• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Synthesis and characterization of a Sr0.95Y0.05TiO3-δ-based hydrogen electrode for reversible solid oxide cells

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Ling, Yihan
    Chen, Luyang
    Bin, Lin
    Yu, Weili
    Isimjan, Tayirjan T.
    Zhao, Ling
    Liu, Xingqin
    KAUST Department
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2015
    Permanent link to this record
    http://hdl.handle.net/10754/563952
    
    Metadata
    Show full item record
    Abstract
    Reversible solid oxide cells (RSOCs) can generate electricity as solid oxide fuel cells (SOFC) facing a shortage of electricity and can also store the electricity as solid oxide electrolysis cells (SOEC) at the time of excessive electricity. The composite Sr0.95Y0.05TiO3-δ-Sm0.2Ce0.8O1.9 (SYT-SDC) as the hydrogen electrode provides a promising alternative for a conventional Ni/YSZ. The possible charge compensation mechanism of SYT is described as Sr0.95Y0.05Ti0.95-2δ 4+Ti2δ+0.05 3+O3-δ. The Ti3+ is approximately 11.73% in the reduced SYT by XRD Rietveld refinement, electron paramagnetic resonance (EPR) and thermogravimetry (TG) analysis. Voltage-current curves and impedance spectra are measured as a function of applied voltages to characterize the cells. The bulk resistance (Ro) and the electrode polarization resistance (Rp) at open circuit voltages (OCV) at 750 °C are 9.06 Ω cm2 and 10.57 Ω cm2, respectively. The Ro values have a small amount of changes with small slopes both in the SOFC (-0.29 Ω cm2 V-1) and SOEC mode (0.5 Ω cm2 V-1), whereas the Rp values decrease all the time with the increasing voltages at both the SOFC (-2.59 Ω cm2 V-1) and SOEC mode (-9.65 Ω cm2 V-1), indicating that the electrical conductivity and electro-catalytic property of the SYT-based hydrogen electrode can be improved under the SOEC mode. This journal is
    Sponsors
    The authors wish to thank Japan Society for the Promotion of Science (JSPS) for financial support through a Post-doctoral Fellowship for Foreign Researchers and the financial support from Chinese Natural Science Foundation on contract no. 51102107.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    RSC Adv.
    DOI
    10.1039/c4ra11973h
    ae974a485f413a2113503eed53cd6c53
    10.1039/c4ra11973h
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.