Fabrication of metallic nanoparticles by electrochemical discharges
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The invention describes a method for electrochem. producing the peroxodisulfuric acid and peroxodisulfates by electrochem. oxidn. of sulfuric acid. The process was carried using on an anode which, preferably, was not completely prepolarized and which was c ...
(Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Germany; CSEM Centre Suisse d'Electronique et de Microtechnique S.A.).2001
The spark assisted chem. engraving (SACE) of glass has been investigated using current/voltage measurements combined with photographs of the tool electrode under different regimes. Depending on the applied potential, different domains have been identified. ...
Fabrication of high-density ferroelectric memories requires the growth of the ferroelectric material on the drain contact metal. In standard 0.5 mum technology, tungsten plugs are applied to connect the drain contacts to the first metallization level. In t ...
Oxygen and hydrogen peroxide electroredn. on La0.6Ca0.4CoO3 perovskite electrodes was studied in alk. media. Rotating disk electrodes were built using pure powders of the oxide to avoid any side reactions on the catalyst support, e.g. carbon. For O2 redn., ...
In a high capacity primary or secondary cell, the active material of at least one of the electrodes is selected from transition metal oxides or their (partially) lithiated forms, such as TiO2, Nb2O5, HfO2, MnO2, LiyNiO2, LiyCo2, Ldy(NiCo)O2, or LiyMn2O4, i ...
Nanostructured Li4Ti5O12 (spinel) was prepared via a method employing lithium ethoxide and Ti(IV) alkoxides as the starting reagents. The optimized materials contained less than 1% of anatase as the main impurity and, depending on the synthetic conditions, ...
The oxidation of methanol on gold electrodes modified with polypyrrole and platinum is reported. These electrodes were characterized by cyclic voltammetry and by 12h polarizations in methanol solutions. They were found to give higher currents and lower rat ...
Multicompartment electrolyzers with isoelec. Immobiline membranes are used for large-scale preparative protein purifn. A series of isoelec. membranes, of defined pI values, is utilized for keeping any desired species isoelec. within each compartment of the ...
A high kinetics rate electrochemical cell in which at least one of the electrodes is composed of a mesostructural electroactive material is comprising a three-dimensional framework structure of mesoporous texture forming a bicontinuous junction of large sp ...
The chem. redn. of anthraquinone(I) has at least 2 disadvantages on the industrial scale; therefore, an electrochem. method was developed. The electrochem. redn. of I is done in a 2-compartment cell using concd. H2SO4 (15-17 mol/dm3) as the electrolyte at ...