| 학회 |
한국재료학회 |
| 학술대회 |
2009년 가을 (11/05 ~ 11/06, 포항공과대학교) |
| 권호 |
15권 2호 |
| 발표분야 |
B. Nanomaterilas Technology(나노소재 기술) |
| 제목 |
The study on thermal analysis and thermodynamic characteristics of spinel compounds(Zn1+xCo2-xO4 : x=0,0.05,0.1,0.15,0.2) by sol-gel method |
| 초록 |
We synthesized spinel structure (Zn1+xCo2-xO4 : x=0,0.05,0.1,0.15,0.2) nanoparticles. The formation of spinel compound has been confirmed by thermogravimetry (TGA), X-ray powder diffraction (XRD), Scanning electron microscopy(SEM) and Infra-red spectrometer (IR). The particle size of 13~16 nm has been indicated by Scherrer`s formula. The sol–gel method provides a practicable and effective route for the synthesis the spinel compound at low temperature. The kinetic parameters such as activation energy (Ea) and pre-exponential factor(A) for each compound were found by means of the Kissinger method and were verified by the Ozawa–Flynn–Wall method. The thermodynamic parameters (ΔG#, ΔH# and ΔS#) for decomposition of spinel compound (Zn1+xCo2-xO4 : x=0,0.05,0.1,0.15,0.2) were determined. |
| 저자 |
김재욱1, 권태필1, 차병관1, 지명진1, 경동현1, 박병천1, 김종규1, 황용현2
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| 소속 |
1단국대, 2한국신소재응용(연) |
| 키워드 |
spinel; Kissinger; thermodynamic parameter
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| E-Mail |
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