| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mohammadi, Mohammadreza
University of Dundee
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (48/48 displayed)
- 2020A calibrated oat lodging model compared with agronomic measurementscitations
- 2019Performance of CoTiO3 as an oxide perovskite material for the light scattering layer of dye-sensitized solar cellscitations
- 2018Novel microwave-assisted synthesis of porous g-C3N4/SnO2 nanocomposite for solar water-splittingcitations
- 2017TiO2–BaTiO3 nanocomposite for electron capture in dye-sensitized solar cellscitations
- 2017In-situ solvothermal processing of polycaprolactone/hydroxyapatite nanocomposites with enhanced mechanical and biological performance for bone tissue engineeringcitations
- 2017On the assessment of photocatalytic activity and charge carrier mechanism of TiO2@SnO2 core-shell nanoparticles for water decontaminationcitations
- 2016Plasmonic Effects of Infiltrated Silver Nanoparticles Inside TiO2 Filmcitations
- 2016Soluble tetratriphenylamine Zn phthalocyanine as Hole Transporting Material for Perovskite Solar Cellscitations
- 2016Impact of preparation method of TiO2-RGO nanocomposite photoanodes on the performance of dye-sensitized solar cellscitations
- 2016Effects of alumina nanoparticles concentration on microstructure and corrosion behavior of coatings formed on titanium substrate via PEO processcitations
- 2014Sensor Performance of Nanostructured TiO2-SnO2 Films Prepared by an Aqueous Sol-Gel Processcitations
- 2014Semiconductor TiO2-Al2O3 thin film gas sensors derived from aqueous particulate sol-gel processcitations
- 2014Development of sol-gel-derived multi-wall carbon nanotube/hydroxyapatite nanocomposite powders for bone substitutioncitations
- 2014Study plasma electrolytic oxidation process and characterization of coatings formed in an alumina nanoparticle suspensioncitations
- 2014Sensor performance of nanostructured TiO2-Cr2O3 thin films derived by a particulate Sol-Gel route with various Cr:Ti molar ratioscitations
- 2013Experiments design for hardness optimization of the ni-cr alloy electrodeposited by pulse platingcitations
- 2013Preparation and characterization of multi-walled carbon nanotube/hydroxyapatite nanocomposite film dip coated on Ti-6Al-4V by sol-gel method for biomedical applications:An in vitro studycitations
- 2013Synthesis of highly pure nanocrystalline and mesoporous CaTiO3 by a particulate sol-gel route at the low temperaturecitations
- 2013Preparation and characterization of multi-walled carbon nanotube/hydroxyapatite nanocomposite film dip coated on Ti-6Al-4V by sol-gel method for biomedical applicationscitations
- 2013Development of nanostructured porous TiO2 thick film with uniform spherical particles by a new polymeric gel process for dye-sensitized solar cell applicationscitations
- 2013Improved electron transportation of dye-sensitized solar cells using uniform mixed CNTs-TiO2 photoanode prepared by a new polymeric gel processcitations
- 2013In vitro study of hydroxyapatite/polycaprolactone (HA/PCL) nanocomposite synthesized by an in situ sol-gel processcitations
- 2012Low temperature nanocrystalline TiO 2-Fe 2O 3 mixed oxide by a particulate sol-gel routecitations
- 2012Tailoring of morphology and crystal structure of nanomaterials in MgO-TiO 2 system by controlling Mg:Ti molar ratiocitations
- 2012Development of hydroxyapatite nanorods-polycaprolactone composites and scaffolds derived from a novel in-situ sol-gel processcitations
- 2011Template-based growth of titanium dioxide nanorods by a particulate sol-electrophoretic deposition processcitations
- 2011Synthesis and characterisation of nanosized TiO2-ZrO2 binary system prepared by an aqueous sol-gel processcitations
- 2011Preparation and characterization of nanocrystalline and mesoporous strontium titanate thin films at room temperaturecitations
- 2011One-dimensional cadmium sulfide (CdS) nanostructures by the solvothermal processcitations
- 2011Wear and corrosion properties of electroless nickel composite coatings with PTFE and/or MoS2 particlescitations
- 2011Synthesis of nanostructured and nanoporous TiO2-AgO mixed oxide derived from a particulate sol-gel routecitations
- 2011Sol-gel derived nanocrystalline and mesoporous barium strontium titanate prepared at room temperaturecitations
- 2010Synthesis and characterisation of nanostructured neodymium titanium oxides by sol-gel processcitations
- 2010Low temperature nanostructured zinc titanate by an aqueous particulate sol-gel routecitations
- 2010Mesoporous and nanocrystalline sol-gel derived NiTiO3 at the low temperaturecitations
- 2010Low temperature nanostructured lithium titanatescitations
- 2010Nanostructured TiO2-CeO2 mixed oxides by an aqueous sol-gel processcitations
- 2009Low-temperature perovskite-type cadmium titanate thin films derived from a simple particulate sol-gel processcitations
- 2009Development of nanocrystalline TiO2-Er2O3 and TiO2-Ta2O5 thin film gas sensorscitations
- 2009Water-based sol-gel nanocrystalline barium titanatecitations
- 2008Sol-gel nanostructured titanium dioxidecitations
- 2008Influence of secondary oxide phases on microstructural and gas sensitive properties of nanostructured titanium dioxide thin films
- 2008Comparison of single and binary oxide sol-gel gas sensors based on titaniacitations
- 2007Preparation and characterisation of nanostructural TiO2-Ga 2O3 binary oxides with high surface area derived form particulate sol-gel routecitations
- 2007A simple particulate sol-gel route to synthesize nanostructural TiO2-Ta2O5 binary oxides and their characteristicscitations
- 2007Semiconductor TiO2-Ga2O3 thin film gas sensors derived from particulate sol-gel routecitations
- 2006Preparation of high surface area titania (TiO2) films and powders using particulate sol-gel route aided by polymeric fugitive agentscitations
- 2006Preparation and characterisation of nanostructural TiO2-Er 2O3 binary oxides with high surface area derived from particulate sol-gel routecitations
Places of action
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article
Synthesis and characterisation of nanostructured neodymium titanium oxides by sol-gel process
Abstract
<p>Nanocrystalline neodymium titanium oxide thin films and powders with different phase compositions with mesoporous structure were produced by a straightforward particulate sol-gel route. The sols were prepared in various Nd:Ti molar ratios and they showed a narrow particle size distribution in the range 20-26 nm. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) revealed that the powders contained mixtures of Nd<sub>4</sub>Ti<sub>9</sub>O<sub>24</sub>, Nd<sub>2</sub>Ti<sub>4</sub>O<sub>11</sub>, Nd<sub>3</sub>Ti<sub>4</sub>O<sub>12</sub> for titanium dominant powders (Nd:Ti ≤ 45:60), mixtures of Nd<sub>2</sub>TiO<sub>5</sub> and Nd<sub>2</sub>O<sub>3</sub> for neodymium dominant powders (Nd:Ti ≥ 75:25) and pure Nd<sub>3</sub>Ti<sub>4</sub>O<sub>12</sub> phase for equal molar ratio of Nd:Ti, depending on the annealing temperature and Nd:Ti molar ratio. Moreover, it was found that Nd:Ti molar ratio influences the preferable orientation growth of the neodymium titanium oxide compounds. Transmission electron microscope (TEM) images confirmed that the average crystallite size of the powders annealed at 400 °C was in the range 1.0-2.8 nm and a gradual increase was occurred up to 6.7 nm by heat treatment at 1000 °C. The activation energy of crystal growth reduced with a decrease of Nd:Ti molar ratio, calculated in the range 6.90-18.12 kJ mol<sup>-1</sup>. Low activation energies indicating that the grain size will not change much with increase in temperature. Field emission scanning electron microscope (FE-SEM) analysis revealed that the deposited thin films had uniform, mesoporous and nanocrystalline structure. Moreover, atomic force microscope (AFM) images presented that the thin films had a columnar like morphology with average grain size in the range 17-30 nm at 600 °C and 47-60 nm at 800 °C, depending upon the Nd:Ti molar ratio. Based on Brunauer-Emmett-Taylor (BET) analysis, the synthesized powders showed mesoporous structure containing pores with sphere like shapes. The surface area of the powders was enhanced by increasing Nd:Ti molar ratio and reached as high as 110 m<sup>2</sup> g<sup>-1</sup> for the powder containing Nd:Ti = 75:25 (molar ratio) at 400 °C. In addition, the mesoporous structure of the powders was stable at high annealing temperatures up to 900 °C.</p>