Environmental-friendly economical cordierite-mullite-based ceramics for kiln furniture production and supports for CO2 hydrogenation towards C5+ fuels |
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| Affiliation: | 1. Department of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla tér 1, Szeged 6720, Hungary;2. HK-Ceram Ltd., Bese László utca 10, Szentes 6600, Hungary;3. MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged, Rerrich Béla tér 1, Szeged 6720, Hungary;1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, International Center for Dielectric Research, School of Electronic Science and Engineering & International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi’an Jiaotong University, Xi’an 710049, China;2. School of Microelectronics, Xidian University, Xi’an 710071, China;3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;4. State Key Laboratory for Manufacturing Systems Engineering & International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi''an Jiaotong University, Xi''an 710049, China;1. Henan Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China;2. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China;3. Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;1. AGH University of Science and Technology, Faculty of Materials Science and Ceramics, al. Mickiewicza 30, 30–059 Krakow, Poland;2. Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, ul. Narutowicza 11/12, 80–233 Gdańsk, Poland;3. Gdańsk University of Technology, Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, ul. Narutowicza 11/12, 80–233 Gdańsk, Poland;1. Chair of Ceramic Materials Engineering (CME), University of Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany;2. State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, No. 2 Linggong Road, 116024 Dalian, China;1. State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China;2. School of Science, Xi’an University of Posts and Telecommunications, 710061 Xi’an, China;3. The Institute of Scientific and Industrial Research, Osaka University, Japan |
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| Abstract: | In this study, lightweight cordierite-mullite ceramics with high strength and high thermal-shock resistance were successfully synthesized by solid-state method with the usage of hollow ceramic microspheres. After careful physico-chemical and mechanical characterization, we gained an economical cordierite material with a low bulk density of 1.40 g/cm3 with an apparent porosity of 44.78%, a flexural strength of 20.17 MPa and a coefficient of thermal expansion of 2.26 × 10−6 oC−1 compared to the bulk counterpart with a bulk density of 2.00 g/cm3 with an apparent porosity of 25.75%, a flexural strength of 23.69 MPa and a coefficient of thermal expansion of 2.47 × 10−6 oC−1. As a catalyst support of Na-FeOx, the economical cordierite has proved the same stability and activity in CO2 hydrogenation towards C5+ fuels as bulk cordierite-based catalyst counterparts. |
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| Keywords: | Cordierite Ceramics Lightweight Hollow sphere Catalyst support |
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