| Budget Amount *help |
¥44,330,000 (Direct Cost: ¥34,100,000、Indirect Cost: ¥10,230,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2019: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2018: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
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| Outline of Final Research Achievements |
In both planar carbon skeletons (graphite) and curved carbon skeletons (carbon nanotubes), a high concentration of pyridinic nitrogen species (Pyri-N) was successfully introduced into the carbon skeleton by the fluorination-defluorination method. It was also found that heat treatment in inert gas causes Pyri-N to decompose and undergo structural transition to graphitic nitrogen species (Grap-N), which is stable structure, and the ratio of Grap-N increases in the carbon framework. The electronic state of carbon materials is highly dependent on the curvature of carbon framework, revealing that the increase in the electron density by doping Grap-N around nanosized edges is essential to enhance oxygen reduction reaction catalytic activity.
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