公开(公告)号：US20190226105A1

公开(公告)日：2019-07-25

申请号：US16333696

申请日：2017-08-24

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Helmut Eckert ,  Ralf Krause ,  Christian Reller ,  Bernhard Schmid ,  Günter Schmid ,  Dan Taroata

IPC: C25B15/08 ,  C25B11/03 ,  C25B9/18 ,  C25B1/10 ,  C25B1/46 ,  C25B3/04

Abstract: Various embodiments include a method for continuous operation of an electrolysis cell with a gaseous substrate, the method comprising: supplying an electrolyte to the electrolysis cell via an electrolyte feed; flowing the electrolyte out of the electrolysis cell into the gas space through a gas diffusion electrode; collecting the electrolyte from the electrolyte flow into the gas space in a collecting region in the gas space; and sucking the collected electrolyte out of said gas space via a connection between the gas space and electrolyte feed.

公开(公告)号：US20210207277A1

公开(公告)日：2021-07-08

申请号：US17251787

申请日：2019-05-16

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Kalmar Hansen ,  Christian Reller ,  Kasper Tipsmark Therkildsen

IPC: C25B11/032 ,  C25B11/081 ,  C25B3/26 ,  C25B3/03 ,  C25B3/07 ,  C25B1/23

Abstract: A gas diffusion electrode for carbon dioxide treatment includes a metal substrate and an electrically conductive catalyst layer which is applied thereto and has hydrophilic pores and/or channels and hydrophobic pores and/or channels, the catalyst layer including metal particles which are coated at least in regions with a polymeric binder material. A method produces a gas diffusion electrode for CO2 treatment, and an electrolysis cell has a corresponding gas diffusion electrode.

公开(公告)号：US20210207276A1

公开(公告)日：2021-07-08

申请号：US17251785

申请日：2019-06-05

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Kalmar Hansen ,  Christian Reller ,  Kasper Tipsmark Therkildsen

IPC: C25B11/032 ,  C25B11/095 ,  C25B1/00 ,  C25B11/061 ,  C25B11/075

Abstract: A gas diffusion electrode for carbon dioxide utilization, including a metal substrate and an electrically conductive catalyst layer, which is applied to the metal substrate and has hydrophilic pores and/or channels and hydrophobic pores and/or channels, wherein the catalyst layer includes metal particles and a first polymeric binding material; and a porous gas diffusion layer containing the first polymeric binding material is formed on the surface of the catalyst layer. A method produces a gas diffusion electrode for CO2 utilization and an electrolytic cell has a corresponding gas diffusion electrode.

公开(公告)号：US20210079538A1

公开(公告)日：2021-03-18

申请号：US16629728

申请日：2018-06-14

Applicant: Siemens Aktiengesellschaft

Inventor： Bernhard Schmid ,  Christian Reller ,  Günter Schmid

IPC: C25B9/10 ,  C25B9/02 ,  C25B1/00

Abstract: Various embodiments include an electrolysis cell comprising: a cathode space housing a cathode for the reduction of CO2; a first ion exchange membrane including an anion exchanger and/or an anion transporter, the first ion exchange membrane adjoining the cathode space and in direct contact with the cathode; an anode space housing an anode; a first separator membrane; and a salt bridge space housing an electrolyte disposed between the first ion exchange membrane and the first separator membrane. The electrolyte in the salt bridge space comprises a liquid acid and/or a solution of an acid.

公开(公告)号：US20210002776A1

公开(公告)日：2021-01-07

申请号：US16980954

申请日：2019-03-08

Applicant: Siemens Aktiengesellschaft

Inventor： Harald Landes ,  Christian Reller

IPC: C25B11/03 ,  C25B9/06 ,  C25B1/00 ,  C25B11/04

Abstract: A gas diffusion electrode having at least two layers, of which a first layer has an electrically conductive fabric, which is embedded at least in part in a hydrophobically acting polymer matrix, and a second layer has an open porosity which has catalytically acting particles and has a thickness between 1 μm and 50 μm.

公开(公告)号：US11198942B2

公开(公告)日：2021-12-14

申请号：US15548618

申请日：2015-12-23

Applicant: Siemens Aktiengesellschaft

Inventor： Ralf Krause ,  Christian Reller ,  Guenter Schmid ,  Elena Volkova

IPC: C25B3/25 ,  C25B15/08 ,  C25B1/00 ,  C01B32/50 ,  B01J29/10 ,  C07C47/04 ,  C07C1/207

Abstract: The present disclosure relates to electrolysis systems and methods. The teachings thereof may be embodied in methods and systems for the utilization of carbon dioxide and production of carbon monoxide. For example, a method may include: passing an electrolyte and carbon dioxide in front of a cathode through a cathode chamber; and removing electrolysis byproducts from an electrolyte/electrolysis product mixture using a catalytic filter system. The cathode may include material to reduce carbon dioxide. The process may generate a hydrocarbon compound or carbon monoxide as the electrolysis product and a formate as an electrolysis byproduct. The filter system may include a functionalized complex or a functionalized support material which catalyzes a cleavage reaction of formates (a) to hydrogen and carbon dioxide, or (b) to water and carbon monoxide.

公开(公告)号：US20210189572A1

公开(公告)日：2021-06-24

申请号：US16755000

申请日：2018-09-21

Applicant: Siemens Aktiengesellschaft

Inventor： Bernhard Schmid ,  Christian Reller ,  Günter Schmid

IPC: C25B1/26 ,  C01B32/40 ,  C01B32/80 ,  C01B7/04 ,  C01B32/50 ,  C25B9/19 ,  C25B15/08

Abstract: A method for producing phosgene directly from the directly combined raw products, preferably only dried raw products, of a combined CO2 chloride electrolysis. A first gaseous product of CO is produced from CO2 on the cathode side in at least one electrolysis cell for a CO2 conversion into CO, and a second gaseous product of at least Cl2 is produced from HCl and/or a metal chloride on the anode side, wherein phosgene is produced from the gaseous products.

公开(公告)号：US20210172079A1

公开(公告)日：2021-06-10

申请号：US16763144

申请日：2018-11-16

Applicant: Siemens Aktiengesellschaft

Inventor： Nemanja Martic ,  Christian Reller ,  Günter Schmid ,  Bernhard Schmid ,  David Reinisch

IPC: C25B11/093 ,  C25B3/25 ,  C25B11/054 ,  C25B11/065 ,  C25B13/00 ,  C25B9/23 ,  C25B11/032

Abstract: An electrode, which includes at least one tetragonally crystallized compound containing at least one element selected from the group of Cu and Ag, the crystal lattice of the compound being of the space group I41/amd type. An electrolysis cell includes the electrode.

公开(公告)号：US20200208280A1

公开(公告)日：2020-07-02

申请号：US16614989

申请日：2018-04-18

Applicant: Siemens Aktiengesellschaft

Inventor： Ralf Krause ,  Christian Reller ,  Bernhard Schmid ,  Günter Schmid

IPC: C25B11/04 ,  B01J37/00 ,  B01J37/04 ,  B01J37/06 ,  B01J6/00 ,  C25B9/08 ,  B01J23/78 ,  B01J23/50

Abstract: Various embodiments include a method for producing a gas diffusion electrode comprising a metal M selected from Ag, Au, Cu and mixtures and/or alloys, the method comprising: providing a copper-, silver- and/or gold-containing starting material comprising at least one alkaline earth metal-copper, alkaline earth metal-silver and/or alkaline earth metal-gold phase, where the alkaline earth metal is selected from the group consisting of: Mg, Ca, Sr, and Ba; introducing the starting material into a solution having a pH of less than 5 and reacting to give a catalyst material; removing and washing the catalyst material; and processing the catalyst material to form a gas diffusion electrode.

公开(公告)号：US20190276941A1

公开(公告)日：2019-09-12

申请号：US16334132

申请日：2017-08-16

Applicant: Siemens Aktiengesellschaft

Inventor： Bernhard Schmid ,  Günter Schmid ,  Christian Reller

IPC: C25B3/04 ,  C25B11/03

Abstract: Various embodiments include a method for the partial electrochemical hydrogenation of alkynes of the chemical formula (I) to alkenes, wherein R and R′ are selected from inorganic and/or organic radicals, the method comprising: hydrogenating the compound of the chemical formula (I) on a copper-containing electrode.