Preparation and properties of a new porous ceramic material used in clean energy field |
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| Affiliation: | 1. Department of Materials Science and Engineering, University of Science & Technology Beijing, Beijing, 100083, China;2. Ceramic Science Institute China Building Materials Academy, Beijing, 100024, China;3. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, China;4. Bohai Shipyard Group Co., Ltd., Huludao, 125004, China;1. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian, 116024, China;2. School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, China;3. Department of Orthopedics, The Second Hospital of Dalian Medical University, Dalian, 116024, China;1. School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China;2. Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, D-70569, Stuttgart, Germany;3. Department of Physics, Shantou University, Shantou, 515063, China;1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, China;2. College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266000, China;3. MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, Shaanxi Key Laboratory of Condensed Matter Structure and Properties, Northwestern Polytechnical University, Xi''an, 710129, China;1. School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China;2. State Key Laboratory of High Performance Complex Manufacturing, Changsha, 410083, China;3. College of metallurgies and energy, North China Science and Technologies University, Tangshan, 063009, China |
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| Abstract: | At high temperature, the oxide redox reactions of ceria can split H2O and CO2 to produce H2 and CO, so porous ceria with high temperature resistance and high specific surface area has an important foreground in clean energy applications. In this work, a reticulated porous ceria ceramic material with interconnected porous structure was prepared by the impregnation technique using organic polyurethane sponges as template. The influences of pretreated sponge, dipping time length, pore size and sintering temperature on the porosity and strength of the porous ceria ceramics were systematically studied. With the increasing sintering temperature, the glass phase occurred and led to an increase in strength, but an decrease in porosity. Eventually, we analyzed the relationships between porosity and strength of these porous materials, aiming to provide theoretical and practical references for its application in clean-energy field. |
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| Keywords: | Porous ceramics Porous ceria Impregnation Clean-energy |
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