| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 | 21권 1호, p.530 |
| 발표분야 | 에너지 |
| 제목 | Synthesis of high purity W-doped VO2(M) in lower temperature condition for smart window application |
| 초록 | Vanadium dioxide(VO2) is a representative thermochromic material that can be applied in optical switching devices and energy-saving smart window. Still many researcher have been carried out, VO2 has problems to apply in smart window because of high synthetic temperature and low purity. It needs large amounts of heating energy to reach high calcination temperature of 800-900 oC so this process is economically infeasible. Also, generally other types of vanadium oxide impurities such as V4O9, V6O13 are contained in final products, which calcined in N2 atmosphere. In this study, we successfully prepared high purity W-doped VO2 that is synthesized followed by calcination at low temperature near 550 oC under 5% H2 atmosphere. The crystal structure is shown pure and intense VO2(M) in XRD and the phase transition temperature peaks also are symmetric and strong around 40 oC. These results exhibit high purity of VO2 and lower calcination temperature compared with those of calcination under N2 atmosphere. Further characterizations were carried out using TEM, FE-SEM and XPS analysis. |
| 저자 | 이지영1, 김희정2, 유중환1 |
| 소속 | 1한국세라믹기술원, 2한국세라믹기술원 / 성균관대 |
| 키워드 | |
| 원문파일 | 초록 보기 |
