| 1 | Author
| | Requires cookie* | | Title
|  | | | Abstract
| The parameters of complete X-ray struc ture determinations are given for the fluorides R b2N aF eF 6 and R b2K F eF 6 (cubic), Cs2NaCrF6 and Cs2N aF eF 6 (hexagonal-rhom-bohedral) and Cs2LiGaF6 (hexagonal). Space group and lattice constants of the monoclinic cyanides Cs2BFe(C N)6 (B = Na, K, Rb) are reported as well. | | |
Reference
| (Z. Naturforsch. 30b, 462—464 [1975]; eingegangen am 27. Februar 1975) | | |
Published
| 1975 | | |
Keywords
| Fluorides, Cyanides, Structure Determination | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/30/ZNB-1975-30b-0462_n.pdf | | | Identifier
| ZNB-1975-30b-0462_n | | | Volume
| 30 | |
2 | Author
| Irene Scheler, DietrichW. Wabner | Requires cookie* | | Title
| Impedance Measurements to Determine the Influence of Fluoride at Platinum Anodes During the Formation of Peroxodisulfate  | | | Abstract
| The electrode reactions at platinum anodes in 1.5 M H2S 0 4 + 2.3 M (N H 4)2S 0 4 solution with and without addition o f NaF (0.5 M) have been examined. Impedance spectra between 1 to 100.000 Hz were measured under galvanostatic conditions. Electrolyte, polarization, charge-transfer resistance (Rd), double-layer capacitance (CD) and inductance (L) were determined. For a constant current density, fluoride causes an increase o f CD and a decrease o f RD. At a certain potential (measured and corrected by the electrolyte resistance) CD nearly remains the same with and without fluoride, whereas RD is slightly increased by fluoride. This behaviour is explained by the double function o f the fluoride: It is adsorbed on the anode surface and causes an increase o f the real current density on the surface. Simultaneously, the evolution o f oxygen is hindered by fluoride. | | |
Reference
| Z. Naturforsch. 50b, 1717—1722 (1995); received May 26 1995 | | |
Published
| 1995 | | |
Keywords
| Persulfate Production, Impedance Spectroscopy, Fluoride, Platinum Electrodes | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/50/ZNB-1995-50b-1717.pdf | | | Identifier
| ZNB-1995-50b-1717 | | | Volume
| 50 | |
|