Study on Zinc Oxide-Based Electrolytes in Low-Temperature Solid Oxide Fuel Cells

Chen, Xia; Qiao, Zheng; Feng, Cheng; Kim, Jung-Sik; Wang, Baoyuan; Zhu, Bin

doi:10.3390/ma11010040

Cited by 76 publications

(40 citation statements)

References 51 publications

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“…Therefore, the development of SOFC components with the thin film structured is a critical stage to investigated in order to select the fabrication process that is appropriate to the material used . 146 For the transportation and portable application, the lowering operation temperature is crucial, some modification is needed such as introduce the bi-layer electrolyte and composed the new dopant on YSZ electrolyte with the small-scale fabrication to achieve the simple design of SOFCs .147 Therefore, for the future works the researchers necessary to consider the entire factor, the application, the parameter and the purpose of their studies that described before for the future works with the suitable fabrication method for each SOFC component . In addition, it reduces the overall operating temperature of the application of SOFCs .…”

Section: Challenges and Future Perspectivementioning

confidence: 99%

“…Unfortunately, the YSZ electrolyte only performed the best conductivity in high temperature . 146 For the transportation and portable application, the lowering operation temperature is crucial, some modification is needed such as introduce the bi-layer electrolyte and composed the new dopant on YSZ electrolyte with the small-scale fabrication to achieve the simple design of SOFCs .147 Therefore, for the future works the researchers necessary to consider the entire factor, the application, the parameter and the purpose of their studies that described before for the future works with the suitable fabrication method for each SOFC component . 148 Besides, the simulation and modeling works are useful for design, analyze and optimize the performance of SOFC component toward lowering the operating temperature .…”

Section: Challenges and Future Perspectivementioning

confidence: 99%

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A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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The solid oxide fuel cells (SOFCs) emerge as an alternative power generation system for high-scale stationary application and power plant station. The SOFC consumption leads to the high-efficiency energy production that forms variety of fuels up to 60% energy conversion; the operation system does not involve the burning process and minimizes the air pollution. Also, the aptitude to provide the cogenerative energy production from the heat waste during the operation process serve SOFC as an attractive green technology and environmentally friendly. However, the SOFC consumption remains limited for transportation and portable applications because the simple design of power source compartment is still the major hurdle in each SOFC component development and commercialization. Therefore, the appropriate fabrication method of each SOFC component is important to achieve the reliability of the SOFC application for the small-scale power generation design. In this paper, an overview of the design types and SOFC components and properties following electrode, electrolyte, interconnect and sealant are discussed and summarized. As the thirdgeneration fuel cells, which entice the commercialization stage, this paper concentrates more on the fabrication method of each SOFC components that were explored including the working principle, advantage, disadvantage and several previous works on each fabrication method, which are described to finding the appropriate fabrication method toward lowering the operating temperature and develop the simple design of SOFC power sources system for the transportation and portable application. The targeted market power production of SOFC system for transportation application is about 5 kW and 250 W for portable application.

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Section: Challenges and Future Perspectivementioning

confidence: 99%

Section: Challenges and Future Perspectivementioning

confidence: 99%

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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“…This is mainly because they have many advantages like high energy conversion efficiency, quiet operation, low cost and low pollution emission [1,2,3,4,5,6,7,8,9,10,11]. Cathode, anode and solid electrolyte are the vital components of the solid oxide fuel cell (SOFC).…”

Section: Introductionmentioning

confidence: 99%

SrCe0.9Sm0.1O3-α Compounded with NaCl-KCl as a Composite Electrolyte for Intermediate Temperature Fuel Cell

Shi

Chen

et al. 2018

Materials

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SrCeO3 and SrCe0.9Sm0.1O3-α were synthesized using a high-temperature solid-state reaction method using Sm2O3, SrCO3, CeO2 as precursors, then the SrCe0.9Sm0.1O3-α-NaCl-KCl composite electrolyte was fabricated by compounding SrCe0.9Sm0.1O3-α with NaCl-KCl and sintering it at a lower temperature (750 °C) than that of a single SrCeO3 material (1540 °C). The phase and microstructure of the samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The conductivities of the samples were measured in dry nitrogen atmosphere using electrochemical analyzer. The conductivities of the SrCeO3, SrCe0.9Sm0.1O3-α and SrCe0.9Sm0.1O3-α-NaCl-KCl at 700 °C were 2.09 × 10−5 S·cm−1, 1.82 × 10−3 S·cm−1 and 1.43 × 10−1 S·cm−1 respectively. The conductivities of SrCe0.9Sm0.1O3-α-NaCl-KCl composite electrolyte are four orders of magnitude higher than those of SrCeO3 and two orders of magnitude higher than those of SrCe0.9Sm0.1O3-α. The result of logσ ~ logpO2 plot indicates that SrCe0.9Sm0.1O3-α-NaCl-KCl is almost a pure ionic conductor. The electrolyte resistance and the polarization resistance of the H2/O2 fuel cell based on SrCe0.9Sm0.1O3-α-NaCl-KCl composite electrolyte under open-circuit condition were 1.0 Ω·cm2 and 0.2 Ω·cm2 respectively. Further, the obtained maximum power density at 700 °C was 182 mW·cm−2.

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“…[1,2,3,4,5,6,7,8,9,10,11,12,13]. Electrolytes based on an oxide ion conducting divalent or trivalent cations stabilized zirconia have been widely studied [14,15,16,17].…”

Section: Introductionmentioning

confidence: 99%

Yb2O3 Doped Zr0.92Y0.08O2-α(8YSZ) and Its Composite Electrolyte for Intermediate Temperature Solid Oxide Fuel Cells

et al. 2018

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Yb3+ and Y3+ double doped ZrO2 (8YSZ+4Yb2O3) samples were synthesized by a solid state reaction method. Moreover, 8YSZ+4Yb2O3-NaCl/KCl composites were also successfully produced at different temperatures. The 8YSZ+4Yb2O3, 8YSZ+4Yb2O3-NaCl/KCl (800 °C), and 8YSZ+4Yb2O3-NaCl/KCl (1000 °C) samples were characterized by x–ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that a dense composite electrolyte was formed at a low temperature of 800 °C. The maximum conductivities of 4.7 × 10−2 S·cm−1, 6.1 × 10−1 S·cm−1, and 3.8 × 10−1 S·cm−1 were achieved for the 8YSZ+4Yb2O3, 8YSZ+4Yb2O3-NaCl/KCl (800 °C), and 8YSZ+4Yb2O3-NaCl/KCl (1000 °C) samples at 700 °C, respectively. The logσ~log (pO2) plot result showed that the 8YSZ+4Yb2O3-NaCl/KCl (800 °C) composite electrolyte is a virtually pure ionic conductor. An excellent performance of the 8YSZ+4Yb2O3-NaCl/KCl (800 °C) composite was obtained with a maximum power density of 364 mW·cm−2 at 700 °C.

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Study on Zinc Oxide-Based Electrolytes in Low-Temperature Solid Oxide Fuel Cells

Cited by 76 publications

References 51 publications

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

SrCe0.9Sm0.1O3-α Compounded with NaCl-KCl as a Composite Electrolyte for Intermediate Temperature Fuel Cell

Yb2O3 Doped Zr0.92Y0.08O2-α(8YSZ) and Its Composite Electrolyte for Intermediate Temperature Solid Oxide Fuel Cells

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