The evolution of the constituents an 8 wt%Ni-5 wt%Fe/MgAl2O4 catalyst for dry reforming methane (DRM) is monitored by in situ quick X-ray absorption spectroscopy (QXAS) and 57Fe Mössbauer spectroscopy. In as prepared state, Fe present NiFe2O4 at surface MgFe3+xAl2?xO4 within support, whereas Ni mainly NiO. During H2-TPR, NiO form alloy from 500 °C on partially reduced to MgFe2+xAl2?xO4, such th...

This thesis deals with the synthesis, characterisation, and some applications of ferrimagnetic iron oxide nanoparticles. The iron oxide systems presented in this work are Fe3O4, γ-Fe2O3, NixFe3−xO4, CoxFe3−xO4. Iron oxide nanoparticles were prepared using chemical synthesis methods. Nanoparticles with a narrow size distribution were synthesised using zone confinement methods such as nanoemulsio...

nt matter & 2013 0.1016/j.nanoen.2 thor. Tel.: (65)-67 [email protected] (P Abstract In this work, we present the formation of porous NiCo oxide nanowires from single crystal nickel cobalt bimetallic carbonate hydroxide nanowires (NiCo cNW) for supercapacitor applications. High aspect ratio NiCo cNWs are found to evolve from highly crystalline nickel cobalt layered double hydroxides through a dode...

no. 70, p. 114. Qiming Zhong, Arman Bonakdarpour, Meijie Zhang, Yuan Gao, and J. R. Dahn, J. Electrochem. Soc. ~to be published!. W. R. McKinnon, in Solid State Electrochemistry, edited by P. G. Bruce ~Cambridge University Press, Cambridge, 1995!, Chap. 7, pp. 163–198. J. R. Dahn, J. N. Reimers, T. Tiedje, Y. Gao, A. K. Sleigh, W. R. FIG. 7. A comparison of the top of the valence band of the UP...