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  <doc>
    <id>54711</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2103328</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>12</volume>
    <type>article</type>
    <publisherName>Wiley-VCH GmbH</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Determining Structure-Activity Relationships in Oxide Derived CuSn Catalysts During CO2 Electroreduction Using X-Ray Spectroscopy</title>
    <abstract language="eng">The development of earth-abundant catalysts for selective electrochemical CO2 conversion is a central challenge. Cu-Sn bimetallic catalysts can yield selective CO2 reduction toward either CO or formate. This study presents oxide-derived Cu-Sn catalysts tunable for either product and seeks to understand the synergetic effects between Cu and Sn causing these selectivity trends. The materials undergo significant transformations under CO2 reduction conditions, and their dynamic bulk and surface structures are revealed by correlating observations from multiple methods—X-ray absorption spectroscopy for in situ study, and quasi in situ X-ray photoelectron spectroscopy for surface sensitivity. For both types of catalysts, Cu transforms to metallic Cu0 under reaction conditions. However, the Sn speciation and content differ significantly between the catalyst types: the CO-selective catalysts exhibit a surface Sn content of 13 at. % predominantly present as oxidized Sn, while the formate-selective catalysts display an Sn content of ≈70 at. % consisting of both metallic Sn0 and Sn oxide species. Density functional theory simulations suggest that Snδ+ sites weaken CO adsorption, thereby enhancing CO selectivity, while Sn0 sites hinder H adsorption and promote formate production. This study reveals the complex dependence of catalyst structure, composition, and speciation with electrochemical bias in bimetallic Cu catalysts.</abstract>
    <parentTitle language="eng">Advanced Energy Materials</parentTitle>
    <identifier type="doi">10.1002/aenm.202103328</identifier>
    <identifier type="issn">1614-6832</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-547116</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">28.04.2022</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>L. C. Pardo Pérez</author>
    <author>A. Arndt</author>
    <author>S. Stojkovikj</author>
    <author>I. Y. Ahmet</author>
    <author>J. T. Arens,</author>
    <author>F. Dattila</author>
    <author>R. Wendt</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Martin Radtke</author>
    <author>V. Davies</author>
    <author>K. Höflich</author>
    <author>E. Köhnen</author>
    <author>P. Tockhorn</author>
    <author>R. Golnak</author>
    <author>J. Xiao</author>
    <author>G. Schuck</author>
    <author>M. Wollgarten</author>
    <author>N. López</author>
    <author>M. T. Mayer</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrochemical CO2 conversion</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cu catalysts</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray absorption spectroscopy</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.3 Strukturanalytik</collection>
    <collection role="themenfelder" number="">Energie</collection>
    <collection role="themenfelder" number="">Elektrische Energiespeicher und -umwandlung</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/54711/Advanced Energy Materials - 2021 - Pardo Perez et al.pdf</file>
  </doc>
  <doc>
    <id>59326</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace>New York, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Infrared Attenuate Total Reflection Cell with a Functionalized Surface</title>
    <abstract language="eng">ATR cell utilizing chips from silicon wafers is discussed. The cell can be used for wet-chemical analysis on functionalized surfaces. Here, silicon chips are exemplarily "functionalized" by silica layers to provide a hydrophilic or hydrophobic ATR surface in-situ.</abstract>
    <parentTitle language="eng">Proceedings of the 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</parentTitle>
    <identifier type="doi">10.1109/IRMMW-THz57677.2023.10298918</identifier>
    <enrichment key="eventStart">17.09.2023</enrichment>
    <enrichment key="eventEnd">22.09.2023</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="eventName">48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</enrichment>
    <enrichment key="eventPlace">Montreal, Quebec, Canada</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="date_peer_review">11.01.2024</enrichment>
    <author>U. Schade</author>
    <author>L. Puskar</author>
    <author>R. Golnak</author>
    <author>A. Veber</author>
    <author>Jörg Beckmann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>THz radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ATR</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>FTIR</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.5 Röntgenbildgebung</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
</export-example>
