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@INPROCEEDINGS{Park:1020352,
author = {Park, Inhee and Henke, Kira and Weinrich, Hennng and de
Haart, L. G. J. and Tempel, Hermann and Eichel, Rüdiger-A.
and Hausen, Florian},
title = {{C}haracterization of {E}lectro- and {P}hoto-catalytic
materials by {S}canning {E}lectrochemical {M}icroscopy and
{S}canning {T}unneling {S}pectroscopy},
reportid = {FZJ-2024-00085},
year = {2023},
abstract = {The electrochemical reduction of carbon dioxide (CO2RR) has
gained tremendous attention in the past years as a possible
route to produce valuable chemicals and replacing fossil
fuels. In order to steer the selectivity of the final
products, a proper catalytic material should be chosen and
the electrochemical conditions such as electrolyte’s
buffer capacity and local pH should be controlled 1-3.
Furthermore, the photocatalytic materials can convert the
solar energy to the chemical fuels through CO2RR and water
splitting. Therefore, the understanding of processes at the
micro- and nanometer scale during electrochemical reaction
at the catalysts is of utmost importance and key to improve
the reaction efficiency.It has been shown by M. Koper’s
group that Scanning Electrochemical Microscopy (SECM) can
contribute to understanding the shift of local pH during
CO2RR 1, 4. Referring it, we present a SECM study of the
interface between different materials to investigate the
local selectivity. In addition to it, taking BiVO4 5, as an
example of photo-catalysts, we investigate the density of
states using Scanning Tunneling Spectroscopy (STS) depending
on the preparation method of BiVO4 films, which gives us a
hint for the critical factors related to the efficiency such
as defects and dominant phases.},
month = {Sep},
date = {2023-09-03},
organization = {74th annual ISE Meeting, Lyon
(France), 3 Sep 2023 - 8 Sep 2023},
subtyp = {After Call},
cin = {IEK-9},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {1223 - Batteries in Application (POF4-122) / iNEW2.0
(BMBF-03SF0627A)},
pid = {G:(DE-HGF)POF4-1223 / G:(DE-Juel1)BMBF-03SF0627A},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/1020352},
}