Bae, Kiho Noh, Ho-Sung Jang, Dong Young Hong, Jongsup Kim, Hyoungchul Yoon, Kyung Joong Lee, Jong-Ho Kim, Byung-Kook Shim, Joon Hyung Son, Ji-Won 2024-01-20T04:30:59Z 2024-01-20T04:30:59Z 2021-09-03 2016-05 2050-7488 https://pubs.kist.re.kr/handle/201004/124139 A novel strategy to fabricate high-performance thin-film protonic ceramic fuel cells (PCFCs) is introduced by building thin-film PCFC components, including BaCe0.55Zr0.3Y0.15O3-delta (BCZY) electrolytes (1.5 mu m) over anode supports consisting of non-proton-conducting ceramic and metal catalytic phases. Ni-yttria-stabilized zirconia (YSZ) was used as supports in this study, which is superior in terms of its well-established facile fabrication process, along with physical and chemical stability, compared to proton-conducting materials. The Ni-YSZ supports provided a flat and smooth deposition surface that facilitates the deposition of the thin film components. A Ni-BCZY anode (similar to 3 mu m), a dense BCZY electrolyte layer (similar to 1.5 mu m), and a porous Ba0.5Sr0.5Co0.8Fe0.2O3-delta cathode (similar to 2 mu m) were sequentially fabricated over the Ni-YSZ substrates using pulsed laser deposition, followed by post-annealing, and the process was optimized for each component. A fully integrated thin-film PCFC microstructure was confirmed, resulting in high open circuit voltages exceeding 1 V at operating temperatures in the range of 450-650 degrees C. A promising fuel cell performance was obtained using the proposed fuel cell configuration, reaching a peak power density of 742 mW cm(-2) at 650 degrees C. English ROYAL SOC CHEMISTRY PULSED-LASER DEPOSITION CERMET ANODES CHEMICAL-STABILITY IT-SOFCS ELECTROLYTE CATHODE MICROSTRUCTURE OXIDES PCFCS High-performance thin-film protonic ceramic fuel cells fabricated on anode supports with a non-proton-conducting ceramic matrix Article 10.1039/c5ta10670b 1 JOURNAL OF MATERIALS CHEMISTRY A, v.4, no.17, pp.6395 - 6403 JOURNAL OF MATERIALS CHEMISTRY A 4 17 6395 6403 scie scopus 000374862600020 2-s2.0-84968719116 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article PULSED-LASER DEPOSITION CERMET ANODES CHEMICAL-STABILITY IT-SOFCS ELECTROLYTE CATHODE MICROSTRUCTURE OXIDES PCFCS thin-film PCFC non-proton-conducting ceramic matrix BCZY Ni-BCZY Ni-YSZ