Experimental and theoretical investigations on low temperature EPR of Cu2+ centers in TiO2 rutile single crystal

Interface Modulation of FePc/Porous Ti(HPO4)2 Z‐Scheme Heterojunctions with Ultrafine Ag for Efficiently Photocatalytic CO Oxidation

“…The low temperature electron paramagnetic resonance (EPR) was conducted at 98 K to assure the hypothesis. As shown in Figure S20, Supporting Information, a typical EPR signal assigned to Fe 2+ [ 38–40 ] is detected on FePc in dark, and remained under the illumination of a 660 nm monochromatic light. Turning to the 4FePc/TiP NS heterojunction, one can see that both the Fe 2+ and the relevant TiP signals (Figure S21, Supporting Information) could be collected in dark, and there is no detectable change of the EPR signal under 350 or 660 nm excitation; however, the characteristic signal for Fe 2+ decreases when it is exposed to the simultaneous excitation of 350 and 660 nm beams (Figure 4c).…”

Efficiency of Application of (Mo, Al)N-Based Coatings with Inclusion of Ti, Zr or Cr during the Turning of Steel of Nickel-Based Alloy

“…While it is possible to assume the formation of noticeable amounts of oxides for both Coatings M1 and M2, the oxides differ significantly in their properties and their influence on the cutting process. The Ti oxide is a considerably soft and porous substance that does not exhibit noticeable tribological properties [56,57], and Mo oxide of MoO 3 , on the contrary, is a fairly solid and dense substance with excellent tribological properties [58,59]. Based on the oxygen content in Area A for Coatings M1 and M2, it can be assumed that the MoO 3 film formed on Coating M1 is characterised by good integrity and can have a noticeable effect on the cutting conditions.…”