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Hace 5 días · electron energy loss spectroscopy (EELS), revealing that the electronic nature of the Ti4+ cations within perovskite BO 6 octahedra is influencedby position within the Aurivillius structure. Layer-by-layer EELS analysis shows an ascending crystal fieldsplitting (Δ)
Hace 5 días · The spatially resolved EELS spectra demonstrates that the position of the t 2g peak position remains constant. Therefore, this change in Δ is due to a shift in the energy of the e g peak, which increases in energy moving from the outer to center perovskite layers.
Hace 3 días · We show that the diamond nanoparticles (DNPs) can indeed become embedded into iron or steels and move inside, at temperatures of 0.4 Tm ~ 0.6 Tm ( Tm = 1811 K is the melting point of Fe). The ...
Hace 2 días · Electron energy-loss spectroscopy (EELS) allows for imaging a sample’s core electronic structure and mapping its chemical elements. And cryoelectron microscopy—the development for which the 2017 Nobel Prize in Chemistry was awarded—enables researchers to determine the high-resolution structure of biomolecules in a cryogenic state (see Physics Today , December 2017, page 22 ).
Hace 4 días · The present work reports a comparative study on CuO and 3.0% Mn-doped CuO nanofibers (NFs) produced by the electrospinning method. State-of-the-art characterization techniques such as Electron Energy Loss Spectroscopy (EELS) and X-Ray photoelectron Spectroscopy (XPS) have been employed to determine the multivalent states and elucidate their electronic structure at the Cu-L3,2 (2p) edge.
Hace 3 días · The EELS data indicate that water near the CNT inner wall has a lesser degree of H-bonding than that at the center forming water cluster. The strong nanoconfinement effects are mainly observed within the first ~2 nm of the CNT inner wall, which would be ~64% of the volume of a 10-nm CNT, but only ~36% of a 20-nm CNT, <9% of the volume of a 90-nm CNT, and <4% of the volume of a 250-nm CNT.
Hace 19 horas · We then collected EELS measurements on the same film, which are presented in Fig. 2c and show an approximately 5-nm-thick surface oxide layer, which we observed in all samples, and a homogeneous ...
