Browsing by Subject "Cobalt"

Now showing items 1-7 of 7

    • Article  

      Coexistence of ferromagnetic and glassy behavior in semiconducting LaNi 0.2Co 0.8O 3 

      Androulakis, J.; Katsarakis, N.; Giapintzakis, John (2002)
      Systematic dc and ac magnetic susceptibility studies have been performed on single-phase LaNi 0.2Co 0.8O 3 powder samples. Evidence of hysteresis loops supports the existence of ferromagnetic correlations that lead to a ...
    • Article  

      A microporous Co2+ metal organic framework with single-crystal to single-crystal transformation properties and high CO2 uptake 

      Moushi, Eleni E.; Kourtellaris, Andreas; Spanopoulos, Ioannis; Manos, Manolis J.; Papaefstathìou, Giannis S.; Trikalitis, Pantelis N.; Tasiopoulos, Anastasios J. (2015)
      The synthesis and characterization of {[Co9(INA)18(H2O)6]·11DMF·15H2O}∞ (Co9-INA·11DMF·15H2O) (INA- = the anion of isonicotinic acid) is reported. It exhibits a rigid 3D-porous structure with a Co9 repeating unit consisting ...
    • Article  

      Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis 

      Hong, B.; Llandro, J.; Hayward, T. J.; Mitrelias, Thanos; Kopper, K. P.; Trypiniotis, Theodossis; Steinmuller, S. J.; Barnes, C. H. W.; Van Phong, L.; Kim, C.; Jeong, J. -R (2009)
      In this paper, we have investigated a remote encoding/decoding method of micrometer-sized multibit magnetic tags and demonstrated the operation of magnetic digital tags to discuss the practical issues which arise. The tags ...
    • Article  

      Organized silica films generated by evaporation-induced self-assembly as hosts for iron oxide nanoparticles 

      Andreou, Ioanna; Amenitsch, H.; Likodimos, Vlassis; Falaras, Polycarpos; Koutsoukos, Petros George; Leontidis, Epameinondas (2013)
      In this work, we prepared oriented mesoporous thin films of silica on various solid substrates using the pluronic block copolymer P123 as a template. We attempted to insert guest iron oxide (FexOy) nanoparticles into these ...
    • Article  

      Regeneration of aged commercial three-way catalysts using CI-containing reagents 

      Christou, Stavroula Y.; Efstathiou, Angelos M. (2013)
      The present work is focused on applying washing treatments using Cl-containing reagents, such as di-chloroacetic acid (DCA) for the first time, and 1,2-di-chloropropane, DCP (0.1 M) solutions in regaining the activity and ...
    • Article  

      Resistive switching phenomena in Li xCoO 2 thin films 

      Moradpour, A.; Schneegans, O.; Franger, S.; Revcolevschi, A.; Salot, R.; Auban-Senzier, P.; Pasquier, C.; Svoukis, E.; Giapintzakis, John; Dragos, O.; Ciomaga, V.-C.; Chrétien, P. (2011)
      A substantial resistive switching of Li xCoO 2 mixed-conductor thin films is observed for the first time. The occurrence of possible bipolar switching in these oxide thin films is by current-voltage curves, investigated ...
    • Article  

      Surface reactivity of LaCoO3 and Ru/LaCoO3 towards CO, CO2 and C3H8: Effect of H2 and O2 pretreatments 

      Álvarez-Galván, M. C.; Constantinou, D. A.; Navarro, R. M.; Villoria, J. A.; Fierro, José Luis García; Efstathiou, Angelos M. (2011)
      The differences in surface reactivity of LaCoO3 and Ru/LaCoO3 solids after pre-treatment in a hydrogen or oxygen gas atmosphere towards oxidative steam reforming (OSR) of propane was probed by performing temperature-programmed ...