Global Patent Index - EP 3642391 B1

EP 3642391 B1 20230802 - METHOD, USE AND ELECTROLYSIS CELL COMPRISING GAS DIFFUSION ELECTRODE FOR REDUCING CARBON DIOXIDE

Title (en)

METHOD, USE AND ELECTROLYSIS CELL COMPRISING GAS DIFFUSION ELECTRODE FOR REDUCING CARBON DIOXIDE

Title (de)

VERFAHREN, VERWENDUNG UND ELEKTROLYSEZELLE MIT GASDIFFUSIONSELEKTRODE ZUR REDUKTION VON KOHLENDIOXID

Title (fr)

PROCÉDÉ, UTILISATION ET CELLULE ÉLECTROLYTIQUE DOTÉE D'UNE ÉLECTRODE À DIFFUSION DE GAZ DESTINÉE À RÉDUIRE L'OXYDE D'AZOTE

Publication

EP 3642391 B1 20230802 (DE)

Application

EP 18735210 A 20180619

Priority

  • EP 17177031 A 20170621
  • EP 2018066293 W 20180619

Abstract (en)

[origin: WO2018234322A1] The invention relates to a gas diffusion electrode for reducing carbon dioxide, having a special catalyst morphology (silver in the form of agglomerated nanoparticles having a BET surface area of at least 2 m2/g), and to an electrolysis device. The gas diffusion electrode comprises at least one carrier and a porous coating on the basis of an electrochemically active porous silver catalyst and a hydrophobic material. The invention further relates to a production method for the gas diffusion electrode and to the use thereof as a carbon dioxide GDE in e.g. chlorine electrolysis.

IPC 8 full level

C25B 1/23 (2021.01); C25B 11/032 (2021.01); C25B 11/081 (2021.01)

CPC (source: EP KR US)

C25B 1/23 (2021.01 - EP KR US); C25B 11/031 (2021.01 - KR US); C25B 11/032 (2021.01 - EP US); C25B 11/055 (2021.01 - US); C25B 11/061 (2021.01 - US); C25B 11/081 (2021.01 - EP US); C25B 11/093 (2021.01 - US); C25B 11/095 (2021.01 - KR); C25B 11/054 (2021.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3418429 A1 20181226; CN 110770370 A 20200207; CN 110770370 B 20221125; EP 3642391 A1 20200429; EP 3642391 B1 20230802; JP 2020524742 A 20200820; JP 7222933 B2 20230215; KR 20200020714 A 20200226; US 2020208283 A1 20200702; WO 2018234322 A1 20181227

DOCDB simple family (application)

EP 17177031 A 20170621; CN 201880041586 A 20180619; EP 18735210 A 20180619; EP 2018066293 W 20180619; JP 2019570373 A 20180619; KR 20197037391 A 20180619; US 201816623437 A 20180619