suzuki
  • T. Petrovsky
  • H. U. Anderson

  - Year 2005

  W pracy przedstawiono wyniki badań domieszkowanego tlenku cyrkonu przygotowanego metodą net shape. Materiał został przygotowany w postaci warstwy o grubości 1-10um na szafirze oraz folii platynowej. Zbadano włąsiciwości elektryczne przygotowanych warst.

• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3-δ perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontiumtitanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work.It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent.Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry.The defect...

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• Electrical properties of organic and perovskite systems used in solar cells

  Publication

  • D. Głowienka

  - Year 2019

  Nowadays, a great progress in the areas of molecular and hybrid photovoltaics is observed. The devices based on organic and perovskite materials are getting attention mostly due to their low cost production process. However, their efficiency and stability are still lower than for inorganic materials which make them less popular. Therefore, a detailed understanding of the device physics is fundamental for organic and perovskite...

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• Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron

  Publication

  • K. Cysewska
  • S. Virtanen
  • P. Jasiński

  - JOURNAL OF THE ELECTROCHEMICAL SOCIETY - Year 2015

  In this work, electrochemical activity and electrical properties of polypyrrole (PPy) coated iron electrodes have been investigated. PPy film was electrochemically polymerized from sodium salicylate aqueous solution under conditions, which provided an increase of iron corrosion resistance. It was noticed that the pH of the solution and the applied electrode potential range during the study of the polymer properties had an influence...

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• Influence of electropolymerization conditions on the morphological and electrical properties of PEDOT film

  Publication

  • K. Cysewska
  • J. Karczewski
  • P. Jasiński

  - ELECTROCHIMICA ACTA - Year 2015

  In this work the effects of electropolymerization conditions on the morphological properties and conductivity of poly(3,4-ethylenedioxythiophene) (PEDOT) film have been studied. PEDOT films were electrochemically synthesized in a one step process from acetonitrile solution containing 3,4-ethylenedioxythiophene (EDOT) and lithium perchlorate. Based on atomic force microscopy, scanning electron microscopy, cyclic voltammetry and...

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• Electrical properties of poros nanocrystalline undoped ceria oxygen sensor

  Publication

  • S. Molin
  • M. Gazda
  • P. Jasiński
  • A. Z. Nowakowski

  - Elektronika : konstrukcje, technologie, zastosowania - Year 2008

  W pracy zaprezentowano wykonanie czujnika z niedomieszkowanego tlenku ceru o nanometrowych ziarnach krystalicznych. Zastosowana metoda nanoszenia warstw zalicza się do metod niskotemperaturowych. Wytworzone warstwy przebadano za pomocą dyfrakcji rentgenowskiej, mikroskopii elektronowej oraz spektroskopii impedancyjnej. Wykonane czujniki charakteryzują się szybkim czasem odpowiedzi i stabilnym zachowaniem przy zmianach ciśnienia...

• Application of percolation theory for description of electrical properties of conducting coatings

  Publication

  • J. Orlikowski

  - Physico-Chemical Mechanics of Materials - Year 2002

  Przedstawiono pomiary elektryczne i elektrochemiczne powłok organicznych przewodzących prąd elektryczny i mogących pełnić rolę anody w systemie ochrony katodowej żelbetonu. Za pomocą pomiarów impedancyjnych dokonano oceny rezystancji powłoki w funkcji zawartości grafitu. Na tej podstawie oszacowano próg perkolacji powłoki epoksydowej domieszkowanej elektrografitem. Ocenę obciążalności prądowej powłok przewodzących dokonano wykonując...

• Electrical properties of ceria films prepared by net shape technology

  Publication

  • P. Jasiński
  • V. Petrovsky

  - Year 2005

  W pracy przedtswiono procedurę przygotowania gęstych warstw elektrolitu z wykorzystaniem technologii Net Shpe. Technologia ta na znaczne obniżenie temperatury przygotania tego typu warst. Okresloślono parametry elektryczne warst domieszkowanego ceru przygotowanych w tej technologii.

• Structural and electrical properties of Cr-doped SrTiO 3 porous materials

  Publication

  • A. Łącz
  • Ł. Łańcucki
  • R. Lach
  • B. Kamecki
  • E. Drożdż

  - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Year 2018

  Series of single-phase materials with assumed formula SrTi1−xCrxO3 (where x = 0, 1, 4, 6 mol.%) were obtained by sol-gel method. The structure and microstructure of materials were characterised by X-ray diffraction and scanning electron microscopy methods. Moreover, the study of electrical properties and evaluation of chemical stability in CO2/H2O atmosphere was performed by electrochemical impedance spectroscopy and thermogravimery...

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• Microstructural and electrical properties of Y0:07Sr0:93−xTiO3− perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The...

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• Electrical properties of Y0.08Sr0.92Ti0.92Nb0.08O3-δ after reduction in different reducing conditions

  Publication

  • J. Karczewski
  • B. Bochentyn
  • S. Molin
  • A. Winiarski
  • M. Gazda
  • P. Jasiński
  • L. Murawski
  • B. Kusz

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2009

  Electrical properties of perovskite Y0.08Sr0.92Ti0.92Nb0.08O3−ı after reduction in different conditions were studied. Relatively high electrical conductivity in samples reduced in ammonia was observed. The conductivity of Y0.08Sr0.92Ti0.92Nb0.08O3−ı reduced in ammonia at 1500 ◦C was of about 600 S/cm at 200 ◦C. Conductivity after reduction in ammonia at 1500 ◦C was stable both in hydrogen and oxygen atmosphere up to 600 ◦C. Reduction...

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• Synthesis, microstructure and electrical properties of nanocrystalline calcium doped lanthanum orthoniobate

  Publication

  • T. Miruszewski
  • P. Winiarz
  • K. Dzierzgowski
  • K. Wiciak-Pawłowska
  • K. Zagórski
  • A. Morawski
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • J. Strychalska-Nowak
  • M. Sawczak
  • M. Gazda

  - JOURNAL OF SOLID STATE CHEMISTRY - Year 2019

  The single phase lanthanum orthoniobate with tetragonal structure has been synthesized by the means of mechanosynthesis method. The studies have shown the crystal structure of La0.98Ca0.02NbO4 depends on the synthesis stage. The samples were predominantly in the tetragonal phase with a trace amount of the monoclinic phase. The SEM studies of morphology and microstructure have shown nanocrystallinity of the materials. The Raman...

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• Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics

  Publication

  • S. Wang
  • Y. Hsu
  • Y. Liao
  • T. Yang
  • P. Jasiński

  - JOURNAL OF ELECTRONIC MATERIALS - Year 2019

  Doping of Na and K at La sites and of B at Si site in La10Si6O27 with oxyapatite structure and fabrication of their ceramics were made by the solid-state reaction method. It was found that partial substitution of Na+ and K+ on La sites decreased the sinterability of the La10Si6O27 based ceramics, whereas partial substitution of B3+ on the Si site improved the sinterability. Na+ and K+ substitutions in La10−xNaxSi6O27−x and La10−xKxSi6O27−x...

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• Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics

  Publication

  • S. Wang
  • Y. Hsu
  • Y. Liao
  • T. Yang
  • P. Jasiński

  - ECS Transactions - Year 2019

  Doping of Na and K at La sites and of B at Si site in La10Si6O27 with oxyapatite structure and fabrication of their ceramics were made by solid-state reaction method. It was found that partial substitution of Na+ and K+ on La sites decreased the sinterability of the La10Si6O27 based ceramics, whereas partial substitution of B3+ on Si site imporved the sinterability. Na+ and K+ substitutions in La10-xNaxSi6O27-x and La10-xKxSi6O27-x...

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• Electrical properties and structure of lead-borate glass containing iron ions.

  Publication

  • N. A. Wójcik
  • R. J. Barczyński
  • J. Karczewski
  • M. Gazda

  - SOLID STATE IONICS - Year 2014

  The ac and dc conductivity in iron–lead-borate glass samples was investigated in the frequency range from 1 mHz to 1 MHz and in the temperature range from 153 K to 423 K. The structure was investigated by the means of atomic force microscopy (AFM) and the crystalline phases (if present) were identified by the means of X-ray diffractometry. Two types of ac electrical behaviour were observed. The first group of glass samples which...

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• Electrical properties of Na2O-CaO-P2O5 glasses doped with SiO2 and Si3N4

  Publication

  • N. A. Wójcik
  • B. Jonson
  • R. J. Barczyński
  • P. Kupracz
  • D. Möncke
  • S. Ali

  - SOLID STATE IONICS - Year 2018

  Sodium-calcium-phosphate glasses doped with SiO2 or Si3N4 having similar sodium ion concentrations were prepared by melt quenching. The conductivity was measured by impedance spectroscopy under nitrogen atmosphere in a wide frequency range (10 mHz–1 MHz) and wide temperature range (153–473 K). At 36.6 °C, DC conductivities of all glasses vary between 1.1 ∗ 10−12 and 8.9 ∗ 10−12 S cm−1 and have similar activation energies (between...

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• Electrical properties and structure of lead-borate glass containing iron ions

  Publication

  • N. Szreder
  • R. Barczyński
  • J. Karczewski
  • M. Gazda
  • N. Wójcik

  - SOLID STATE IONICS - Year 2014

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• Optical and Electrical Properties of Iodine Doped n-Type ZnSe Crystals

  Publication

  • M. Balcerzyk
  • F. Firszt
  • H. Męczyńska
  • M. Balcerzyk

  - ACTA PHYSICA POLONICA A - Year 1991

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• Synthesis, microstructure and electrical properties of nanocrystalline calcium doped lanthanum orthoniobate

  Publication

  • K. Wiciak-Pawłowska
  • T. Miruszewski
  • P. Winiarz
  • K. Zagórski
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • J. Strychalska-Nowak
  • M. Gazda
  • K. Dzierzgowski

  - JOURNAL OF SOLID STATE CHEMISTRY - Year 2019

• Effect of short time reduction on electrical properties of bismuth-silicate glasses

  Publication

  • K. Trzebiatowski
  • J. Gackowska
  • W. Lizak
  • L. Murawski

  - OPTICA APPLICATA - Year 2006

  Podczas krótkiego wygrzewania szkieł bizmutowo-krzemianowych w wodorze (około 5 min w 375C) przewodnictwo powierzchniowe wzrasta o kilka rzędów wartości. Nośnikiem ładunku w tych próbkach jest hopping elektronowy między zlokalizowanymi stanami w badanej warstwie krzemu, zawierającej małe klastry Bi. Wpływ granul bizmutu na przewodnictwo jest widoczny w drugim stadium redukcji, które zachodzi po redukcji dłuższej niż 4h.

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• Electrical properties of Y0.08Sr0.92Ti0.92Nb0.08O3_−delta after reduction in different reducing conditions

  Publication

  • J. Karczewski
  • B. Riegel
  • S. Molin
  • A. Winiarski
  • M. Gazda
  • P. Jasiński
  • L. Murawski
  • B. Kusz

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2009

  Praca przedstawia badania właściwości elektrycznych perowskitów Y0.08Sr0.92Ti0.92Nb0.08O3−ı redukowanych w różnych warunkach termicznych. Obserwowano wysoką przewodność elektryczną próbek redukowanych w atmosferze amoniaku. Przewodność Y0.08Sr0.92Ti0.92Nb0.08O3−ı redukowanego w amoniaku w 1500 ◦C była rzędu 600 S/cm w 200 ◦C. Przewodność elektryczna próbek redukowanych w amoniaku w 1500 ◦C była stabilna zarówno w atmosferze wodoru...

• Electrical properties of hybrid planar diode based on palladium phthalocyanine and titanium dioxide

  Publication

  • G. Jarosz
  • B. Kościelska
  • R. Signerski

  - MATERIALS SCIENCE-POLAND - Year 2013

  This work details experimental studies of a planar diode made of indium tin oxide/titanium dioxide/palladium phthalocyanine/gold. The rectification ratio of current was 105 at 1.5 V. The analysis of the electrical properties of the system was based on small signal complex capacitance spectra measured in the frequency range of 25 Hz-1 MHz at different values of bias. No depletion region at the TiO2/PdPc interface was observed. Forward...

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• Influence of pore formers on electrical properties of CaTi0.9Fe0.1O3-δ perovskite-type ceramics

  Publication

  • T. Lendze
  • A. Mielewczyk-Gryn
  • K. Gdula-Kasica
  • B. Kusz
  • M. Gazda

  - Advances in Materials Science - Year 2011

  Porous CaTi0.9Fe0.1O3-δ (CTF) perovskites were synthesized by the standard solid state method at different sintering temperatures with carbon black (CB), corn starch (CS) and potato starch (PS) as pore-forming agents. The ceramic samples of porosity between 9% and 42% with 5 - 40 μm pore sizes, were obtained by a 6 h sintering at either 1130º C or 1200º C of precursor powder prepared at 1470º C. X-ray diffraction analysis proved...

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• Nonlinear electrical properties of glass-ceramics nanocomposites containing ferroelectric nanocrystallites of Bi2VO5.5

  Publication

  • N. A. Wójcik
  • P. Kupracz
  • R. J. Barczyński

  - SOLID STATE IONICS - Year 2018

  Nonlinear A.C. impedance measurements were conducted in the 50BiV-50SrBAlO nanocomposite as a function of frequency, temperature and A.C. voltage. This material is ferroelectric below temperature of 730 K, and above 730 K is a good ion-conductor. For this nanocomposite a low A.C. voltage of 1 V rms is enough to observe high nonlinearities. The origin of these nonlinear effects depends on the temperature and frequency. In the high...

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• Structure and electrical properties of nitrided NbN-TiN sol-gel derived films

  Publication

  • B. Kościelska
  • A. Winiarski
  • B. Kusz

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Year 2009

  W pracy przedstawiono rezultaty badań struktury oraz właściwości elektrycznych warstw NbN-TiN (o różnym stosunku molowym NbN/TiN)otrzymanych w wyniku termicznego azotowania warstw tlenkowych otrzymanych metodą zol-żel. Badania struktury przeprowadzono metodami AFM, XRD oraz XPS. Wynika z nich, iż głównymi fazami w wartstwach są NbN i TiN o rozmiarach ziaren około 100 nm. Jednakże zaobserwowano również istnienie niewielkiej ilości...

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• Optical and electrical properties of ultrathin transparent nanocrystalline boron-doped diamond electrodes

  Publication

  • M. Sobaszek
  • Ł. Skowroński
  • R. Bogdanowicz
  • K. Siuzdak
  • A. Cirocka
  • P. Zięba
  • M. Gnyba
  • M. Naparty
  • Ł. Gołuński
  • P. Płotka

  - OPTICAL MATERIALS - Year 2015

  The optical properties of ultrathin (less than 100 nm) boron-doped nanocrystalline diamond (B-NCD) film were investigated in a wavelength range of 200 ÷ 20000 nm. The B-NCD refractive index showed values close to that of monocrystalline diamond (n = 2.45) in a broad wavelength range (450 ÷ 4000 nm). A transmittance up to 70% and the average film thickness of 70 nm were achieved. A special cone-shaped shim was used in the deposition...

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• Synthesis, crystal structure and electrical properties of A-site cation ordered BaErMn2O5 and BaErMn2O6

  Publication

  • K. Świerczek
  • A. Klimkowicz
  • K. Zheng
  • B. Dabrowski

  - Journal of Solid State Chemistry - Year 2013

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• Cell Membrane Transport Mechanisms: Ion Channels and Electrical Properties of Cell Membranes

  Publication

  • J. Kulbacka
  • A. Choromańska
  • J. Rossowska
  • J. Weżgowiec
  • J. Saczko
  • M. Rols

  - Year 2017

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• Influence of conductive carbon and MnCo2O4 on morphological and electrical properties of hydrogels for electrochemical energy conversion

  Publication

  • S. Pawłowska
  • K. Cysewska
  • Y. Ziai
  • J. Karczewski
  • P. Jasiński
  • S. Molin

  - Beilstein Journal of Nanotechnology - Year 2024

  In this work, a strategy for one-stage synthesis of polymer composites based on PNIPAAm hydrogel was presented. Both conductive particles in the form of conductive carbon black (cCB) and MnCo2O4 (MCO) spinel particles were suspended in the three-dimensional structure of the hydrogel. The MCO particles in the resulting hydrogel composite acted as an electrocatalyst in the oxygen evolution reaction. Morphological studies confirmed...

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• Microstructure and Electrical Properties of Fe,Cu Substituted (Co,Mn)3O4 Thin Films

  Publication

  • D. Grudzień
  • S. Molin
  • P. V. Hendriksen
  • P. Jasiński

  - Crystals - Year 2017

  In this work, thin films (~1000 nm) of a pure MnCo2O4 spinel together with its partially substituted derivatives (MnCo1.6Cu0.2Fe0.2O4, MnCo1.6Cu0.4O4, MnCo1.6Fe0.4O4) were prepared by spray pyrolysis and were evaluated for electrical conductivity. Doping by Cu increases the electrical conductivity, whereas doping by Fe decreases the conductivity. For Cu containing samples, rapid grain growth occurs and these samples develop cracks...

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• Performance of zinc-rich coatings evaluated using AFM-based electrical properties imaging

  Publication

  • M. Szociński
  • K. Darowicki

  - PROGRESS IN ORGANIC COATINGS - Year 2016

  The paper presents the results of investigation of polyvinyl zinc-rich coating exposed to 97% relativehumidity atmosphere for 40 days. Condition of the coating and evolution of its protective properties weredetermined with the novel AFM-based approach capable of providing surface profiles, local dc currentmaps as well as local impedance spectra. The proposed technique allowed insight into the local changesof coating topography...

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• Influence of electropolymerization temperature on corrosion, morphological and electrical properties of PPy doped with salicylate on iron

  Publication

  • K. Cysewska
  • M. Gazda
  • P. Jasiński

  - SURFACE & COATINGS TECHNOLOGY - Year 2017

  In this work, the influence of the electropolymerization temperature on corrosion, morphological and electrical properties of polypyrrole (PPy) film is studied. Polypyrrole is electrochemically synthesized on iron in the presence of sodium salicylate. The X-ray diffraction and scanning electron microscopy are performed in order to study the structure and morphology of electrodeposited PPy. The electroactive surface area, corrosion...

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• Effects of Ca2+, Mg2+, Na+, and K+ substitutions on the microstructure and electrical properties of GdCoO3 ceramics

  Publication

  • S. Wang
  • Y. Hsu
  • Y. Liao
  • T. Lin
  • P. Jasiński

  - JOURNAL OF ELECTROCERAMICS - Year 2020

  GdCoO3-δ, Gd0.975Na0.025CoO3-δ, Gd0.98K0.02CoO3-δ, Gd0.98Ca0.02CoO3-δ, and GdCo0.99Mg0.01O3-δ ceramics were prepared via a solid-state reaction route. Among the dopants studied, substitution with Ca2+ slightly enhanced the densfication of GdCoO3 ceramics. All the lattice parameters of the doped ceramics were larger than those of pure GdCoO3-δ ceramic (a = 5.223 Å, b = 5.389 Å and c = 7.451 Å), and their cell volumes increased by...

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• Structural and electrical properties of Sr(Ti,Fe)O3-δ materials for SOFC cathodes

  Publication

  • S. Molin
  • W. LEWANDOWSKA-Iwaniak
  • B. Kusz
  • M. Gazda
  • P. Jasiński

  - JOURNAL OF ELECTROCERAMICS - Year 2012

  W niniejszym artykule, dwa związki SrTiO3 domieszkowanego Fe przebadano pod względem przydatności na katody w tlenkowych ogniwach paliwowych. SrTi0.65Fe0.35O3 i SrTi0.5Fe0.5O3 zostały przebadane pod względem reaktywności chemicznej z elektrolitem YSZ. Stwierdzono, że przewodnictwo elektryczne tych związków jest stosunkowo niskie: 0,4 S/cm i 2 S/cm odpowiednio dla STF35 i STF50.

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• Microstructure and electrical properties of SrTi0.98Nb0.02O3-δ-based composites applied as porous layers for SOFCs

  Publication

  • B. Bochentyn
  • B. Kusz

  - Year 2012

  Przebadano właściwości elektryczne oraz strukturalne kompozytów Sr(Ti,Nb)O3-YSZ i Sr(Ti,Nb)O3-CeO2 naniesionych w postaci warstw porowatych na podłoża YSZ

• Fabrication, structural and electrical properties of Sr(V,Nb)O 3-δ perovskite materials

  Publication

  • T. Miruszewski
  • B. Kamecki
  • M. S. Łapiński
  • J. Karczewski

  - MATERIALS CHEMISTRY AND PHYSICS - Year 2018

  The SrV1-xNbxO3-δ materials with different niobium content in perovskite B-sublattice were prepared by a solid-state reaction process. The microstructure and phase compositions of obtained samples were analyzed by the X-ray diffraction technique (XRD) and scanning electron microscopy (SEM). The electrical conductivity of samples was measured by a DC 4-wire method in range of 100–600 °C in different gas conditions. The oxidation...

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• Synthesis, thermal, structural and electrical properties of vanadium-doped lithium-manganese-borate glass and nanocomposites

  Publication

  • A. Jarocka
  • P. Michalski
  • J. Ryl
  • M. Wasiucionek
  • J. Garbarczyk
  • T. Pietrzak

  - IONICS - Year 2020

  A glassy sample with a nominal formula LiMn1−3x/2VxBO3 (where x = 0.05) was synthesised using the melt-quenching method. Material was characterised by differential thermal analysis (DTA), X-ray diffactometry (XRD) at room temperature and as a function of temperature (HT-XRD), X-ray photoelectron spectroscopy (XPS), impedance spectroscopy (IS) and scanning electron microscopy (SEM). Dependences of glass transition and crystallisation...

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• Influence of the preparation method and aluminum ion substitution on the structure and electrical properties of lithium–iron ferrites

  Publication

  - Applied Nanoscience - Year 2021

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