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  <doc>
    <id>3116</id>
    <completedYear>2025</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>116803</pageFirst>
    <pageLast>116816</pageLast>
    <pageNumber/>
    <edition/>
    <issue>422/4</issue>
    <volume/>
    <type>bookpart</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>New York</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2025-10-31</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">\(Ca_{1-x} Sr_x MnO_{3-\delta}\) granules, pellets, foams: Influence of fabrication conditions and microstructure on oxidation kinetics</title>
    <abstract language="eng">Microstructure and oxidation kinetics are closely intertwined factors that significantly influence the behavior of materials in oxidative environments. This relationship is of particular importance for redox materials such as &#13;
\(Ca_{1-x} Sr_x MnO_{3-\delta}\), where reversible oxygen ions exchange and oxidation state shifts are key to their functionality. In the first study, scanning electron microscope (SEM) was used to examine how varying Sr content affects the morphology and microstructure of \(Ca_{1-x} Sr_x MnO_{3-\delta}\)  powder compositions. The results indicate that increasing Sr content leads to smaller particle sizes and improved particle size homogeneity. Granules with Sr concentrations ranging from 0 % to 40 % exhibit notable changes in morphology. However, the microporosity and d50 vary slightly across the samples in a non-monotonic manner, with no clear trend emerging with respect to Sr concentration. The second study investigates how macrostructural forms, such as foams and pellets, impact oxidation kinetics in  \(Ca_{0.8} Sr_{0.2} MnO_{3-\delta}\). Parameters including particle size distribution of the raw material, overall microporosity, and structural characteristics of these macrostructures were analyzed for their effect on oxidation rates. Findings reveal that macrostructural configuration, alongside microstructural features like microporosity, significantly impacts oxidation kinetics. These studies collectively underscore the critical relationship between dopant concentration, microstructural characteristics, and structural morphology in determining the oxidative behavior of &#13;
\(Ca_{1-x} Sr_x MnO_{3-\delta}\), providing key insights into optimizing material performance in redox environments.</abstract>
    <parentTitle language="eng">Solid State Ionics</parentTitle>
    <identifier type="doi">10.1016/j.ssi.2025.116803</identifier>
    <enrichment key="RS_Correlation">Ja</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Lena Klaas</author>
    <author>Asmaa Eltayeb</author>
    <author>Dorottya Kriechbaumer</author>
    <author>Martin Roeb</author>
    <author>Christian Sattler</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Oxidation kinetics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thermochemical cycles</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Perovskites</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Oxidation kinetics</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Thermochemistry</value>
    </subject>
    <collection role="ddc" number="54">Chemie</collection>
    <collection role="institutes" number="">Fakultät für Chemische Technologie und Wirtschaft</collection>
    <thesisPublisher>Technische Hochschule Rosenheim</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-rosenheim/files/3116/1-s2.0-S0167273825000220-main.pdf</file>
  </doc>
  <doc>
    <id>3117</id>
    <completedYear>2025</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>278</pageFirst>
    <pageLast>287</pageLast>
    <pageNumber/>
    <edition>2.</edition>
    <issue>Vol. 6</issue>
    <volume/>
    <type>bookpart</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>New York</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2025-10-31</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fuels – Hydrogen – Hydrogen Production | Thermochemical</title>
    <abstract language="eng">Green hydrogen is expected to play a major role in the energy mix of the future as it is not only an important feedstock for chemical production but also an energy carrier and fuel. For the transition from fossil routes to green production new, sustainable technologies are needed. Solar thermal energy can be directly utilized for hydrogen production without electrification via thermochemical cycles. Several thousands of cycles have already been investigated, the main types utilize redox materials with phase change properties, materials with non-stoichiometric behavior and sulfur-based cycles. This article gives an overview on the different classes of thermochemical cycles, their state of development, economics and their possibilities for a future industrial application.</abstract>
    <parentTitle language="eng">Encyclopedia of Electrochemical Power Sources (Second Edition)</parentTitle>
    <identifier type="doi">10.1016/B978-0-323-96022-9.00006-2</identifier>
    <enrichment key="RS_Correlation">Ja</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Dorottya Kriechbaumer</author>
    <author>Vishnu Budama</author>
    <author>Martin Roeb</author>
    <author>Christian Sattler</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hydogen Production</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thermochemical cycles</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Wasserstoffgewinnung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Thermochemisches Verfahren</value>
    </subject>
    <collection role="ddc" number="54">Chemie</collection>
    <collection role="institutes" number="">Fakultät für Chemische Technologie und Wirtschaft</collection>
    <thesisPublisher>Technische Hochschule Rosenheim</thesisPublisher>
  </doc>
</export-example>
