Martinez-Arias

J. Soria, A. Martinez-Arias and J.C. Conesa, J.Chem.Soc.Farad.Trans.,91(1995). 

Martinez-Arias, A., Fernandez-Garcia, M., Iglesias-Juez, A. et al. (2001) New Pd/CexZrj x02/Al203 three-way catalysts prepared by microemulsion Part 2. In situ analysis of CO oxidation and NO reduction under stoichiometric CO + NO + 02, Appl. Catal. B Environ., 31, 51. 

Iglesias-Juez, A., Martinez-Arias, A. and Fernandez-Garcia, M. (2004) Metal-promoter interface in Pd/(Ce,Zr)0 c/Al203 catalysts Effect of thermal aging, J. Catal., 221, 148. 

However, reduced ceria is able, alone, to dissociate NO. Martinez-Arias et al. [85] have first investigated by electron paramagnetic resonance (EPR) and FTIR spectroscopies NO reaction on ceria pre-outgassed at different temperatures and showed the role of superoxides differentially coordinated in the formation of hyponitrites species further decomposed into NzO. Later Haneda et al. [86] have demonstrated that reduced ceria and reduced praseodymium oxide dissociate NO even though the presence of a noble metal (Pt) significantly increases the formation of N2 or N20. The main results of this study are summarized in Table 8.9. 

Fernandez-Garcia, M., Fuerte, A., Hemandez-Alonso, M.D., Soria, J., and Martinez-Arias, A. (2007) Platinization of sunlight active Ti-W mixed oxide photocatalysts. Journal of Catalysis,... 

A. Martinez-Arias, J. M. Coronado, R. Cataluna, J. C. Conesa, and J. C. Soria, Influence of mutual platinum-dispersed ceria interactions on the promoting effect of ceria for the CO oxidation reaction in a R/Ce02/Al203 catalyst, J. Phys. Chem. B 102,4357 365 (1998). 

A. Martinez-Arias, M. Femandez-Garcia, V. Ballesteros, L.N. Salamanca, J.C. Conesa, C. Otero and J. Soria, Characterization of high surface area Zr-Ce (1 1) mixed oxide prepared by a microemulsion method, Langmuir 15,4796-4802 (1999). 

Iglesias-Juez, A Hungria, AB Martinez-Arias, A Fuerte, A Femandez-Garcia, M Anderson, JA Conesa, JC Soria, J. Nature and catalytic role of active silver species in the lean NOx reduction with CsIL in the presence of water, J. Catal, 2003, Volume 217, Issue 2, 310-323. 

C. Adan, A. Bahamonde, M. Femandez-Garcia and A. Martinez-Arias, Appl. Catal. B, 2007, 72, 11. 

A. Iglesias-Juez, A. Martinez-Arias, M. Fernandez-Garcia, J. Catal., 2004,221,148. 

P. Fornasiero, T. Montini, M. Graziani, J. Kaspar, A.B. Hungria, A. Martinez-Arias, J.C. Conesa, Phys. Chem. Chem. Phys., 2002, 4,149-... 

Deppenmeier U, Johann A, Hartsch T, Merkl R, Schmitz RA, Martinez-Arias R, Henne A, Wiezer A, Baumer S, Jacobi C, Bruggemann H, Lienard T, Christmann A, Bomeke M, Steckel S, Bhattacharyya A, Lykidis A, Overbeek R, Klenk HP, Gunsalus RP, Fritz HJ, Gottschalk G (2002) J Mol Microbiol Biotechnol 4 453 161... 

Jacinto A, Martinez-Arias A, Martin P (2001) Nat Cell Biol 3 E117... 

Kubacka A, Martinez-Arias A, Fernandez-Garcia M, Newton MA. Dynamic operando observation of 10 wt% Pd-based TWCs simultaneous XAS/DRIFTS/mass spectrometry analysis of the effects of Ceo.5Zro.5O2 loading on structure, reactivity and performance. Catal Today. 2009 145 288. 

This Raman band was used as an indicator to demonstrate a partial reoxidation of ceria at room temperature after a preceding reduction by CO at 473 K. According to the F2g Raman mode, reoxidation of previously reduced CuO/Ce02 restored its original, oxygen-vacancy-containing state (Martinez-Arias et al., 2006). 

Often it is not possible to determine such information by any other characterization method. This fact, combined with the elemental specificity of the method, the fact that the edge position can be determined accurately, and the high intensity of the edge features, has made this use of XANES popular for characterization of changes in catalysts in reactive atmospheres. There are now many reported examples of changes in oxidation state of an element as a function of reduction temperature determined by XANES (for some recent examples see Becker et al., 2007 Gamarra et al., 2007 Haider et al., 2007 Jentoft et al., 2005 Martinez-Arias et al., 2007 Reed et al., 2006 Safonova et al., 2006 Saib et al., 2006 Silversmit et al., 2006). 

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