Metal chalcogenide thin film electrode, method for the production thereof and use

The invention relates to a method for producing a metal chalcogenide thin film electrode, comprising the steps: (a) contacting a metal or metal oxide with an elementary halogen in a non-aqueous solvent, producing a metal halide compound in the solution, (b) applying a negative electric voltage to an electrically conducting or semiconducting substrate which is in contact with the solution from step (a), and (c) during and/or after step (b) contacting the substrate with an elementary chalcogen forming a metal chalcogenide layer on the substrate. The invention also relates to a metal chalcogenide thin film electrode which can be produced by the method and its use as an anode for releasing oxygen during (photo)electrochemical water splitting.

ELECTRODE FOR PHOTOELECTRIC CATALYSIS, SOLAR CELL, AND METHOD FOR PRODUCING SAID ELECTRODE

The invention relates to an electrode () for photoelectric catalysis, comprising a supporting layer () on which a catalytic layer () is arranged, which comprises particles () from a first semiconductor material, and a method for the production of said electrode and a solar cell with said electrode. 110. An electrode () for photoelectric catalysis , comprising a supporting layer on which a catalytic layer is arranged , which comprises particles from a first semiconductor material , characterized in that the catalytic layer further features a matrix from an amorphous material which at least partially surrounds the particles.2. The electrode for photoelectric catalysis according to claim 1 , characterized in that at least 90% of the particles feature a deviation from an average particle diameter of maximum 20% claim 1 , in particular of maximum 10%.3. The electrode for photoelectric catalysis according to claim 1 , characterized in that the semiconductor materials feature free charge carriers claim 1 , wherein the type of charge carriers that represent a majority in the matrix material corresponds to the type of charge carrier that form in the particles as a result of the illumination.4. The electrode for photoelectric catalysis according to claim 1 , characterized in that the catalytic layer is formed as a multilayer system.5. The electrode for photoelectric catalysis according to claim 1 , characterized in that the electrode is a photoelectrochemical or a photovoltaic electrode.6. The electrode for photoelectric catalysis according to claim 1 , characterized in that an ion conductor claim 1 , in other words claim 1 , an electrolyte or an electron conductor claim 1 , is arranged on the electrode.7. A solar cell featuring an electrode for photoelectric catalysis according to and an ion conductor claim 1 , in other words an electrolyte or an electron conductor.8. The solar cell according to claim 1 , characterized in that the solar cell further comprises an in ...

CATALYST FOR THE HYDROFORMYLATION OF OLEFINS, AND USE THEREOF

A catalyst for the hydroformylation of at least one olefin, having a ligand fo the general formula (1)—RR, Rselected from the group including substituted and non-substituted alkyl, substituted and non-substituted aryl, substituted and non-substituted alkenyl, substituted and non-substituted alkinyl, substituted and non-substituted cycloalkyl, and substituted and non-substituted heterocycles, wherein R, Rand Rcan each be the same or different, L is selected from a group having a sandwich complex, an oxygen group, substituted and non-substituted alkylene or heterocycles, and substituted aryl or heteroaryl; and aryl and heteroaryl is each substituted with groups which contain at least two heteroatoms and are coupled to the Si via the at least two heteroatoms of the substituents, −n=1-10, preferably 1-5, particularly preferably 1, 2, or 3; and the ligand is coupled to the metal M from the group VIIIb of the periodic table of elements via the Si group. 2. The catalyst as claimed in claim 1 , wherein M is Co or Rh.3. The catalyst as claimed in claim 1 , wherein L is present as a sandwich complex in the form of a metallocene complex claim 1 , in particular ferrocene.4. The catalyst as claimed in claim 1 , wherein L is present in the form of a phenyl or pyridine ring claim 1 , wherein the phenyl or pyridine ring respectively are substituted with groups comprising at least two heteroatoms claim 1 , preferably oxygen or nitrogen.5. The catalyst as claimed in claim 1 , wherein R1 claim 1 , R2 claim 1 , and R3 are selected from a group comprising substituted and unsubstituted C1-C12 alkyl claim 1 , substituted and unsubstituted phenyl claim 1 , substituted and unsubstituted C5-C6 heteroaryl claim 1 , substituted and unsubstituted naphthyl claim 1 , substituted and unsubstituted C3-C10 cycloalkyl claim 1 , substituted and unsubstituted C7-C18 alkylphenyl claim 1 , substituted and unsubstituted C5-C7 cycloalkenyl claim 1 , substituted and unsubstituted C2-C7 heteroalkylene.6. The ...

Use of keplerate type polyoxymolybdates for decontaiminating aquatic environments

Use of Keplerate type polyoxomolybdates of the general structure Mo72M30, wherein M is selected from the group consisting of Fe, Cr, V or Mo2, for decontaminating aqueous media (water) from inorganic and organic pollutants

Formulations comprising a mixture of ZnO cubanes and process using them to produce semiconductive ZnO layers

The present invention relates to formulations comprising a) at least two different ZnO cubanes of which at least one ZnO cubane is present in solid form under SATP conditions and at least one ZnO cubane is present in liquid form under SATP conditions, and b) at least one solvent, to processes for producing semiconductive ZnO layers from these formulations, to the use of the formulations for producing electronic components and to the electronic components themselves.

Catalyst for the hydroformylation of olefins, and use thereof

Metallchalkogenid-dünnschichtelektrode, verfahren zu ihrer herstellung und verwendung

Die Erfindung betrifft ein Verfahren zur Herstellung einer Metallchalkogenid-Dünnschichtelektrode, umfassend die Schritte: (a) Inkontaktbringen eines Metalls oder Metalloxids mit einem elementaren Halogen in einem nicht-wässrigen Lösungsmittel unter Erzeugung einer Metallhalogenidverbindung in der Lösung, (b) Anlegen einer negativen elektrischen Spannung an einem elektrisch leitenden oder halbleitenden Substrat, das in Kontakt mit der Lösung aus Schritt (a) steht, und (c) während und/oder nach Schritt (b) Inkontaktbringen des Substrats mit einem elementaren Chalkogen unter Ausbildung einer Metallchalkogenidschicht auf dem Substrat. Die Erfindung betrifft weiterhin eine mit dem Verfahren herstellbare Metallchalkogenid-Dünnschichtelektrode sowie ihre Verwendung als Anode zur Sauerstofffreisetzung bei der (photo)elektrochemischen Wasserspaltung.

Metallchalkogenid-dünnschichtelektrode, verfahren zu ihrer herstellung und verwendung

Die Erfindung betrifft ein Verfahren zur Herstellung einer Metallchalkogenid-Dünnschichtelektrode, umfassend die Schritte: (a) Inkontaktbringen eines Metalls oder Metalloxids mit einem elementaren Halogen in einem nicht-wässrigen Lösungsmittel unter Erzeugung einer Metallhalogenidverbindung in der Lösung, (b) Anlegen einer negativen elektrischen Spannung an einem elektrisch leitenden oder halbleitenden Substrat, das in Kontakt mit der Lösung aus Schritt (a) steht, und (c) während und/oder nach Schritt (b) Inkontaktbringen des Substrats mit einem elementaren Chalkogen unter Ausbildung einer Metallchalkogenidschicht auf dem Substrat. Die Erfindung betrifft weiterhin eine mit dem Verfahren herstellbare Metallchalkogenid-Dünnschichtelektrode sowie ihre Verwendung als Anode zur Sauerstofffreisetzung bei der (photo)elektrochemischen Wasserspaltung.

Use of keplerate type polyoxymolybdates for decontaminating aquatic environments

Use of Keplerate type polyoxomolybdates of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , for decontaminating aqueous media (water) from inorganic and organic pollutants

Use of keplerate type polyoxymolybdates for decontaminating aquatic environments

Use of Keplerate type polyoxomolybdates of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , for decontaminating aqueous media (water) from inorganic and organic pollutants