| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.1770 |
| 발표분야 |
에너지 |
| 제목 |
Flowerlike α-Nickel Hydroxide Intercalated with Different Anions via Dodecyl Sulfate Template: Enhanced Chemical Stability and Supercapacitive Property |
| 초록 |
α-Ni(OH)2 has superior theoretical electrochemical capacity compared to β-Ni(OH)2. Because it is unstable phase, it limits commercial products. In this poster, homogeneous precipitation using hexamethylenetetramine via dodecyl sulfate template is employed to make flowerlike α-Ni(OH)2, which can endure strong acid and alkali medium compared to other reported α-Ni(OH)2. By intercalating desired anions (NO3, Cl, OAc and SO42), basal spacing of α-Ni(OH)2 can be controlled, which affect their specific capacitance. SO42 intercalated α-Ni(OH)2 which has the highest value of basal spacing can deliver 644 F/g at 5mV/s of scan rate and have good electrochemical stability after 1000 cycle test. It suggest that flowerlike α-Ni(OH)2 with high chemical stability as well as electrochemical stability is a promising supercapacitor electrode materials. |
| 저자 |
이정우1, 안태빈1, 김종훈1, 윤재국2, 고장면2, 김종득1
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| 소속 |
1KAIST, 2한밭대 |
| 키워드 |
alpha-nickel hydroxide; supercapacitor
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| E-Mail |
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| 원문파일 |
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