| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터) |
| 권호 |
17권 2호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
The precipitation method for one-pot fabrication of cobalt-based composites electrode and its application in pseudocapacitors |
| 초록 |
Various cobalt-based composites grown on Ti plates were synthesized using electrochemical precipitation by controlling pH. For all samples, peaks associated with Co3O4, CoOOH, and Co(OH)2 were found in the XRD spectra for the cobalt-based composites. The morphologies of the cobalt oxide/hydroxide exhibited a mixture of 2D hexagonal platelets. The pseudocapacitive properties of cobalt-based composites were investigated using cyclic voltammetry (CV) in a 1 M KOH electrolyte solution. Oxidation and reduction peak currents were measured during cycling between −0.2 and 0.4 V (vs. a saturated calomel electrode). The Co3O4/Co(OH)2 electrode synthesized at pH 6.5 exhibited a maximum specific capacitance of 627 F g-1. The results suggest that cobalt-based composites are an effective strategy for producing high energy pseudocapacitor. |
| 저자 |
노광철1, 한조아2, 주용택3, 남산4, 박선민1
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| 소속 |
1한국세라믹기술원, 2한국세라믹기술원 / 고려대, 3비츠로셀, 4고려대 |
| 키워드 |
Cobalt oxide; Electrochemical precipitation; Electrochemical capacitors; Pseudocapacitor
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| E-Mail |
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