X-ray photoelectron study of Sn1−xMnxTe semimagnetic semiconductors

Mesoporous manganese oxides prepared by solution combustion synthesis as catalysts for the total oxidation of VOCs

“…As can be seen in Fig. 13, the Mn 3 O 4 -based monolith showed good catalytic performances for the total VOC oxidation, which are comparable to those obtained with the powder Mn 3 O 4 (T 50 with GHSV = 19,100 h −1 ). However, better results were achieved at lower GHSV (9500 h −1 ), since the reactant molecules (O 2 and VOCs) are retained more within the pores, thus favoring total oxidation reactions.…”

X-ray photoelectron study of NiAs-type MnTe

“…The above parameters of Te 3d XPS spectrum of H-MnTe agree very well with the relevant ones of Sn 1−x Mn x Te (x = 0.09) and zb-MnTe {i.e. E Te B (SnMnTe) = 572.7 eV [29], E Te B (zb-MnTe) = 572.8 eV [22]}, and remain identical with those of SnTe [29].…”

“…The numerical simulation of this spectrum was performed using four Gaussian doublets (representing partial Mn 2p contributions) with the fixed theoretical intensity ratio of their spin-orbit components (2p 3/2 , 2p 1/2 )-the same approach was used earlier in Ref. [29]. Their main parameters (binding energy-E B , FWHM, spin-orbit splitting energy-SO ) were inserted in Table 1.…”

“…2) exhibits a typical form of a single doublet (without any trace of surface oxide species-see Refs. [23,29] and references therein) with a binding energy of the main peak (Te 3d 5/2 ) equal E Te B = 572.6 eV and SO = 10.40 eV (see Table 1). The above parameters of Te 3d XPS spectrum of H-MnTe agree very well with the relevant ones of Sn 1−x Mn x Te (x = 0.09) and zb-MnTe {i.e.…”

“…3 indicates a qualitative similarity of the Mn 2p XPS spectrum of H-MnTe with the relevant one of SnMnTe (acquired from in situ cleaved surface) [29].…”