<div class="csl-bib-body">
<div class="csl-entry">Tobisch, S., Ziegler, A., Knapp Marco, Schmid, M., Diebold, U., Meyer, B., & Wagner, M. (2025, March 18). <i>Complex structural arrangements at the CO₂/In₂O₂(111) interface</i> [Presentation]. DPG-Frühjahrstagung/DPG Spring Meeting of the Condensed Matter Section, Regensburg, Germany. http://hdl.handle.net/20.500.12708/213956</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/213956
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dc.description.abstract
Promising catalysts for the hydrogenation of CO2 to methanol are highly desired to address the pressing issue of rising carbon emissions. Since reactions take place at the interface, understanding the fundamental properties and behavior of molecular species on well-defined surfaces is crucial for designing model catalysts.
In2O3 has gained attention as catalytic material due to its high selectivity for methanol synthesis via CO2 reduction. In this work, the adsorption and interaction of CO2 molecules on In2O3(111) were investigated in detail at the atomic scale and under UHV conditions. We employ non-contact atomic force microscopy (AFM) and compared our findings with results from temperature programmed desorption (TPD) and x-ray photoelectron spectroscopy (XPS) measurements, as well as density functional theory (DFT) calculations. AFM images of the In2O3(111) surface show 10 molecular features per surface unit cell arranged in a systematic and uniform order, albeit breaking the threefold symmetry of the substrate surface. The adsorption sites of all individual molecules were identified; some of them are carbonate species, in agreement to XPS showing a mixture of CO2 molecules and CO32−. Moreover, the desorption and structural evolution with increasing temperature was studied.
en
dc.language.iso
en
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dc.subject
Surface Physics
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dc.subject
CO2 reduction
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dc.subject
TPD
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dc.subject
AFM
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dc.subject
indium oxide
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dc.title
Complex structural arrangements at the CO₂/In₂O₂(111) interface
