IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v144y2019icp123-128.html
   My bibliography  Save this article

Effect of plasma-enhanced atomic layer deposited YSZ inter-layer on cathode interface of GDC electrolyte in thin film solid oxide fuel cells

Author

Listed:
  • Lee, Sanghoon
  • Lee, Yeageun
  • Park, Joonho
  • Yu, Wonjong
  • Cho, Gu Young
  • Kim, Yusung
  • Cha, Suk Won

Abstract

We have fabricated thin film-solid oxide fuel cells (TF-SOFCs) with tri-layer electrolytes, which are composed of YSZ deposited by sputtering, YSZ deposited by plasma enhanced atomic layer deposition (PEALD), and GDC deposited by sputtering. Then, we have investigated the effects of the PEALD YSZ on the GDC layer and the whole cell. Open circuit voltages (OCVs) and peak power densities of the cells kept being enhanced as the thickness of the PEALD YSZ layer increases. The 1000 cycle of PEALD YSZ deposited TF-SOFC exhibited 214 mW/cm2 of peak power density, while TF-SOFC without PEALD YSZ inter-layer showed 124 mW/cm2, almost half of that of the 1000 cycle sample. FE-SEM images and AFM analysis of the top surface of GDC electrolytes sustain this phenomenon. As the PEALD YSZ inter-layer thickness increases, the top surface of GDC electrolyte become rough, with pin-holes disappeared, and the grain size of GDC electrolyte grew smaller. As a result, the improved quality of the electrolytes enhanced OCV and smaller grain size of the electrolytes caused better catalytic activity on the electrolyte-cathode interface, leading to lower faradaic impedances in electrochemical impedance spectroscopy (EIS).

Suggested Citation

  • Lee, Sanghoon & Lee, Yeageun & Park, Joonho & Yu, Wonjong & Cho, Gu Young & Kim, Yusung & Cha, Suk Won, 2019. "Effect of plasma-enhanced atomic layer deposited YSZ inter-layer on cathode interface of GDC electrolyte in thin film solid oxide fuel cells," Renewable Energy, Elsevier, vol. 144(C), pages 123-128.
    • Handle: RePEc:eee:renene:v:144:y:2019:i:c:p:123-128
    DOI: 10.1016/j.renene.2018.11.021
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148118313405
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2018.11.021?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Park, Taehyun & Chang, Ikwhang & Lee, Yoon Ho & Ji, Sanghoon & Cha, Suk Won, 2014. "Analysis of operational characteristics of polymer electrolyte fuel cell with expanded graphite flow-field plates via electrochemical impedance investigation," Energy, Elsevier, vol. 66(C), pages 77-81.
    2. Park, Joonho & Lee, Yeageun & Chang, Ikwhang & Cho, Gu Young & Ji, Sanghoon & Lee, Wonyoung & Cha, Suk Won, 2016. "Atomic layer deposition of yttria-stabilized zirconia thin films for enhanced reactivity and stability of solid oxide fuel cells," Energy, Elsevier, vol. 116(P1), pages 170-176.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lee, Yeageun & Park, Joonho & Yu, Wonjong & Tanveer, Waqas Hassan & Lee, Yoon Ho & Cho, Gu Young & Park, Taehyun & Zheng, Chunhua & Lee, Wonyoung & Cha, Suk Won, 2018. "Nickel-based bilayer thin-film anodes for low-temperature solid oxide fuel cells," Energy, Elsevier, vol. 161(C), pages 1133-1138.
    2. Park, Taehyun & Chang, Ikwhang & Jung, Ju Hae & Lee, Ha Beom & Ko, Seung Hwan & O'Hayre, Ryan & Yoo, Sung Jong & Cha, Suk Won, 2017. "Effect of assembly pressure on the performance of a bendable polymer electrolyte fuel cell based on a silver nanowire current collector," Energy, Elsevier, vol. 134(C), pages 412-419.
    3. Changhee Song & Sanghoon Lee & Bonhyun Gu & Ikwhang Chang & Gu Young Cho & Jong Dae Baek & Suk Won Cha, 2020. "A Study of Anode-Supported Solid Oxide Fuel Cell Modeling and Optimization Using Neural Network and Multi-Armed Bandit Algorithm," Energies, MDPI, vol. 13(7), pages 1-11, April.
    4. Cho, Gu Young & Lee, Yoon Ho & Yu, Wonjong & An, Jihwan & Cha, Suk Won, 2019. "Optimization of Y2O3 dopant concentration of yttria stabilized zirconia thin film electrolyte prepared by plasma enhanced atomic layer deposition for high performance thin film solid oxide fuel cells," Energy, Elsevier, vol. 173(C), pages 436-442.
    5. Gye-Eun Jang & Gu-Young Cho, 2022. "Effects of Ag Current Collecting Layer Fabricated by Sputter for 3D-Printed Polymer Bipolar Plate of Ultra-Light Polymer Electrolyte Membrane Fuel Cells," Sustainability, MDPI, vol. 14(5), pages 1-9, March.
    6. Iranzo, Alfredo & Boillat, Pierre, 2018. "CFD simulation of the transient gas transport in a PEM fuel cell cathode during AC impedance testing considering liquid water effects," Energy, Elsevier, vol. 158(C), pages 449-457.
    7. Kang, Yun Sik & Won, Phillip & Ko, Seung Hwan & Park, Taehyun & Yoo, Sung Jong, 2019. "Bending-durable membrane-electrode assembly using metal nanowires for bendable polymer electrolyte membrane fuel cell," Energy, Elsevier, vol. 172(C), pages 874-880.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:144:y:2019:i:c:p:123-128. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.