Molybdenum trioxide (MoO3) is used in various applications including sensors, photocatalysts, and batteries owing to its excellent ionic conductivity and thermal properties. It can also be used as a precursor in the hydrogen reduction process to obtain molybdenum metals. Control of the parameters governing the MoO3 synthesis process is extremely important because the size and shape of MoO3 in the reduction process affect the shape, size, and crystallization of Mo metal. In this study, we fabricated MoO3 nanoparticles using a solution combustion synthesis (SCS) method that utilizes an organic additive, thereby controlling their morphology. The nucleation behavior and particle morphology were confirmed using ultraviolet-visible spectroscopy (UV-vis) and field emission scanning electron microscopy (FE-SEM). The concentration of the precursor (ammonium heptamolybdate tetrahydrate) was adjusted to be 0.1, 0.2, and 0.4 M. Depending on this concentration, different nucleation rates were obtained, thereby resulting in different particle morphologies.

Abstract
1. 서 론
2. 실험 방법
    2.1 전구체 농도에 따른 핵생성 거동 및 MoO3 나노입자 합성 실험
    2.2 특성 평가
3. 결과 및 고찰
    3.1 전구체 농도에 따른 핵생성 거동
    3.2 MoO3 나노입자 합성
4. 결 론
References

• 이세영(단국대학교 에너지공학과) | Seyoung Lee (Department of Energy Engineering, Dankook University)
• 권남훈(단국대학교 에너지공학과) | Namhun Kwon (Department of Energy Engineering, Dankook University)
• 노재석(단국대학교 에너지공학과) | Jaeseok Roh (Department of Energy Engineering, Dankook University)
• 이근재(단국대학교 에너지공학과) | Kun-Jae Lee (Department of Energy Engineering, Dankook University) Corresponding Author