Sculpture preparation of crystalline mesoporous carbons from nanoshell-containing carbon |
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| Affiliation: | 1. SSN Research Centre, SSN College of Engineering, Kalavakkam 603110, Chennai, India;2. Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Centre of Excellence for Green Energy and Sensor System, Indian Institute of Engineering Science and Technology, Howrah 711103, West Bengal, India;1. Universidad de Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Cerro de la Venada s/n, Pueblito de Rocha, C.P. 36040 Guanajuato, Gto., Mexico;2. Ecole des mines d’Alès, Centre des Matériaux des Mines d’Alès, C2MA/MPA, F-30319 Alès cedex, France;1. College of Materials Science and Engineering, Xi''an University of Architecture and Technology, Xi’an 710055, China;2. Department of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, United Kingdom;1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. on Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Fujian Academy of Forestry, Fuzhou, Fujian, 350012, China;3. Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China |
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| Abstract: | Crystalline mesoporous carbon was prepared from nanoshell-containing carbon (NSCC) by a sculpturing technique, i.e., the selective oxidation of amorphous carbon moieties (ACM) in NSCC using hydrogen peroxide (H2O2) treatment. The carbon structures of the NSCC and the H2O2-treated NSCC were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) measurement and N2 adsorption–desorption. Multiple repetitions of the treatment resulted in an increase of nanoshell fraction by the selective oxidation of the ACM intrinsically included in NSCC. This was confirmed by TEM, SEM and XRD measurements. N2 adsorption–desorption measurement showed that the treatment caused remarkable increases in mesopore volumes and the mesopore ratios. In particular, when the treatment was repeated five times the highest mesopore ratio of approximately unity was observed. |
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