Zobrazeno 1 - 10
of 236
pro vyhledávání: '"W. Freyland"'
Publikováno v:
Langmuir. 20:2781-2784
Self-assembled monolayers of shape-persistent macrocycles have been adsorbed on highly oriented pyrolytic graphite and Au(111) substrates. Their structure and binding characteristics have been investigated by scanning tunneling microscopy, X-ray phot
Autor:
W. Freyland, C. A. Zell
Publikováno v:
Langmuir. 19:7445-7450
The electrocrystallization of Co and Co−Al alloys has been investigated for the first time from a chloroaluminate ionic liquid, AlCl3/[BMIm]+Cl-, on Au(111) by in situ electrochemical scanning tunneling microscopy (STM) and spectroscopy (STS). In c
Publikováno v:
Journal of Physics: Condensed Matter. 15:1553-1562
We have studied the electron spin resonance (ESR) spectra in liquid K–KCl and M–(NaCl/KCl)eut mixtures at different concentrations in salt-rich melts approaching the metal–nonmetal transition region. In both systems F-centre-like characteristic
Publikováno v:
Physical Chemistry Chemical Physics. 2:2261-2264
We report impedance and spectroellipsometric measurements of ligand stabilized Cu2n−xSenLm-cluster compounds for n=6, 22, 35 and 73 (x=0, 2). The impedance spectra for n=35 and 73 are quantitatively described by two Debye relaxation processes—pre
Autor:
T. Schindelbeck, W. Freyland
Publikováno v:
The Journal of Chemical Physics. 105:4448-4456
We have measured the electron spin resonance (ESR) spectra of saltrich KxKCl1−x melts at temperatures near 800 °C and over a broad composition range, 10−4≤x≤10−1, approaching the metal–nonmetal (M–NM) transition in these solutions. Emp
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 99:21-31
We have studied the reduction mechanism and electronic conduction during electrodeposition of tantalum in various TaCl 5 -alkali chloride melts at temperatures up to 1100 K. This has been performed by simultaneous measurements of impedance and Raman
Autor:
I. Mukhopadhyay and, W. Freyland
Publikováno v:
Langmuir. 19:1951-1953
Ti nanowires have been deposited electrochemically, with in situ monitoring by scanning tunneling microscopy, at the step edge of highly oriented pyrolytic graphite (HOPG) at room temperature from 0.24 M TiCl4 in the ionic liquid 1-butyl-3-methyl imi
Publikováno v:
The Journal of Physical Chemistry. 98:742-747
We have studied the electronic absorption spectra of niobium chloride and oxychloride compounds in different oxidation states and of the reduction products of pentavalent niobium and tantalum in various alkali chloride melts at different temperatures
Autor:
W. Freyland
Publikováno v:
Zeitschrift für Physikalische Chemie. 184:139-155
Publikováno v:
The Journal of Chemical Physics. 98:4429-4436
Optical absorption spectra are reported for liquid KxKCl1−x (10−5≤x≤5×10−2) and NaxNaBr1−x (10−3≤x≤3×10−2) solutions at 800 °C in the energy range 0.5≤hν≤5 eV. The composition has been varied in situ by Coulometric titrati