期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 5, 页码 1443-1447出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14182a
关键词
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资金
- National Natural Science Foundation of China [21171035, 51302035]
- Key Grant Project of Chinese Ministry of Education [313015]
- PhD Programs Foundation of the Ministry of Education of China [20110075110008, 20130075120001]
- National 863 Program of China [2013AA031903]
- Science and Technology Commission of Shanghai Municipality [13ZR1451200]
- Fundamental Research Funds for the Central Universities
- Shanghai Leading Academic Discipline Project [B603]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
We have reported a facile, template-free and effective electrochemical method to grow MnO2 ultrafine nanobelts on Ni foam. Electrochemical measurements showed that the MnO2 nanobelt electrode exhibited an enhanced specific capacitance of 509 F g(-1) at 200 mA g(-1) at 50 degrees C. More importantly, the specific capacitance of the MnO2 nanobelt electrode nearly has 91.3% retention after 5000 cycles with repeated heating and cooling in the temperature range of 0 to 50 degrees C, showing good high temperature-resistive long-term cycle stability.
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