• Keine Ergebnisse gefunden

Application of n-Dodecyltrimethylammonium Chloride for the Oxidation of Intermetallic Phases

N/A
N/A
Protected

Academic year: 2022

Aktie "Application of n-Dodecyltrimethylammonium Chloride for the Oxidation of Intermetallic Phases"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Volltext

(1)

Application of n-Dodecyltrimethylammonium Chloride for the Oxidation of Intermetallic Phases

Bodo B¨ohme, Stefan Hoffmann, Michael Baitinger, and Yuri Grin

Max-Planck-Institut f¨ur Chemische Physik fester Stoffe, N¨othnitzer Straße 40, 01187 Dresden, Germany

Reprint requests to B. B¨ohme. Fax: +49 351 46 46 40 02. E-mail: bodo.boehme@cpfs.mpg.de Z. Naturforsch.2011,66b,230 – 238; received November 6, 2010

The thermal decomposition products of ionic liquids based onn-dodecyltrimethylammonium chlo- ride (DTAC) were used for the preparation of the metastable allotrope Ge(cF136) by oxidation of Na12Ge17in gas-solid reactions. This method of preparation provides a promising low-temperature route for the synthesis of intermetallic phases and elemental modifications. In order to explore the re- action mechanism, we investigated the thermal decomposition of DTAC as well as of the ionic liquids DTAC/MgCl2and DTAC/AlCl3byin-situmass spectrometry and by powder X-ray diffraction. The results have revealed HCl, CH3Cl and 1-chlorododecane to act as oxidizing agents in the gas-solid redox reactions.

Key words:DTAC, Ionic Liquid, Oxidation, Ge(cF136), Ge(hR8)

Referenzen

ÄHNLICHE DOKUMENTE

From the measured values of the losses ε″ during the thermal decomposition of supported [BMIM][DMP] (Figure 1), the apparent pore fi lling degree α app,RF can be calculated using eq

To study the light spread in the cochlea of different animal species of interest using different illumination paradigms we used Monte Carlo ray tracing simulation, in the

Metal nanoparticles can be synthesized in ionic liquids [79] through chemical reduction [80 – 85] or decomposition [86 – 89], by means of photochem- ical reduction [90, 91]

The oxidation of Na 12 Ge 17 to Ge(cF136) by the use of DTAC-based ionic liquids in gas-solid reactions is explained: The oxidizing agents HCl, CH 3 Cl and 1- chlorododecane are

Z.Naturforsch.65a, 453 – 460 (2010); received June 30, 2009 / revised September 16, 2009 In many fields of the contemporary science and technology, systems with delaying links often

The water and [1,2-DAPH 2 ] 2+ cations are located within the channels and form hydrogen bonds to O atoms of the germanate framework.. The different channels are surrounded by Ge 9 O

The effects were studied of dodecyltrimethylammonium chloride (DTAC), dodecyltrimeth- ylammonium bromide (DTAB) and dodecyltrimethylammonium iodide (DTAI) on thermo- tropic

Determine the total receiver noise temperature (mixer + IF-chain) in dependence on the oscil- lator power (1dB steps until max. 10dB by combination of fixed attenuators) using the