3D Printing of Robust 8YSZ Electrolytes with a Hyperfine Structure for Solid Oxide Fuel Cells
Fully stabilized zirconia (8YSZ) has been considered a promising candidate for fabricating electrolytes of solid oxide fuel cells (SOFCs) due to the excellent oxygen ionic conductivity. Recently, structural optimization of a fully stabilized zirconia (8YSZ) electrolyte via vat photopolymerization (VP) technology has shown great potential in improving performance. Generally, preferable mechanical strength is required along with conductivity for the electrolyte structure. However, investigation on the mechanical properties of printed 8YSZ parts has been absent. Herein, an optimized 8YSZ photosensitive slurry was developed and the overall performance of the printed parts was tested systematically. The slurry with a high solid loading (50 vol %) exhibited a low viscosity (1.2 Pa·s, shear rate of 30 1/s). The printed parts showed superior mechanical (fracture toughness of 3.31 ± 0.38 MPa·m, flexural strength of 372 ± 11 MPa) and electrochemical (ion conductivity of 4.03 × 10 S/cm at 800 °C) properties. Besides, the characteristic size of the prepared complex three-dimensional (3D) electrolyte structure was as small as 100 μm. Results indicated that the electrolytes achieved both comparable mechanical and electrochemical properties to those of conventional processes. Therefore, VP technologies open up an avenue for the fabrication of robust and geometrically hyperfine 8YSZ electrolytes with good electrochemical performance.
First ; Corresponding
Shenzhen Science and Technology Innovation Commission["GJHZ20200731095606021","KQTD20190929172505711","20200925155544005"]
|WOS Research Area|
Chemistry ; Energy & Fuels ; Materials Science
Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
|WOS Accession No|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Department of Mechanical and Energy Engineering|
1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.College of New Energy,China University of Petroleum (East China),Qingdao,266580,China
|First Author Affilication||Department of Mechanical and Energy Engineering|
|Corresponding Author Affilication||Department of Mechanical and Energy Engineering|
|First Author's First Affilication||Department of Mechanical and Energy Engineering|
Yuan，Jinsi,Chen，Yuzhu,Sun，Jinxing,et al. 3D Printing of Robust 8YSZ Electrolytes with a Hyperfine Structure for Solid Oxide Fuel Cells[J]. ACS Applied Energy Materials,2022,6(8).
Yuan，Jinsi.,Chen，Yuzhu.,Sun，Jinxing.,Wang，Yue.,Lin，Meng.,...&Bai，Jiaming.(2022).3D Printing of Robust 8YSZ Electrolytes with a Hyperfine Structure for Solid Oxide Fuel Cells.ACS Applied Energy Materials,6(8).
Yuan，Jinsi,et al."3D Printing of Robust 8YSZ Electrolytes with a Hyperfine Structure for Solid Oxide Fuel Cells".ACS Applied Energy Materials 6.8(2022).
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