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BaCeO3-BaZrO3 solid solution (BCZY) as a high performance electrolyte of protonic ceramic fuel cells (PCFCs)

Title
BaCeO3-BaZrO3 solid solution (BCZY) as a high performance electrolyte of protonic ceramic fuel cells (PCFCs)
Other Titles
BaCeO3-BaZrO3 기반 프로톤 세라믹 연료전지(PCFC)용 고성능 전해질 개발
Author
신동욱
Keywords
Proton conductor; Fuel cell; Electrolyte; BZCY; Stability
Issue Date
2014-07
Publisher
한국세라믹학회
Citation
한국세라믹학회지, 2014, 51(4), P.271-277
Abstract
To overcome the limitations of the solid oxide fuel cells (SOFCs) due to the high temperature operation, there has been increasinginterest in proton conducting fuel cells (PCFCs) for reduction of the operating temperature to the intermediate temperature range. Inpresent work, the perovskite BaCe0.85-xZrxY0.15O3-δ (BCZY, x = 0.1, 0.3, 0.5, and 0.7) were synthesized via solid state reaction (SSR)and adopted as an electrolyte materials for PCFCs. Powder characteristics were examined using X-ray diffraction (XRD), thermogravimetricanalysis (TGA) and Brunauer, Emmett and Teller (BET) surface area analysis. Single phase BCZY were obtained in allcompositions, and chemical stability was improved with increasing Zr content. Anode-supported cell with Ni-BaCe0.55Z0.3Y0.15O3-δ (BCZY3) anode, BCZY3 electrolyte and BCZY3-Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) composite cathode was fabricated andelectrochemically characterized. Open-circuit voltage (OCV) was 1.05 V, and peak power density of 370 (mW/cm2) was achieved at650oC.
URI
https://www.jkcs.or.kr/journal/view.php?doi=10.4191/kcers.2014.51.4.271
ISSN
1229-7801
DOI
10.4191/kcers.2014.51.4.271
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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