EP 3268511 A1 20180117 - ALKALINE PHOTOELECTROCHEMICAL CELL
Title (en)
ALKALINE PHOTOELECTROCHEMICAL CELL
Title (de)
ALKALISCHE PHOTOELEKTROCHEMISCHE ZELLE
Title (fr)
CÉLLULE PHOTOÉLECTRIQUE ALCALINE
Publication
Application
Priority
- DE 102015003003 A 20150310
- EP 2016054920 W 20160308
Abstract (en)
[origin: WO2016142382A1] The invention relates to a photoelectrochemical cell (PEC) for the light-driven production of hydrogen and oxygen from an aqueous medium in a basic environment. The invention further relates to the production of the photoelectrode of the photoelectrochemical cell and to a method for the light-driven production of hydrogen and oxygen by using the photoelectrochemical cell. The problem addressed by the invention is that of specifying a PEC that operates under alkaline conditions and therefore can forgo noble-metal catalysts, that achieves high light efficiency, and that is durable despite the alkaline conditions. This problem is solved by means of a photoelectrochemical cell, the photoelectrode of which has a special multi-layer layer structure, namely at least d) having a transparent adhesion-promoting layer, which is applied directly to the mentioned solar cell or a further solar cell and which is composed of one of the following metals or of an alloy of one or more of these metals: nickel, chromium, tungsten, hafnium; e) having a mirror layer, which is applied directly to the adhesion-promoting layer and which is composed of one of the following metals or of an alloy of one or more of these metals: silver, copper, aluminum; f) and having an anti-corrosion layer, which is applied directly to the mirror layer and adjoins the reaction chamber and is composed of nickel or of an alloy containing nickel.
IPC 8 full level
C25B 9/23 (2021.01); H01G 9/20 (2006.01); H01L 31/0687 (2012.01)
CPC (source: EP)
C25B 1/55 (2021.01); C25B 9/23 (2021.01); H01G 9/2045 (2013.01); Y02E 10/548 (2013.01); Y02E 60/36 (2013.01); Y02P 20/133 (2015.11)
Citation (search report)
See references of WO 2016142382A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102015003003 A1 20160915; DE 102015003003 B4 20170921; EP 3268511 A1 20180117; WO 2016142382 A1 20160915
DOCDB simple family (application)
DE 102015003003 A 20150310; EP 16708672 A 20160308; EP 2016054920 W 20160308