Nanostructure,porosity and electrochemical performance of chromium carbide derived carbons |
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| Affiliation: | 1. Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Calzada Ruiz Cortínes No. 455, 94294 Boca del Río, Veracruz, Mexico;2. CIC EnergiGUNE, Albert Einstein 48, 01510 Miñano, Álava, Spain;3. Centro Nacional de Microscopía Electrónica, Universidad Complutense, E-28040 Madrid, Spain;4. Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, E-28040 Madrid, Spain;1. Department of Food Science and Technology, Robert Mondavi Institute for Wine and Food Science and Foods for Health Institute, University of California, Davis, CA 95616, USA;1. Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China;2. Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), Qingdao, 266100, China;3. College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China;4. Shandong Guoping Testing Service Co., Ltd, Rizhao, 276800, China;1. Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK;2. Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK;3. Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading RG4 9NH, UK |
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| Abstract: | This paper presents the results from the investigation of the influence of the chlorination temperature, the carbide crystal structure, the Cr/C ratio and physicochemical properties of CrCl3 on the morphology, nanostructure, textural properties and electrochemical performance of CDCs. Electron microscopy and its analytical associated techniques reveal that these carbons, mainly composed by disordered graphene layers, evolve into graphitic nanostructures as a result of increasing the Cr/C content, the reaction temperature and the template effect of the etched CrCl3 halide. Their textural analysis indicates the formation of micro/mesoporous carbons with a pore width below 1.5 nm, surface area as high as 835 m2/g and exhibit capacitive behavior in aqueous electrolyte. |
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