Browsing NTNU Open by Author "Skjærvø, Susanne Linn"

Now showing items 1-13 of 13

    • Controlling Oriented Attachment and in Situ Functionalization of TiO2 Nanoparticles During Hydrothermal Synthesis with APTES 

      Dalod, Antoine Robert Marie; Grendal, Ola Gjønnes; Skjærvø, Susanne Linn; Inzani, Katherine; Selbach, Sverre Magnus; Henriksen, Lars; van Beek, Wouter; Grande, Tor; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2017)
      Understanding growth mechanisms and the role of surface functionalization is of key importance to control shape and morphology of nanoparticles and their properties. Here, we describe the growth mechanism and the effect ...

    • Facile Low Temperature Hydrothermal Synthesis of BaTiO3 Nanoparticles Studied by In Situ X-ray Diffraction 

      Grendal, Ola Gjønnes; Blichfeld, Anders Bank; Skjærvø, Susanne Linn; van Beek, Wouter; Selbach, Sverre Magnus; Grande, Tor; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2018)
      Ferroelectric materials are crucial for today’s technological society and nanostructured ferroelectric materials are important for the downscaling of devices. Controlled and reproducible synthesis of these materials are, ...

    • A fast, low temperature synthesis method for hexagonal YMnO3: Kinetics, purity, size and shape as studied by in situ X-ray diffraction 

      Marshall, Kenneth; Blichfeld, Anders Bank; Skjærvø, Susanne Linn; Grendal, Ola Gjønnes; Van Beek, Wouter; Selbach, Sverre Magnus; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2020)
      The reaction mechanisms, phase development and kinetics of the hydrothermal synthesis of hexagonal‐YMnO3 from Y2O3 and Mn2O3 using in situ X‐ray diffraction are reported under different reaction conditions with temperatures ...

    • Formation mechanism and growth of MNbO3,M=K, Na by in situ X-ray diffraction 

      Skjærvø, Susanne Linn; Sommer, Sanna; Nørby, Peter; Bøjesen, Espen Drath; Grande, Tor; Iversen, Bo B; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2017)
      Hydrothermal synthesis is a well-established method to produce complex oxides, and is a potential interesting approach to synthesize stoichiometric lead-free piezoelectric K0.5Na0.5NbO3. Due to challenges in obtaining the ...

    • In situ characterization during hydrothermal synthesis of alkali niobates 

      Skjærvø, Susanne Linn (Doctoral theses at NTNU;2018:318, Doctoral thesis, 2018)

    • Kinetics during hydrothermal synthesis of nanosized KxNa1-xNbO3 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Van Beek, Wouter; Grande, Tor; Einarsrud, Mari-Ann (Journal article, 2018)
      Hydrothermal synthesis is an efficient method of making nanosized functional oxide materials, and it has also been used to synthesize KxNa1−xNbO3 solid solution, a promising lead-free piezoelectric material. However, the ...

    • Kompleksdannere under våtkjemisk syntese av oksider 

      Skjærvø, Susanne Linn (Master thesis, 2013)
      Effekten av ulike komplekseringsmidler i den modifiserte Pechini-metoden har blitt studert ved å benytte malon-, eple- og vinsyre under syntesen CuAlO2 med delafossittstruktur og eple- og vinsyre for NaLa(WO4)(MoO4) med ...

    • Luminescent Eu3+-doped NaLa(WO4)(MoO4) and Ba2CaMoO6 prepared by the modified Pechini method 

      Sletnes, Malin; Skjærvø, Susanne Linn; Lindgren, Mikael; Grande, Tor; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2016)
      Modified Pechini synthesis routes were developed for synthesis of the novel red phosphor materials NaLa(WO4)(MoO4):Eu3+ and Ba2CaMoO6:Eu3+. Phase pure NaLa(WO4)(MoO4):Eu3+ was obtained at calcination temperatures ≥600 °C ...

    • Rationalization of hydrothermal synthesis of NaNbO3 by rapid in situ time-resolved synchrotron X-ray diffraction 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Sommer, Sanna; Vu, Tuong-Dan; Tolchard, Julian R; van Beek, Wouter; Grande, Tor; Iversen, Bo B.; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2018)
      In situ monitoring of the formation of crystalline phases during conventional hydrothermal synthesis is experimentally challenging. Here, we report an in situ time-resolved synchrotron X-ray diffraction study during ...

    • Reaction pathway of the hydrothermal synthesis of AgCuO2 from in situ time-resolved X-ray diffraction 

      Liu, hongjun; Grendal, Ola Gjønnes; Skjærvø, Susanne Linn; Dalod, Antoine Robert Marie; van Beek, Wouter; sekkat, abderrahime; Einarsrud, Mari-Ann; munoz-Rojas, David (Journal article; Peer reviewed, 2020)
      AgCuO2 is an interesting semiconductor oxide with appealing optical and electronic properties. While the oxide has been synthesized in bulk by different approaches, no study on the formation mechanism has been carried out ...

    • Super-coercive electric field hysteresis in ferroelectric plastic crystal tetramethylammonium bromotrichloroferrate(III) 

      Walker, Julian; Miranti, Rany; Skjærvø, Susanne Linn; Rojac, Tadej; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2020)
      Ionic plastic crystals are part of an emerging class of hybrid organic–inorganic ferroelectrics. The combination of low dielectric constants (<20), strong piezoelectric coefficients (>100 pC N−1) and low temperature synthesis ...

    • Thermal evolution of the crystal structure and phase transitions of KNbO3 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Blichfeld, Anders Bank; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2018)
      The thermal evolution of the crystal structure and phase transitions of KNbO3 were investigated by high-temperature powder X-ray diffraction and Rietveld refinement of the diffraction data. Two phase transitions from ...

    • Understanding the Hydrothermal Formation of NaNbO3: Its Full Reaction Scheme and Kinetics 

      Skjærvø, Susanne Linn; Ong, Gary K.; Grendal, Ola Gjønnes; Wells, Kristin Høydalsvik; Van Beek, Wouter; Ohara, Koji; Milliron, Delia J.; Tominaka, Satoshi; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2021)
      Sodium niobate (NaNbO3) attracts attention for its great potential in a variety of applications, for instance, due to its unique optical properties. Still, optimization of its synthetic procedures is hard due to the lack ...