| 학회 | 한국재료학회 |
| 학술대회 | 2008년 봄 (05/22 ~ 05/23, 상록리조트) |
| 권호 | 14권 1호 |
| 발표분야 | 에너지환경/생체재료 |
| 제목 | 이차 전지용 LiMn2O4 나노막대의 합성 및 특성평가 |
| 초록 | Nanostructured transition metal oxide with controlled shapes (nanorods, nanowires, nanotubes, nanoribbons, and nanopalteltes) and their potential technology applications have attracted strong interest. Among the transition metal oxides, molybdenum oxides (MoO3) has received considerable attention as a semiconductor with direct band gap between 2.9 and 3.15 eV, and conductor or superconductor depending on its oxidization states. The main oxides of molybdenum include MoO2 and MoO3, which have numerous industrial applications as catalysts, gas sensors, photochromic, and electrchromic materials. The ability to control and manipulate the physical and chemical properties of materials, as required for a specific application is one of the challenging issues in materials engineering. Molybdenum oxides have been synthesized by several solution phase methods. One among them is hydrothermal method that includes significant advantages, such as a high degree of chemical homogeneity achieved on the molecular level, use of mild temperatures and pressures, cost effectiveness, and easy synthesis. The shape-controlled growth of molybdenum oxide platelets were synthesized through a simple hydrothermal method using ethylenediaminetetraacetate (EDTA) salt solutions as chelating and capping agent. The effects of temperature, and duration on their morphology were investigated. The synthesized platelets structured samples were characterized by an X-ray diffraction (XRD), scanning electron microscopy (SEM) with an EDS, and transmission electron microscopy (TEM). The SEM micrograph shows the uniform formation of platelets of molybdenum oxide with an average thickness of ~ 300 nm. The characterization results for the structure, and morphologies of the platelets of molybdenum oxide will be discussed in detailed. |
| 저자 | 이현욱, P. Muralidharan, 하장훈, 김도경 |
| 소속 | KAIST 신소재공학과 |
| 키워드 | LiMn2O4; nanorods; secondary batteries |
