Electrochemical generation of oxygen-containing groups in an ordered microporous zeolite-templated carbon |
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| Affiliation: | 1. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan;2. Departamento de Química Física and Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain;3. Departamento de Química Inorgánica and Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain;1. Institute for Multidisciplinary Research for Advance Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;2. Division of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan;3. Department of Chemical Science and Technology, Hosei University, 3-7-2 Kajino, Koganei, Tokyo 184-8584, Japan;4. Department of Chemistry, Tokyo Institute of Technology, W4-1/2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan;1. Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Apdo 99, Alicante, Spain;2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan;3. Departamento de Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Apdo 99, Alicante, Spain;1. Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade, 11158, Serbia;2. Institute of Nuclear Sciences “Vinča”, University of Belgrade, Mike Petrovića Alasa 12-14, 11001, Belgrade, Serbia;3. Serbian Academy of Sciences and Arts, Knez Mihajlova 35, Belgrade, 11000, Serbia;1. Department of Physics, Ben-Gurion University of the Negev, P. O. Box 653, Be''er Sheva 8410501, Israel;2. Ioffe Physical-Technical Institute, 194021 St. Petersburg, Russia;3. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai 980-8577, Japan;1. Department of Chemistry and Chemical Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea;2. Department of Chemistry, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea |
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| Abstract: | Zeolite templated carbon (ZTC) was electrochemically oxidized under various conditions, and its chemistry and structural evolution were compared to those produced by conventional chemical oxidation. In both oxidation methods, a general loss of the original structure regularity and high surface area was observed with increasing amount of oxidation. However, the electrochemical method showed much better controllability and enabled the generation of a large number of oxygen functional groups while retaining the original structure of the ZTC. Unlike chemical treatments, highly microporous carbons with an ordered 3-D structure, high surface area (ranging between 1900 and 3500 m2/g) and a large number of oxygen groups (O = 11,000–3300 μmol/g), have been prepared by the electrochemical method. Some insights into the electrooxidation mechanism of carbon materials are proposed from the obtained polarization curves, using ZTC as a model carbon material. |
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