Electrically conductive aluminosilicate/graphene nanocomposite |
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| Affiliation: | 1. Faculty of Science, University of J.E.Purkyně, České mládeže 8, 400 96 Ústí nad Labem, Czech Republic;2. Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic;3. IT4Innovations Centre of Excellence, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic;4. Faculty of Metallurgy and Materials Engineering, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic;5. Faculty of Electrical Engineering and Computer Science, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic;1. School of Materials Science & Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, PR China;2. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, PR China;3. Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, PR China;1. University of North Texas, Department of Physics and Advanced Materials & Manufacturing Institute, 1155 Union Circle, Denton, TX 76203, USA;2. Military University of Technology, Institute of Optoelectronics, 2 Kaliskiego Str., 00-908 Warsaw, Poland;3. Skolkovo Institute of Science and Technology, 3 Nobel St., Moscow 143026, Russia;1. UVHC, LMCPA EA 2443, F-59313 Valenciennes, France;2. Univ. Lille Nord de France, F-59000 Lille, France;3. ONERA Lille, F-59045 Lille, France;1. Department of Applied Physics, School of Physical Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India;2. University School of Basics and Applied Sciences, Guru Gobind Singh Indraprastha University, New Delhi 110078, India;3. Inter University Aceelerator Centre, New Delhi 110067, India;4. Department of Physics, Malaviya National Institute of Technology, Jaipur 302017, India;1. College of Physical Engineering, Henan University of Science and Technology, Luoyang 471023, People''s Republic of China;2. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, People''s Republic of China;3. College of Physical Science and Technology, Sichuan University, Chengdu 610065, People''s Republic of China;1. School of Physics & Electronic Science and Institute of Applied Chemistry, Shanxi Datong University, Datong 037009, PR China;2. State Key Laboratory for Mechanical Behavior of Materials, Xi''an Jiaotong University, Shannxi 710049, PR China |
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| Abstract: | Highly electrically conductive ceramic material based on aluminosilicate/graphene nanocomposite has been prepared by high pressure (400 MPa) compaction of montmorillonite intercalated with polyaniline followed with the high temperature (1400 °C) treatment in argon atmosphere. Tablets pressed from polyaniline/montmorillonite intercalate exhibits strong texture due to the disk-shaped montmorillonite particles and, consequently, the high anisotropy in conductivity. The high temperature induced phase transformation of montmorillonite into cristobalite and mullite preserved the aluminosilicate layered structure and created good conditions for formation of graphene sheets from polyaniline layers intercalated in montmorillonite. Therefore, the texture and anisotropy in conductivity remain preserved in resulting aluminosilicate/graphene tablets, while the in-plane conductivity in aluminosilicate/graphene tablets is 23,000× higher than the conductivity of uncalcined polyaniline/montmorillonite tablets. Simple fabrication method of aluminosilicate/graphene tablets is very promising for the manufacturing of the electrically conductive and tough ceramic material, which can be exposed to corrosive environment as well as to high temperatures. |
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| Keywords: | Aluminosilicate Graphene Polyaniline Conductivity Calcination |
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