Superior Supercapacitor Properties of Composite Powders with Amorphous NiO Nanoclusters Distributed Uniformly in an Amorphous Carbon Matrix |
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| Authors: | Seung Ho Choi Prof. Yun Chan Kang Yun Ju Choi Dr. Yang Soo Kim |
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| Affiliation: | 1. Department of Chemical Engineering, Konkuk University, 1 Hwayang‐dong, Gwangjin‐gu, Seoul 143‐701 (Republic of Korea);2. Suncheon Center, Korea Basic Science Institute, Suncheon 540‐742 (Republic of Korea) |
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| Abstract: | Amorphous nickel oxide–carbon composite powders have been prepared using a facile spray‐drying process. The nickel nitrate–citrate hydrate precursor powders were transformed into an amorphous NiO–carbon composite powder through a post‐treatment at 250 °C for 1 h. The excellent supercapacitor performance of the amorphous NiO–carbon composite powder can be ascribed to the unique electrochemical behavior of the ultrafine amorphous NiO nanoclusters. |
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| Keywords: | amorphous materials carbon composite nickel oxide spray drying supercapacitors |
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