CEA
CNRS
Univ. Paris-Saclay

Service de Physique de l'Etat Condensé

Projet ANR OERKOP
Oxygen evolution reaction: the key to optimize photocatalytic water oxidation (01/04/2023 - 31/03/2027)
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OERKOP aims to understand and describe the mechanisms underlying the OER for co-catalyst modified hematite photoanodes, by using a correlative operando characterization approach at the nanoscale. OERKOP proposes a comparative study between two archetypal materials used as photoanodes: α-Fe2O3 and BiVO4, both catalytically activated by oxyhydroxide catalysts (M-OOH, with M = Fe, Ni, Co, Cu, Zn). Surface kinetics and time stability during the oxidation will be systematically evaluated. We intend combining multi-scale and multi-selective techniques - scanning transmission X-ray microscopy (STXM) and scanning transmission electron microscopy (STEM). Both techniques will employ a common sample environment in a dedicated photoelectrochemical cell. Complementary DFT calculations will allow dissecting complex effects and determining the reaction priorities of different photocatalytic sites.

 

CONSORTIUM:

SPEC
CEA, CNRS
Univ. Paris-Saclay
Synchrotron SOLEIL
 
IPCMS 
Univ. de Strasbourg
CNRS
Karine CHAOUCHI (Laboratoire de chimie)
Stephanie BLANCHANDIN (Laboratoire de chimie)

 

 

Préliminary works and results:

Results dissemination during OERKOP:

 
Oral and poster presentations
 
Scientific preprints and peer-review articles
 
Internship reports and PhD thesis
 
 

MEETINGS:

1) Kick-off meeting

Date: 20th of April @SPEC

Agenda....

 
#3546 - Màj : 25/05/2023

 

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