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Mixed ionic-electronic conductor membrane based fuel cells by incorporating semiconductor Ni0.8Co0.15Al0.05LiO2-delta into the Ce0.8Sm0.2O2-delta-Na2CO3 electrolyte
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- Zhang, Wei (författare)
- Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China.
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- Cai, Yixiao (författare)
- KTH,Uppsala universitet,Tillämpad materialvetenskap,Royal Inst Technol, Dept Energy Technol, SE-10044 Stockholm, Sweden.,Energiteknik,Department of Engineering Sciences, Ångström Laboratory, Uppsala University, 751 21 Uppsala, Sweden
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- Wang, Baoyuan (författare)
- KTH,Energiteknik,Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China
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- Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China Tillämpad materialvetenskap (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
- Ingår i: International journal of hydrogen energy. - : Elsevier BV. - 0360-3199 .- 1879-3487. ; 41:34, s. 15346-15353
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- In the present study, a novel composite was fabricated by incorporating the semiconductor Ni0.8Co0.15Al0.05LiO2-delta (NCAL) into the ionic electrolyte Ce0.8Sm0.2O2-delta-Na2CO3 (NSDC), and further developed as a mixed-conducting membrane for single layer fuel cell (SLFC) applications. Experimentally, the crystal structure, morphology, chemical composition and thermo-stability of the composite were characterized by XRD, SEM and TGA. The best cell performance was investigated when the NSDC-NCAL membrane was optimized at a weight ratio of 6:4. On this basis, a number of interesting findings were obtained: i) the mixed conducting membrane did not cause any short circuit; on the contrary, the cell reached a decent open circuit voltage (OCV) of similar to 1.0 V. a high power density of 1072 mW cm(-2) was achieved at 550 degrees C for the NSDC-NCAL membrane based cell, which was much better than that using a pure NSDC electrolyte membrane. Electrochemical impedance spectroscopy (EIS) showed that the NSDC-NCAL composite exhibited significantly improved grain boundary conduction and reduced electrode polarizations, contributing to the resultant performance. To consolidate the usefulness of the device, we also conducted the durability test. The above findings indicate the strategy of introducing mixed NSDC-NCAL membrane is feasible for high-performance SLFCs operating at low temperatures.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Low temperature solid oxide fuel cell
- Mixed conducting membrane
- Ni0.8Co0.15Al0.05LiO2-delta(NCAL)-Ce0.8Sm0.2O2-delta-Na2CO3(NSDC)
- Single layer fuel cell
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- art (ämneskategori)
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- Zhang, Wei
- Cai, Yixiao
- Wang, Baoyuan
- Xia, Chen
- Dong, Wenjing
- Li, Junjiao
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- Zhu, Bin
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