Ultra-flexible Al2O3 fibers: A novel catalyst support material for sustainable catalysis |
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| Affiliation: | 1. School of Mechanical Engineering, Henan University of Technology, Zhengzhou, 450001, PR China;2. School of Materials Science and Engineering, Henan University of Technology, Zhengzhou, 450001, PR China;3. State Key Laboratory of Power Metallurgy, Central South University, Changsha, 410083, PR China;4. Faculty of Engineering and Information Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia;5. State Key Lab of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan, 430070, China;1. College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Rare-Earth Functional Materials and Devices Development, Baoji University of Arts and Sciences, Baoji, 721016, China;2. College of Physics and Optoelectronic Technology, Baoji University of Arts and Sciences, Baoji, 721013, China;3. School of Physics, Xidian University, Xi''an, 710071, China;1. Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia;2. Nanomaterials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87 Helwan, 11421, Cairo, Egypt;1. School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, PR China;2. Wuxi DK Electronic Materials Co., Ltd, Wuxi, 214200, PR China;1. Materials and Structures Division, NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH, 44135, USA;2. University of Toledo, Toledo, OH, USA;1. Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China;2. Zhejiang Institute of Advanced Materials, SHU, Jiashan, 314113, China |
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| Abstract: | Flexible aluminum oxide (Al2O3) fibers were prepared by the blow spinning method and their potential as a high-temperature catalyst support was investigated. The synthesized Al2O3 fibers exhibited remarkable flexibility in both mechanical compression and recovery tests, which remained intact in a wide temperature range from ?196 °C to 1200 °C. Moreover, their low thermal conductivity of 0.030 W K?1?m?1, demonstrated an outstanding thermal insulation. Subsequently, nickel nanoparticles were uniformly distributed on the surface of the Al2O3 fibers as a self-supporting catalyst using a conventional impregnation method. The resulting self-supporting Ni/Al2O3 catalyst demonstrated remarkable thermo-catalytic performance and re-activation capability at high temperatures for thermocatalytic reaction of dry reforming of methane (DRM). Our findings highlight the potential of pure Al2O3 flexible fibers as a versatile material for various industrial applications, including high-temperature catalysis. |
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| Keywords: | Inorganic fibers Flexible fibers Catalysts |
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