Fabrication and characterization of new bulky layer mixed metal oxide ceramic nanofibers through two nozzle electrospinning method |
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| Affiliation: | 1. Department of Chemical Engineering, Razi University, Kermanshah, 67149-67346 Kermanshah, Iran;2. Department of Mechanical Engineering, Razi University, Kermanshah, 67149-67346 Kermanshah, Iran;3. Department of Chemistry, University of Victoria (UVic), Victoria, BC, Canada V8P 5C2;1. Institute Center for Water and Environment (iWATER), Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, Abu Dhabi 54224, UAE;2. Department of Materials Science and Engineering;3. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge MA 02139, USA;1. School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West Hi-Tech Zone, 611731, Chengdu, Sichuan, PR China;2. Department of Energy Sciences, Faculty of Engineering, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden;1. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, China;2. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Key Laboratory of Eco-Textile, Jiangnan University, Ministry of Education, Wuxi, Jiangsu 214122, China;1. State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 25010, PR China;2. Advanced Materials Institute, Shandong Provincial Key Laboratory for Special Silicone-Containing Materials, Qilu University of Technology (Shandong Academy of Science), Jinan 250014, PR China |
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| Abstract: | New bulky layers of metal mixed ceramic nanofibers were fabricated through two-nozzle electrospinning method followed by calcination. Solutions of PAN in DMF with various concentrations were prepared as: 11, 12, 13, 14, and 15 wt% to which the constant amounts of 2.1 g of Aluminum acetate, 0.3 g of Copper acetate and 0.3 g of Boehmite nanoparticles were added. A stepwise calcination process was utilized to obtain the ceramic nanofibers. The nanofibers were characterized by FTIR spectroscopy, TG-DTA, XRD, SEM and EDS techniques. The formulation with 12 wt% of PAN in DMF was proved to be the optimum spinable sample. The average diameter of as spun nanofibers was detected as 568 nm, which decreased to 181 nm after calcination and thermal degradation. Ceramic nanofibers were composed of CuO, Al2O3 and Cu2Al4O7 phases. The average density of the sample was about 0.090 (g/cm3) and the porosity of the mat was 94.5% and thus, production of a 3D structure may be claimed. The ceramic nanofibers performed well as catalyst in the C-C coupling reaction (Suzuki reaction) by facilitating the synthesis of biaryl compound from aryl iodide in 20 min with isolated yield of 89% only by using 15 mg of ceramic nanofibers as the nano catalyst. |
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| Keywords: | Electrospinning Boehmite nanoparticles Bulky layer Ceramic nanofibers Alumina-copper oxide |
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