Evonik Operations Gmbh

Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Degussa - Huls Ag

Evonik Industries Ag

Evonik Functional Solutions Gmbh

Evonik Rohm Gmbh

Friedrich-alexander-universitat Erlangen-nürnberg

Ruhr-universitat Bochum

Patrik Stenner

Christian Hying

Thomas Lehmann

Thorsten Schultz

Harald Jakob

Dieter Kerner

Manfred Neumann

Sascha Hoch

Mareike Giesseler

Jens Busse

Magdalena Kern

Silvia Blank-shim

Cornelia Borgmann

Stephan Wieber

Matthias Patz

Claus-Peter Drexel

Julian Teichmann

Axel Ronneburg

Martin G Hitzler

Juri Tschernjaew

Christian Renner

Michael Horn

Odo Wunnicke

Harald Häger

Stephan Traut

Rüdiger Schütte

Wojciech Pisula

Reinhard Carius

Timo Stahl

Michael Beyer

Daniel Fischer

Philip Heinrich Reinsberg

Joachim Erz

Michael Coelle

Janette Klatt

Ann-Kathrin Herr

Dirk Heinrich

Felix Gärtner

Alexander Klein

Wolfgang Schumann

Manfred Nagel

Christoph Mader

Paul Henrich Woebkenberg

Sebastian Bernhardt

Wolfgang Deis

Steliyana Dimitrova

Tobias Karl Hubert Müller

Ali Asghar Enkeshafi

Valeri Leich

Jonas Hönig

Verena Breuers

Stefan Schumann

Zeljko Rajic

Jutta Malter

Tobias Stadtmüller

Stefan Fiedler

Aymee Lisette Michel De Arevalo

Paw V Mortensen

Tanja Seitz

Martina Gottheis

Andreas K&uuml;ver

Torsten Bronger

Decker Nicole

Johannes Ruwwe

Yikalo-Eyob Tecle

Prof Nicolas Vogel

Dr Sascha Hoch

Martn G Hitzler

Sacha Hoch

Paul Henrich WÖBKENBERG

Michael CÖLLE

Ann-Kathrin KRÄMER

De Arevalo Aymee Lisette Michel

Frank LÖFFFLER

Sabrina Juretzka

Tobias Stadtmuller

Felix Gartner

Magdalena Gellner

Meike Dahlhues

Silke Suhr

Huong Klink-tran

Jessica Antoni

Elisabeth Gorman

Frank Löffler

Maya Krapfl

Stefan Hilf

Nicole Decker

Sebastian Arndt

A process can be used for the functionalization of graphene material by mixing graphene material with at least one silane. The functionalized graphene material is useful, for example, in thermoplastics.

Functionalized graphene, method for producing a functionalized graphene, and its use

The invention relates to a method of cell lysis for forming at least one pore in the cell wall and/or cell membrane of a cell in an aqueous medium for release of at least one intracellular target protein and/or lipid from the cell into the aqueous medium, including subjecting the cell with the intracellular target protein and/or lipid in the aqueous medium to an electrohydraulic comminution; and separating the target protein and/or lipid from the cell. The electrohydraulic comminution is brought about by a pulse current source. The cell in the aqueous medium is subjected to electrical impulse discharges between at least two electrodes of an underwater radio path of a container at a specific operating voltage, impulse energy, and pulse frequency, and at least one pore is formed in the cell wall and/or cell membrane.

Method of cell lysis

A process for electrochemical preparation of an alkali metal alkoxide solution is performed in an electrolysis cell having three chambers. The middle chamber is separated from the cathode chamber by a solid-state electrolyte permeable to cations, for example NaSICON, and from the anode chamber by a diffusion barrier, for example a membrane selective for cations or anions.

Process for preparing alkali metal alkoxides in a three-chamber electrolysis cell

A method can produce a thermoelectric component or at least a semifinished version of the thermoelectric component. The method includes: a) providing a substantially planar substrate; b) providing a pulverulent thermoelectrically active material; c) pressing the active material to form green bodies; d) inserting green bodies into through-holes of the substrate; e) arranging the substrate with the green bodies inserted therein between two substantially planar electrodes; f) contacting face ends of the green bodies with the electrodes; g) exposing the green bodies to an electric current flowing between the electrodes; h) exposing the green bodies to a pressure force acting between the electrodes; i) sintering the green bodies to form thermolegs; and k) levelling the substrate and the thermolegs accommodated therein by bringing them closer to the electrodes while maintaining the parallelity thereof.

Rational method for the powder metallurgical production of thermoelectric components

The present invention pertains to a process for preparing guanidino acetic acid (GAA) from cyanamide and glycine in alkaline process solution, in which anionic impurities are removed from the process solution by electrodialysis.

Process for preparing guanidino acetic acid

A process is used for preparing methionine. Specifically, the process includes the hydrolysis of 5-(2-methylmercaptoethyl)hydantoin (methionine hydantoin) in an alkaline process solution. Further, the by-products that include formate and other anions of organic acids containing 1 to 5 carbon atoms are removed by electrodialysis of the process solution.

Process for preparing methionine

The present invention relates to a liquid-phase process for producing structured silicon- and/or germanium-containing coatings by the application to a substrate of at least one coating composition, the partial activation of the resulting coating on the coated substrate, and oxidation of non-activated coating on the substrate, to the coats produced by the process and to their use.

Process for producing structured coatings

The invention relates to a method for producing a thermoelectric component or at least one semi-finished product of same, in which a multiplicity of thermolegs made of a thermoelectrically active material are introduced into an essentially planar substrate made of an electrically and thermally insulating substrate material such that the thermolegs extend through the substrate essentially perpendicular to the substrate plane, and in which the active material is provided in pulverulent form, is pressed to give green bodies and is then sintered within the substrate to give thermolegs. It is based on the object of refining the method of the generic type mentioned in the introduction so as to increase the freedom of choice of the thermally and electrically insulating substrate material. The object is achieved in that the pulverulent active material is pressed, in a mould arranged outside the substrate, to give green bodies, the green bodies are pushed out of the mould and into holes provided in the substrate, where they are sintered to give thermolegs.

Method for producing thermoelectric components by powder metallurgy

The invention relates to a method for producing a thermoelectric component or at least a semifinished version thereof, in which at least one thermoelectric active material in dry powder form is introduced into at least some of the holes of a perforated template. It addresses the problem of specifying a method which can be conducted in a particularly economically viable manner. The problem is solved by virtue of the active material remaining in the holes of the template, and the template filled with active material becoming a constituent of the thermoelectric component produced.

Powder metallurgical production of a thermoelectric component

The present invention relates to storage-stable product systems having high latency and good mechanical stability, which are suitable, inter alia, for premix formulations. Furthermore, the present invention relates to a method for producing the formulations according to the invention and the use thereof.

Storage-stable product systems for premix formulations

Process for the phase transformation of substances and mixtures of substances, in which the substance or the mixture of substances is introduced into a plasma reactor, the substance or the mixture of substances is converted into the higher-energy phase and the product is removed in gaseous form from the plasma reactor. The process can be used for the sublimation of metal salts, metal nitrates and/or metal alkoxides and other vaporizable metal-organic compounds.

Process for the phase transformation of substances

A process for the electrochemical preparation of hydrogen peroxide, in particular an aqueous hydrogen peroxide solution, by the electrochemical reaction of oxygen and hydrogen in a fuel cell. By increasing the thickness of the membrane layer in a membrane electrode unit (MEU) in the fuel cell, it is possible to substantially increase the concentration of H O in the aqueous hydrogen peroxide solution obtained at the cathode.

Process for the electrochemical preparation of hydrogen peroxide

The invention relates to a process for the production of a peroxodisulfate, such as ammonium-, sodium- and potassium peroxodisulfate by anodic oxidation of an electrolyte containing a sulfate and/or hydrogen sulfate. The disadvantages of the conventional platinum anodes used for this hitherto can be avoided by using as the anode a diamond film mounted on a conductive carrier and made conductive by doping with a tri- or pentavalent element and by not adding a promoter to the anolyte.

Process for the production of alkali metal- and ammonium peroxodisulfate

An electrolysis cell for carrying out chemical reactions include an electrolyte chamber (,) with a fixed-bed electrode (,F), a gas chamber (,) filled with filling bodies (,F), a gas diffusion electrode with an ion-exchanging separator (,) applied on the electrolyte-chamber side. The ion-exchanging separator is applied onto the gas diffusion electrode by a method comprising a single or multiple application of a solution of an ion-exchanging material in a solvent onto the electrocatalytically active layer of the gas diffusion electrode and at least partial evaporation of the solvent after each coating. The electrolysis cell may be used for the oxidation and reduction of organic or inorganic components dissolved in the electrolyte.

Electrolysis cell

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Hanau, Germany

Patrik Stenner