Synthesis of germanium encapsulated fullerene |
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| Authors: | Debmalya Roy NK Tripathi K Ram N Sathyamurthy |
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| Institution: | 1. Nanoscience and Technology Division, Defence Material and Store Research & Development Establishment (DMSRDE), DMSRDE P.O., G.T. Road, Kanpur-208013, India;2. Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India;3. Indian Institute of Science Education and Research (IISER) Mohali, Chandigarh 160019, India;1. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;2. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Hong Kong Special Administrative Region, China;3. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;4. Beijing Computational Science Research Center, Beijing 100084, China;1. Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 620990 Ekaterinburg, Russian Federation;2. Paul Scherrer Institut WHGA 123, CH-5232 Villigen PSI, Switzerland;1. A. E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of the Russian Academy of Sciences, 420088 Kazan, Russian Federation;2. Kazan National Research Technological University, 420015 Kazan, Russian Federation;2. Centro de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal |
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| Abstract: | A method has been described for encapsulating Ge in a fullerene cage using GeO2 and a graphite composite rod as anode and graphite as cathode. Annealing in an inert atmosphere before arcing, and the amount of GeO2 in the rod determined the yield of Ge doped metallofullerene. Solvent extraction using soxlet in inert atmosphere followed by calcination in air was used to isolate metallofullerene from the soot. The insertion of Ge inside the fullerene was proven by ultra violet–visible absorption spectroscopy, matrix assisted laser desorption ionization-time of flight mass spectroscopy, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. |
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