Bae, Kiho Jang, Dong Young Jung, Ho Jean Kim, Jun Woo Son, Ji-Won Shim, Joon Hyung 2024-01-20T10:31:03Z 2024-01-20T10:31:03Z 2021-09-05 2014-02-15 0378-7753 https://pubs.kist.re.kr/handle/201004/127087 Multi- and mono-layered thin film electrolytes based on BaCe0.9Y0.1O3-delta(BCY) and BaZr0.85Y0.15O3-delta (BZY) ceramics are fabricated by pulsed laser deposition (PLO) for use in micro-protonic ceramic fuel cells (micro-PCFCs), and their microstructure and fuel cell performances are investigated. Fully dense and well-crystallized BCY and BZY layers are identified in the multi- and mono-layered electrolytes, and are confirmed by microstructural analyses. Fuel cell and impedance measurements confirm that the bare BCY cells exhibit superior performance to samples with BZY capping; however, this capping does not offer any advantage in terms of operational stability. In contrast, the BCY-capped BZY cell performs better than the bare BZY cell, implying that BCY possesses more active surface kinetics. Anodic improvement is as important as cathodic modification for the intermediate-temperature operation of PCFCs. The BCY-capped BZY cell also demonstrates excellent stability, maintaining a good open circuit voltage for over 10 h. (C) 2013 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV LOW-TEMPERATURE CONDUCTING ELECTROLYTES PROTON CONDUCTIVITY HIGH-PERFORMANCE IT-SOFCS FABRICATION ELECTRODES STABILITY MEMBRANES OXIDES Micro ceramic fuel cells with multilayered yttrium-doped barium cerate and zirconate thin film electrolytes Article 10.1016/j.jpowsour.2013.10.057 1 JOURNAL OF POWER SOURCES, v.248, pp.1163 - 1169 JOURNAL OF POWER SOURCES 248 1163 1169 scie scopus 000330551000147 2-s2.0-84887450869 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article LOW-TEMPERATURE CONDUCTING ELECTROLYTES PROTON CONDUCTIVITY HIGH-PERFORMANCE IT-SOFCS FABRICATION ELECTRODES STABILITY MEMBRANES OXIDES Micro-protonic ceramic fuel cell Yttrium-doped barium zirconate Yttrium-doped barium cerate Multi layer electrolyte Pulsed laser deposition