2021 Fiscal Year Annual Research Report
Designing of super carbon materials for ionic liquid-based supercapacitors by template carbon method
| Project/Area Number |
20K22458
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| Research Institution | Tohoku University |
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Principal Investigator |
唐 睿 東北大学, 材料科学高等研究所, 特任助教 (70880144)
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| Project Period (FY) |
2020-09-11 – 2022-03-31
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| Keywords | ionic liquid / templated carbon / supercapacitors |
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| Outline of Annual Research Achievements |
1. The electrochemical degradation of an ionic liquid was investigated using a variety of carbon materials including carbon blacks, activated carbons, zeolite templated carbon, and mesoporous templated carbon. The carbon basal plane was found to be involved in the degradation reactions.
2. The structure of a mesoporous templated carbon was controlled to have different graphene stacking numbers and various amounts of nitrogen doping. It is found that the capacitance has a quantum origin and we successfully quantified the quantum capacitance for a full understanding of the origin of capacitance. Furthermore, the nitrogen-doped carbon shows enhanced quantum capacitance and a good overall performance in ionic liquid-based supercapacitors.
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