公开(公告)号：EP3670700A1

公开(公告)日：2020-06-24

申请号：EP18306750.3

申请日：2018-12-19

申请人： Paris Sciences et Lettres - Quartier Latin ,  College de France

发明人： FONTECAVE, Marc ,  MOUGEL, Victor ,  TRAN NGOC, Huan ,  WAKERLEY, David ,  LAMAISON, Sarah

IPC分类号： C25B1/00 ,  C25B1/04 ,  C25B11/04 ,  C25D3/02

摘要： The present invention relates to a method for CO 2 electroreduction to syngas, a mixture of carbon monoxide (CO) and hydrogen (H 2 ), using a cathode comprising an electrically conductive support of which at least a part of the surface is covered by a metal deposit of zinc and of a second metal selected from copper, silver, gold and mixtures thereof, and being preferably copper, said metal deposit comprising at least 1 wt% of one or several phases of an alloy of zinc and of the second metal.
The present invention relates also to an electrode useful for performing this method, a process for preparing such an electrode and an electrolysis device comprising such an electrode.

公开(公告)号：EP3656892A1

公开(公告)日：2020-05-27

申请号：EP18306541.6

申请日：2018-11-21

申请人： Paris Sciences et Lettres - Quartier Latin ,  Centre National de la Recherche Scientifique - CNRS ,  SORBONNE UNIVERSITE ,  College de France

发明人： FONTECAVE, Marc ,  MOUGEL, Victor ,  TRAN NGOC, Huan ,  ALVES DALLA CORTE, Daniel ,  LAMAISON, Sarah ,  LUTZ, Lukas

IPC分类号： C25B3/04 ,  C25B1/04 ,  C25B11/03 ,  C25B11/04 ,  C25B9/06 ,  C25D3/38 ,  C25D5/50 ,  C25D11/34

摘要： The present invention relates to an electrolysis device comprising an anode and a cathode, wherein the anode and the cathode each are an electrode comprising an electrically conductive support of which at least a part of the surface is covered by a metal deposit of copper, wherein the surface of the metal deposit is in an oxidized, sulfurated, selenated and/or tellurized form and the metal deposit has a specific surface area greater than or equal to 1 m 2 /g.
The present invention relates also to a method for reducing CO 2 into hydrocarbons using an electrolysis device according to the invention. The method according to the invention comprises:
a) providing an electrolysis device according to the invention;
b) exposing the cathode of said electrolysis device to a CO 2 -containing aqueous catholyte solution;
c) exposing the anode of said electrolysis device to an aqueous anolyte solution; and
d) applying an electrical current between the anode and the cathode in order to reduce the carbon dioxide into hydrocarbons.